Sony ST-JX310 tuner

Sony ST-JX310

Quartz Synthesis AM/FM Tuner

Sony's Lowest-Price Quartz Synthesis Tuner

Quartz frequency synthesis

5 AM/ 5 FM memory presets

Microprocessor-controlled tuning

Interstation muting switch

Key Selling Feature - Quartz frequency Synthesis

Of all the tuning systems available today, none is more convenient, none more precise, none offers greater freedom from drift and distortion than the system used in the ST-JX310 - Quartz frequency synthesis. Radio stations use a quartz crystal to maintain their location on the dial. in the same way, the ST-JX310 uses quartz to tune stations in with the utmost precision. it's easy, straightforward, and accurate every time.

Key Demonstration

Explain that the tuner uses a microprocessor to synthesize each station frequency, and uses quartz precision to lock onto that frequency. There is no drift or fade, Demonstrate operation by asking the customer for his or her favourite station. Tune the station manually, then enter it into one of the tuner's memory presets. Tune in another station, then retrieve the station just preset. Point out that, once memorized, any station can be recalled at any time with a touch of a button.

Convenience Features

Microprocessor tuning with manual "step" tuning up and down the dial

Five AM and five FM station memory presets for instant recail at the touch of a button

Liquid crystal display includes preset number, station frequency, tuned status, muting status

Switchable muting between FM stations eliminates raucous inter-station noise.

Stereo indicator

Technology Features

Quartz frequency synthesis for the most precise , most convenient tuning available at any price

Superior FM s/n of 82 dB in mono, 77 dB in stereo

Lithium batteries maintain preset station memory

Detachable AM ferrite bar antenna can be located for optimum reception

specifications

FM Station

Useable Sensitivity (Mono):  10,3 dBf (1,8 µV )

50 dB Quieting Sensitivity

Mono: 16,1 dBf (3,5 µV )

Stereo :  38,3 dBf (45 µV )

Signal-to-Noise-Ratio: 

Mono :  82 dB

Stereo :  77 dB

Total harmonic Distortion: at 1 kHz

Mono :  0,15%

Stereo :  0,3%

Frequency Response:  30 Hz - 15,000 Hz +0,5 dB -2,0 dB

Stereo Separation:  45 dB at 1 kHz

Alternate Channel Selectivity (400 Hz):  65 dB

Capture Ratio:  1,0 dB

AM Suppression:  54 dB

Image Rejection:  50 dB

Spurious Response:  70 dB

IF Response:  90 dB

RF Intermodulation (IHF):  60 dB

Muting/Tuning Threshold:  25 dBf

AM Section

Quieting Sensitivity:  Detachable antenna :  50 µV/m

Signal-to-Noise-Ratio:  54 dB at 50 mV/m

Total harmonic Distortion:  0,3% at 50 mV/m, 400 Hz

Selectivity (10 kHz):  38 dB

Image Rejection:  45 dB

General

Output Level:  550 mV

Output Impedance:  3,3 k Ω 

Power Requirements:  AC 120 Volts, 50 Hz

Power Consumption:  8 Watts

Dimensions (W x H x D):  430 x 55 x 285 mm (17" x 2-1/4" x 11-1/8")

Weight (net):  2,8 kg (6 lb 3 oz)

 

JVC VN-700 amplifier

JVC VN-700

140 Watt Integrated Amplifier with 5-Zone S.E.A. 

Despite its greater number of controls than other amplifiers in its class, the VN-700's front panel is not at all bulky and has a modern and pleasing aesthetic; the knobs and switches are rationally arranged, and the volume control is easily identifiable due to its size and position. The controls for the input selector, listening mode, and monitor inputs are very convenient, but the knobs for the multiple

tone control (<• SEA») are a bit too small. Its potentiometers operate in steps

to more easily set the boost or cut level. The subsonic filter is truly effective, quickly cutting the response curve below 18 Hz. The ability to engage the "SEA" equalizer even while recording and to output recordings in both directions is very useful.

The rear panel features two PHONO inputs (one of which has adjustable sensitivity and impedance), two TAPE inputs, and three auxiliary inputs, one

also with adjustable sensitivity. Essential for a system upgrade from stereo to quadraphonic are the duplicated outputs of the preamplifier section and connections for a quadraphonic decoder. The sockets are all jacks, with the addition of two DIN connectors that duplicate the tape inputs.

There are four Hitachi power transistors. The final stage is fully complementary symmetry with a power supply symmetrical with respect to ground and therefore without an output capacitor.Cooling is provided by a traditional

metal radiator. A relay disconnects the speaker connection.

The VN-700's internal layout is very tidy. At the top center is the printed circuit board for the "SEA," the long-throw input switch mounted near the rear panel, both for space reasons and to reduce the length of the wiring, which compromises the device's signal-to-noise ratio. All the connecting cables pass under the chassis' motherboard and are bundled. The construction is typical of Japanese amplifiers. The mounting brackets on which the circuit boards are mounted vertically are visible. This is an ideal solution for calibration or repairs.

Specifications

Type:  Solid State Stereo Integrated Amplifier

Semiconductors:  32 Transistors; 14 Diodes;

Inputs: Phono 1 & 2;Aux 1, 2 & 3; Tape-Play 1 & 2; Main IN; 4-Channel Rear In

Outputs: Tape Rec 1 & 2; 2 x Pre-Out; 4-channel Rear Out; Speakers System 1 & 2; Headphones

DIN Socket:  Tape 1, Tape 2

Front Panel Controls: Phono 1 Cartridge Load select & Level adjust

Power Amplifier Section

IHF Dynamic Power:  

110 W (55 + 55 W) at 8 ohm load

140 W (70 + 70 W) at 4 ohm load

Continuous Power RMS

80 W (40 W + 40 W) at 8 ohm load one channel driven

100 W (50 W  + 50 W) at 4 ohm load one channel driven

70 W (35 W + 35 W) at 8 ohm load both channel driven

80 W (40 W + 405 W) at 4 ohm load both channel driven

Power Bandwidth

10 Hz - 23 kHz (8 ohm load one channel criven, output power) 35 W THD 0,25%

25 Hz - 20 kHz (8 ohm load both channel driven, output power) 35 W THD 0,25%

THD 0,05% at rated power (1 kHz)

Intermodulation Distortion: 0,4% at rated power 0,1% at 1 W

fr 3 Hz - 450 kHz (-3 dB) at 1 W

Damping Factor:  50 Hz at 8 ohm load

Matching Load Impedance:  4 - 16 ohm

Input Sensitivity for Rated Power:  1 V

Preamplifier Section

FR 20 Hz - 50 kHz +_0,5 dB

S.E.A. Controls

Center Frequency :  40; 250; 1,000; 5,000; 15,000 Hz

Control Range:  =-12 dB

Input Sensitivity For Rated Power:  

Phono :  2,5 mV

Aux :  200 mV

Tape Playback :  200 mV

s/n Ratio

Phono :  55 dB

Aux :  82 dB

Equalizer:  RIAA (Mag) =-0,5 dB

Phono Overload:  240 mV (p-p) at 1 kHz; 170 mV RMS

Recording Out Level

PIN Jack :  30 mV

DIN Jack :  180 mV

Filters

Subsonic :  18 Hz 12 dB/oct

High :  9 kHz -12 dB/oct

Muting:  -20 dB

Power requirement:  110, 120, 220, 240 V 50/60 Hz

Power Consumption:  150 W

Dimensions whd 16-5/8" x 5-3/8" x 12-1/2"

Weight:  22 lbs

JVC VT-700 tuner

 JVC VT-700 Solid State FM/AM Tuner

Ultra-sensitive FM section

signal strength and center-of-channel tuning meters

Fixed level and variable outputs

High blend and muting controls

Discrete 4-channal FM ready by FM DET Out jack

Specifications 

Type: FM/AM Stereo tuner

Semiconductors:  24 Transistors; 27 Diodes; 1 FET; 2 ICs ; 4 Ceramic Filter (8 elements)

FM Tuner Section

Frequency Range:  88 - 108 MHz

IF Amplifier Stage:  4 Transistors and 2 ICs

sensitivity:  1,7 µV  (IHF)

Signal-to-Noise-Ratio: better than 65 dB

Capture Ratio:  less than 0,8 dB 

Selectivity:  Better than 70 dB 

Image Rejection:  Better than 90 dB 

IF Rejection:  Better than 90 dB 

Spurious Rejection:  Better than 100 dB 

AM Suppression Ratio:  Better than 100 dB 

Frequency Response: 20 - 15,000 Hz (±1 dB)

Total harmonic Distortion: less than 0,3% (98 MHz)

Separations at 1 kHz :  Better than 38 dB 

Separation at 10 kHz :  Better than 25 dB 

SCA Suppression Ratio:  -50 dB 

Frequency Drift:  less than 0,015%

Output Level

Variable :  0 - 1,0 V

Fixed :  0,4V ±1 dB 

Antenna  Terminals:  75 Ω  (Unbalanced); 300 Ω  (balanced)

Controls:  FM/AM tuner meter; FM fine tuning meter; FM stereo indicator; Muting; Level control; MPX hi-blend

AM Tuner Section

Frequency Range:  535 - 1605 kHz 

IF Amplifier Stage:  2 stages (with 1 CF)

sensitivity:  15 µV  (S/N=20 dB)

Selectivity:  25 dB  (±10 kHz)

Image rejection:  Better than 45 db

Total harmonic Distortion:  1,5%

Signal-to-Noise-Ratio:  Better than 50 dB 

Output Level

Variable :  0 - 1,0 V

Fixed :  0,4V ±1 dB 

Antenna Terminals:  External antenna terminal; Ferrite bar antenna

Meter:  Tuning meter

Power Requirements:  100, 120, 220, 240 V 50/60 Hz

Power Consumption:  20 W

Power Outlet:  Unswitched

Dimension s (W x H x D):  16-5/8" x 5-3/8" x 12-1/2"

Weight:  16,5 lbs

Dual CS 741Q turntable

Dual 741Q The finest turntable Dual has ever made. Handsome new design provides ideal integration of form and function.

There is always a special attitude at Dual about the turntable that represents the most advanced thinking and accomplishment of Dual's designers and engineers.

The materials, the care in manufacturing and quality control must exemplify all that has made Dual precision and reliability so highly regarded throughout the world. And in every aspect of performance, this turntable must set the standard by which other fine turntables are judged. Even more, it must make a significant contribution to the art of record playback.

Now, as never before, Dual's finest turntable , the 741Q , expresses this attitude to perfection.

Hydrodynamic suspension system.

radically new design floats the tonearm, motor and platter as one unit on four cylinders, each filled with special viscous fluid. This system absorbs virtually all spurious energy originating in sound waves as well as vibrations caused by footfalls or other movements in the room.

Turnable acoustic isolator

Each isolator is adjustable to provide maximum protection from either acoustic feedback or external shock

Turntable anti-resonance filter housed in counter-balance.

Matches ULM tonearm to mass and compliance of any cartridge. Resonant amplitude can be reduced as much as 50 percent, depending on cartridge. Feedback is reduced, tracking ability improved and the sound is appreciably cleaner.

Effective  Dual's exclusive suspension systems as demonstrated in comparative shock tests>

Note difference in recovery times after each turntable was subjected to vertical shock

Highly-respected European turntable considered virtually immune to vibration

Well-known Japanese turntable with damped sub-chassis

Dual turntable damped by Hydrodynamic system and turntable acoustic isolators.

New flush-mount dust cover.

Unique hinge design allows cover to be opened and closed without extending beyond rear of turntable. This allows the unit to be positioned close to rear wall. Also adjustable hinge tension holds cover open at any angle.

Quartz PLL direct drive with LED speed read-outs.

Exact pitch-control deviations from standard speeds are shown throughout 12 percent range. Pitch-control settings remain in memory for comparisons with quartz-controlled 33 rpm and 45 rpm speeds.

Specifications

Operation:  Manual Start and Stop; Automatic Stop; Damped cue-control; Continuous repeat; Pitch control 12 % range

Tonearm: Four point gimbal, and anti-resonance filter

Effective Length:  8-3/4 inch

Bearing Friction :  0,007 grams

Total Effective Mass with ULM Cartridge:  8 grams

Cartridge Range:  2 - 9 grams

Minimum Tracking Force:  0,25 grams

Anti-skating System Calibrated: for all styli

Motor Type:  Quartz PLL

Drive System:  Direct drive

Platter Size:  12"

Illuminated Strobe - Yes

Rumble:  better than 80 dB (weighted DIN B)

Wow and Flutter:  ±0,015% (WRMS)

Dimensions  Chassis:  17-1/2" x 15-3/16" x 2-3/16"

Height with Cover:  5-1/12"

ULM Cartridge Series

Model:  ULM 60

Stylus Type:  Elliptical

Tracking Force:  0,75 - 1,50 grams

Frequency Response:  10 Hz - 30 kHz

FIM Distortion:  less than 0,8%

Output Voltage at 1000 Hz per 5 cm/sec:  3 mV

Compliance:  30 m/mN

Channel Separation:  better than 28 dB (at 1 kHz)

Net Weight:  2,5 grams

 

DBX 110 control

 DBX 110 - Subharmonic Synthesizer

The Model 110 is a unique product that can solve one frequency response problem common to all stereo systems. Right now, your system can't produce bass frequencies much below 50 Hz, simply because that's the limit of most records, tapes and FM signals. That means you don't get the deepest bass notes, the kind you feel as well as hear. The Model 110 corrects that problem. Technically, what the 110 does is easily understood. It samples the low frequency fundamentals of your music. Then it passes these signals through while simultaneously reproducing them a full octave lower. both signals are then mixed back in at relative levels that you control.

Musically, what the 110 does is extraordinary. it re-creates the natural subharmonics of the original sound, making your room vibrate with a depth of bass you've never heard before - or felt - except in a live performance.

Specifications 

Dynamic Range (Peak signal to weighted background noise):  100 dB

Input Impedance :  47 k Ω 

Input Level (Nominal):  300 mV

Input Level (Maximum):  7 V RMS

Output Impedance (Designed to drive 5 k Ω  or greater):  470 Ω 

output Level (Maximum):  20 Hz to 20 kHz):  7 V RMS

Frequency Response:  20 Hz to 20 kHz ±1 dB

Equivalent Input Noise (Unweighted, 20 kHz bandwidth, referenced to 1 V):  -85 dBV

Total harmonic Distortion:  0,1% (Typical, main signal channel)

Intermodulation Distortion (SMPTE):  0,15% Main signal channel

Power Line Requirement:  117 V AC, 50 Hz to 60 Hz

Power Line  Consumption:  10 W

dimensions (W x H x D):  186 x 95 x 263 mm (7-5/16" x 3-3/4" x 10-3/8")

Weight:  2,26 kg (5 lbs , shipping)

AKG K-45 headphones

 

 AKG K-45

Excellent choice whenever a rugged headphone is preferred which is both high in performance and also economical to purchase. its vented earpieces are furnished with large dynamic moving coil transducers, and cardan-coupled on a flexi-plastic headband. it is supra-aural , with acoustical foam earpads. true "open air" model. Provides quality reproduction.

An economy headphone, in price only. This High-performance model is supra-aural and is a true "open-air" design. Despite being inexpensive, it is equipped with larger transducers such as those found in higher-end models. It provides excellent high-quality audio reproduction.

Specifications 

Operating Principle:  Dynamic Moving coil

frequency Range:  30 - 18,000 Hz

Nominal Sound Pressure Level (at 1,000 Hz):  94 dB

Nominal Impedance:  200 Ω  per System

Maximum Input:  6,3 V

Total harmonic Distortion: at 95 dB SPL:  0,9%

Weight:  95 g

Cable Length:  2,5 m (8 ft.) 1/4" phono plug

AKG K-2 headphones

 AKG K-2

Medium-size stereo headphones features wide frequency listening range via large dynamic moving coil transducers to produce "you-are-there" realism to your favourite programs or records. Supra-aural design, vertical earpiece adjustment plus cardon-coupling, fits ears with minimum contact pressure affording user hours of tireless, fabulous audio.

Uncompromising in quality construction with found in most high-end competitive headphones. Microphone derived transducers effectively reproduce sound with a realism equal to original performances. In addition, comfort features makes long wear unnoticed. Desirable, critical choice.

Specifications 

Operating Principle:  Dynamic Moving coil

Frequency Range:  30 - 18,000 Hz

Nominal Sound Pressure Level (at 1,000 Hz):  92 dB

Nominal Impedance:  200 Ω  per System

Maximum Input:  6,3 V

Total harmonic Distortion: at 95 dB SPL:  1,0 %

Weight:  90 g (3,2 oz) without cable

Cable Length:  2,5 m (8 ft.) 1/4" phono plug

Tandberg 9100X reel-to-reel

 Tandberg 9100X Stereo

Features:

3 motors

Electronic controls with 14 integrated circuits (Ics)

Mixing in stereo

Balanced microphone inputs

3 speeds, 4 heads

Tandberg Crossfield recording technique

Facilities for echo, sound-on-sound, editing and A – and B-test of recording

Professional mechanics

Remote control facility

Front outlet for stereo headphones

Can be used with separate hi-fi stereo amplifier

Electronics

The control system in the 9100X is an electronic brain with 14 high level logic, integrated circuits (IC’s). electronics has replaced mechanics, and each control is carried out firmly and precisely by a light touch on the keyboard 9100X “thinks for itself”. The electronics and the tape-tensioning mechanism always ensure that the tape is transported correctly. Connected to a remote control system (an accessory) all logic functions can be controlled from a distance of 5 meters. 9100X has all the qualities that Tandberg tape recorder are renowned for; echo, recording with sound-on-sound, A- and B-test of programmes. The B-test is a particularly important feature because it facilities close control of recording quality. There are 4 input controls, 2 for microphone inputs and 2 for line input (radio with record player or another tape recorder), and sound sources in stereo or mono. The microphone inputs in 9100X are balanced. This means that unwanted electrical noise from e. g. vacuum cleaners or foodmixers does not affect the recording.

Tandberg Crossfield Recording Technique

This is a special recording technique found only in Tandberg tape recorders. With this technique the tape is magnetized right through and is therefore capable of receiving very strong signals and reproducing them as crystal clear sound without distortion. The Tandberg Crossfield recording technique provides a safety margin against overload, particularly in the highest tone register which is the most critical region when recording.

Peak Level  Meters

The level meters are in the professional class. They always shows the strongest part of the sound – exactly that part which becomes distorted if the magnetic tape is overloaded. With the Tandberg Crossfield recording technique and the peak level meters you can fully exploit a tape’s qualities.

Photo-electric Stop

The forward drive stops automatically at the end of the tape or if the tape is transparent

Monitoring During Fast Winding/Editing

This functions (Edit/Cue) facilities listening to the tape during fast winding or rewinding. Consequently it is easy to find your way on the tape and to edit the recordings

Professional Mechanics

Correct reproduction demands high accuracy in the design and construction of the tape path. Therefore the complete tape guidance system in the 9100X is mounted on a stable base plate which ensures that the tape is correctly guided passed the magnetic heads. There are 3 motors – 2 for winding in either direction and one for forward drive. The winding motors work also as mechanical breakes. Together with the closed loop and the magnetic controlled friction breakes they ensure gentle treatment of the tape.

Specification

9100X is adjusted for Tandberg Tape or equivalent tape of the LH-type.

The largest reel diameter is 7” (18 cm).

Tape Speed:  7-1/2; 3-3/4; 1-7/8 ips

Speed Tolerance:  0,7%

Speed Variation

7-1/2 ips : 0,06% (WRMS) 0,09% (Peak value DIN 45511)

3-3/4 ips : 0,11% (WRMS) 0,15% (Peak value DIN 45511)

1-7/8 ips : 0,21% (WRMS) 0,3% (Peak value DIN 45511)

Frequency Range (DIN 45511)

7-1/2 ips : 30 to 26,000 Hz

3-3/4 ips : 30 to 20,000 Hz

1-7/8 ips :  30 to 11,000 Hz

Amplifier Mode :  30 to 22,000 Hz ±2 dB

Signal-to-Noise-Ratio:  at ( at highest speed, measured with Tandberg Tape or equivalent LH-tape)

IEC A-curve, 3% Distortion:  65 dB (4-track); 67 dB (2-track)

IEC Linear RMS , 3% Distortion :  58 dB (4-track); 58 dB (2-track)

DIN 45511(Weighted):  60 dB (4-track); 62 dB (2-track)

DIN 45511 (Unweighted) :  56 dB (4-track); 56 dB (2-track)

Crosstalk Attenuation (at 1000 Hz):  Better than 60 dB (MONO); Better than 50 dB (STEREO)

Distortion maximum

From Recording Amplifier at 0 dB :  0,2 %

From Replay Amplifier :  0,2% at 1,5 V

From Tape at 0 dB Recording Level :  3% max.

Inputs (Each channel has the following inputs)

Radio Input :  Impedance 50 k Ω  / Sensitivity 8 mV to 1,2 V

Line Input :  Impedance 200 Ω  / Sensitivity 30 mV to 5 V

MIC :  Balanced inputs for dynamic microphone with impedance of 200 to 700 Ω  / Sensitivity 230 UV to 35 UV at 400 Hz and 200 ohm microphone impedance

Outputs (Each channel has the following outputs)

Radio Output :  Impedance 5 k Ω  / Voltage 0,75 V unloaded

Line Output :  Minimum Load Impedance 150 Ω  / Voltage 1,5 V unloaded

Headphones Output :  Minimum Load Impedance 8 Ω  / Power 5 mW

Equipped  with reel locks (for use in vertical position)

Delivered as 2-track or 4-track version

Wood – Teak or palisander (Oak or request)

Main Voltage:  240/230/115 V 50 Hz  (60 Hz on request)

Power Consumption:  96 watts

Dimensions (W x H x D):  400 x 180 x 410 mm (15-3/4” x 7-1/4” x 16-1/8”)

Weight:  15,5 kg (34,5 lbs)

Garrard DD-132 turntable

 The Garrard DD132

Direct drive, single play turntables with Fail-Safe Drive System, low-mass tracking and Delglide automation

The Garrard name in turntables is legendary. With the new direct drive, single play DD132, Garrard introduces two models that reflect the achievements of generations of turntable engineering. Both models are precise expressions of the critical elements that determine exquisite reproduction of music.

Critical Element – The Drive System

It’s called the Fail-Safe Drive System, and for good reason. From its motor, through its speed monitoring, it functions to eliminate the distortions caused by speed irregularities before they can reach the listener’s ear.

The motor is the heart of any direct drive turntable. The DD132 (and DD131) incorporate a DC servo-controlled motor which revolves at the same speed as the platter. But that’s only the first step.

The new Garrard motor an end to cogging

The new direct drive motor, designed and built by Garrard, is brushless coreless and slotless. Most important, it puts an end to the problem which plagues most direct drive motors cogging. Cogging lakes place because the space or “slots” between the magnetic poles of a motor exert a different force than the poles themselves. The result is erratic rotation and rumble. This new Garrard motor ends cogging. It exerts a constant magnetic force during the entire 360(O) rotation of the platter.

Time-Integral-Velocity monitoring

Monitoring of the motor is accomplished by a state-of-the-art speed detection system we call Time-Integral-Velocity Simply stated, a signal is generated which reveals actual rotational speed so that it can be read by correction circuitry.

“Hall effect” circuitry

Final assurance of rotational speed is accomplished by “Hall effect” circuitry which makes instant correction of any irregularity whether caused by stylus drag, cleaning devices or other factors which threaten to interfere with the speed you’ve chosen. Summation Garrard’s Fail-Safe Drive System provides a cogless motor, constant monitoring and instant correction.

The Tonearm

It is unfortunate and somewhat surprising that so many manufacturers still ignore the vital role of the tonearm in determining performance. Garrard engineering has paid special attention to the tonearm. Both the DD132 (and DD131) boast the same tonearm/headshell combination. Tonearm and headshell together weight just 12 grams. Thus you can derive the full potential of any cartridge including the new, low-mass, high compliance types that are finding increasing favor among audiophiles and music lovers. Julian Hirsch the noted reviewer; said that the Garrard tonerm is compatible with any cartridge presently manufactured , no matter how compliant it may be.

Silent Automation

The new Garrard direct drive motor and ultra-light tonearm in the DD132 (and DD131) are integrated with the exceptionally silent smooth and dependable Delglide system. The reviews tell the story. Stereo magazine “everything worked perfectly, and with impressive silence and smoothness”. Radio Electronics “ one the smoothest changing cycles we have ever seen”. Audio magazine  “ very quiet in operation, should give years of trouble-free service.”

Summation

The DD132 (and DD131) direct drive turntables include Garrard’s Fail-Safe Drive System, an ultra-light tonearm with magnesium headshell and an astonishingly silent automatic system. In addition, both units incorporate variable speed control and a stroboscope illuminated by an LED for easy reading even in a brightly lit room.

Design and styling

The controls of both of these turntables are expressions of Garrard’s concern with “human engineering” they are grouped in sensible operating sequence and each control is clearly marked and generously sized for the adult hand.  Their circular(rather than push-button or slide) action allows use of the controls while a record is playing without jarring the tonearm. Either of these turntables can be placed in any room and beautifully integrate with its décor.

The difference

The tonearm of the DD132 will automatically index, lift and the end of play and come back to its rest before shutting off. The DD132 also features repeat play capability. 

Specifications

Operation Mode:  Fully Automatic

Turntable Platter:  Die-cast aluminium

Platter Diameter:  319 mm

Turntable Inertia:  200 kg/cm

Drive System:  DC Direct Drive

Motor:  Slotless with TIV Control

Speeds:  33-1/3 and 45 rpm

Speed  Adjustment:  +_3%

Tonearm Type:  “S” shaped aluminium

Effective Length:  230 mm

Effective Mass less Cartridge:  12 grams

Pivots:  Jewel/Ball

Stylus Force Adjustment:  Isolated calibrated counterbalanced weight

Cue Control:  Viscous damped

Usable Cartridge Weight:  4 – 9 grams

Minimum Tracking Force:  0,75 grams

Optional Cartridge:  Shure M75 ED II

Performance

Wow and Flutter (DIN):  0,06% slow weighted

Rumble:  -50 dB (DIN-A); -70 dB (DIN-B)

Dimensions (W x H x D):  450 x 150 x 365 mm (with cover closed)

Garrard DD-131 turntable

 Direct drive, single play turntables with Fail-Safe Drive System, low-mass tracking and Delglide automation

The Garrard name in turntables is legendary. With the new direct drive, single play DD131 (and DD132), Garrard introduces two models that reflect the achievements of generations of turntable engineering. Both models are precise expressions of the critical elements that determine exquisite reproduction of music.

The Drive System

It’s called the Fail-Safe Drive System, and for good reason. From its motor, through its speed monitoring, it functions to eliminate the distortions caused by speed irregularities before they can reach the listener’s ear.

The motor is the heart of any direct drive turntable. The DD131 incorporate a DC servo-controlled motor which revolves at the same speed as the platter. But that’s only the first step.

Design and styling

The controls of both of these turntables are expressions of Garrard’s concern with “human engineering” they are grouped in sensible operating sequence and each control is clearly marked and generously sized for the adult hand.  Their circular(rather than push-button or slide) action allows use of the controls while a record is playing without jarring the tonearm. Either of these turntables can be placed in any room and beautifully integrate with its décor.

The difference

The DD131 is semi-automatic. The arm lifts at the end of play returns to its rest and the motor shuts itself off.

Specifications

Operation Mode:  Semi  Automatic

Turntable Platter:  Die-cast aluminium

Platter Diameter:  319 mm

Turntable Inertia:  200 kg/cm

Drive System:  DC Direct Drive

Motor:  Slotless with TIV Control

Speeds:  33-1/3 and 45 rpm

Speed  Adjustment:  +_3%

Tonearm Type:  “S” shaped aluminium

Effective Length:  230 mm

Effective Mass less Cartridge:  12 grams

Pivots:  Jewel/Ball

Stylus Force Adjustment:  Isolated calibrated counterbalanced weight

Cue Control:  Viscous damped

Usable Cartridge Weight:  4 – 9 grams

Minimum Tracking Force:  0,75 grams

Optional Cartridge:  Shure M75 ED II

Performance

Wow and Flutter (DIN):  0,06% slow weighted

Rumble:  -50 dB (DIN-A); -70 dB (DIN-B)

Dimensions (W x H x D):  450 x 150 x 365 mm (with cover closed)

Garrard DD-130 turntable

Garrard DD130 

The DD130 is designed for music lovers whose major concern is the fidelity with the music on their records is reproduced. It is a direct-drive, single play, manual turntable with a low mass, professional tonearm. The quality of its elements ensures an exceptionally high level or performance.

The tonearm

Garrard engineers have given special attention to the DD130 tonearm. The critical importance of this element is frequently overlooked by many manufacturers of direct drive turntables

It must be remembered that the tiny stylus, as it traces the groove, must bear the full weight of the tonearm. Clearly a tonearm must be light and ensure that the finest and lightest tracking cartridges can be used with optimum results. The tonearm of the DD130 is tubular and made of an aluminum alloy formulated for lightness and rigidity. The head shell is made of ultra light magnesium. The tonearm and headshell together weight a mere 12 grams. To underscore the assurance of quality reproduction, the tonearm “rides” on jewel bearings. The DD130 will readily track records that are badly warped. Something tonearms of higher mass simply cannot do.

The direct drive motor

The performance of a direct drive turntable rests heavily upon the motor, since the platter is directly attached to the motor shaft. The DD130 boasts a brushless DC motor, operating at low speed which sharply reduces mechanical vibration. In the DD130, the standard 110 volt, 60 cycle AC is converted to 16 volt DC. Thus the motor is immune to the normal fluctuations in the voltage or frequency of house hold current.

Servo electronic Control

The design of the DD130 motor, results in smoother rotation than is possible with more conventional motors. To ensure that speed is maintained precisely an automatic speed controlled is incorporated. Rotor speed is converted into voltage. The faster the speed, the higher the voltage. This voltage is monitored by a servo circuit which senses the most minute variation from correct voltage. It then automatically alters the amount of current, correcting variations instantaneously.

Variable speed control

Are your ears sensitive enough to detect an off-pitch recording? By means of a variable pitch control, you can alter the speed of the platter to correct the faulty recording. An easy-to-read, LED-illuminated stroboscope provides visual confirmation when you want to go back to normal accurate speed.

More features

The four-pound, die-cast aluminum platter assures clean-level rotation. A full 12 inches in diameter, it is dynamically balanced. The DD130 features a calibrated (for elliptical and CD4 styli) anti-skate control. This control enables the listener to neutralize the force which tends to press the stylus against the inner wall of the groove while a record is spinning. The precise anti-skate control of the DD130 will keep the stylus centered in the groove.

The controls of the DD130 are clearly marked strategically positioned and easily operated. It is mounted on a glass-filled, polyester, “Slim-Line” base. The base stands on shock-absorbent feet that insulate the DD130 from external vibration. A sleek, moulded dust cover is attached to the base via special friction-fit hinges.

Finally, the appearance of the DD130 complements its performance. Its colors were chosen to blend gracefully with any décor. Performance, appearance, price and reliability. The DD130 is a manual turntable for the listener who is more than casual about music.

Specifications

Operation Mode:  Manual

Turntable Platter:  Die-cast aluminium

Platter Diameter:  319 mm

Turntable Inertia:  200 kg/cm

Drive System:  DC Direct Drive

Motor:  Multi Pole

Speeds:  33-1/3 and 45 rpm

Speed  Adjustment:  +_3%

Tonearm Type:  “S” shaped aluminium

Effective Length:  230 mm

Effective Mass less Cartridge:  12 grams

Pivots:  Jewel/Ball

Stylus Force Adjustment:  Isolated calibrated counterbalanced weight

Cue Control:  Viscous damped

Usable Cartridge Weight:  4 – 9 grams

Minimum Tracking Force:  0,75 grams

Optional Cartridge:  Shure M75 ED II

Performance

Wow and Flutter (DIN):  0,06% slow weighted

Rumble:  -50 dB (DIN-A); -70 dB (DIN-B)

Dimensions (W x H x D):  450 x 150 x 365 mm (with cover closed)

 

Garrard GT-20 turntable

 The fact that the belt-driven manual turntable GT20 is the most affordable in our series may have led you to believe that we have cut corners on traditional Garrard quality.

They couldn't have been further from the truth. Consider, first of all, that it has the exact same ultra-low-mass S-shaped tonearm as our most expensive direct-drive model, and the same precisely calibrated anti-skating device to eliminate unwanted centrifugal forces.

And the same jewel-encrusted, ultra-fine pivot bearings that virtually eliminate friction, allowing you to use the highest quality cartridge systems. Consider also the heavy, die-cast aluminum platter, which is dynamically balanced for exceptionally smooth operation. And finally, consider the exquisite design, which is on par with the other models in this series.

Specifications

Operation Mode:  Manual

Turntable Platter:  Die-cast aluminium

Platter Diameter:  311 mm

Turntable Inertia:  160 kg/cm

Drive System:  Flexible belt

Motor:  4-pole synchronous

Speeds:  33-1/3 and 45 rpm

Tonearm Type:  “S” shaped aluminium

Effective Length:  230 mm

Effective Mass less Cartridge:  12 grams

Pivots:  Jewel/Ball

Stylus Force Adjustment:  Isolated calibrated counterbalanced weight

Cue Control:  Viscous damped

Usable Cartridge Weight:  4 – 9 grams

Minimum Tracking Force:  0,75 grams

Optional Cartridge:  Shure M75 ED II

Performance

Wow and Flutter (DIN):  0,12% slow weighted

Rumble:  -43 dB (DIN-A); -63 dB  (DIN-B)

Dimensions (W x H x D):  450 x 150 x 365 mm (with cover closed)

Luxman PX-101 turntable

 Luxman PX-101

Fully Automatic Tangential Tracking Turntable

The PX-101 plays back records exactly as they were cut; in a straight line. Essentially providing zero-deviation from the cutting process, as well as zero tracking error and zero tracking distortion during playback.

The advantages of tangential tracking are immediately evident. The music sounds “cleaner”, with better separation between channels, better separation of instruments within the orchestra, and a far more vivid recreation of the “soundstage”.

With the PX-101, wow and flutter is inaudible. Rumble, non-existent. Speed of 33-1/3 and 45 RPM, with a ±3% deviation available at will. Both the tonearm and headshell are constructed of improved aluminum alloy for resonance-control and damping. Fully automatic, direct-drive, it requires but a touch to operate. A built-in circuit of the PX-101 will automatically place your accompanying Luxman KX-101 or KX-102 cassette deck in the pause mode when the record you’re recording has reached the end of play. And the PX-101 is also responsive to the Infrared Wireles Remote Control system of the new Luxman RX-103 Receiver.

Features:

Tangential Tracking System – The straight tone arm of the PX-101 tracks in a straight line from the outer grooves to the inner grooves of a disc, exactly as the disc was cut. This virtually eliminates tracking errors and inside force problems; giving better stereo separation, and a more vivid recreation of the recording “soundstage”. The high performance tonearm is driven by a separate tonearm control motor, which is superior in its construction of computerized control circuits and improved stainless steel wire.

Optical Sensing Fully Automatic Function – Fully automatic, smooth, accurate response is ensured thanks to the exclusive integrated Circuit TIP and Optical Sensing Circuit. (Detection of the auto return point occurs without side-force.) Press the Start/Cut button after selecting the speed. Automatic lead in and lead out of the tonearm is activated by Feather-Touch Control. Interruption of operation during play is made easy by pressing the Start/Cut button. The tonearm automatically returns to the armrest and shuts off the motor. In the “Repeat” position, playback of the same record is endlessly repeated.

Auto Disc Pause – When activated, a built-in circuit of the PX-101 automatically places your accompanying KX-101 or KX-102 cassette deck  in the pause mode from the record mode, when the record being taped reaches the end of play. Allows you to leave the system unattended while taping.

Remote Control Capability – In combination with the RX-103 Receiver, the PX-101 Turntable may be controlled through the RX-103’s infrared wireless Remote Control. The Remote Control activates the turnable’s play, cut, cue up, and cue down functions.

Electrical Cueing and Arm Speed Switches – A touch of the Cueing Switch controls the tonearm, up and down. The Arm Speed Switch allows you to move the tonearm into position over the exact cur desired on the disc. A slight touch and the arm moves slowly; a further touch and the arm moves faster, either toward the inside or outside of the disc.

External Control Board – The controls are located outside of the dust cover, to protect discs while in play.

Detachable Head Shell – Cartridges are easy to install. The PX-101 accepts a variety of cartridges and other standard universal head shells.

Mirror Reflex Stroboscope – The unique Stroboscope system of mirror-reflection makes adjustments on accurate feed rotation easy.

Pitch Control – The speed can be adjusted by tuning pitch control up to ±3%

Specifications

Drive System:  Direct drive system

Speeds:  33-1/3 and 45 rpm

Pitch Control: ±3%

Speed Indication:  Stroboscope

Platter:  Aluminum diecast

Platter Diameter:  300 mm (12 “)

s/n (DIN-B):  70 dB 

Wow and Flutter (WRMS):  0,045%

Tonearm:  Improved Aluminum

Effective Length:  165 mm

Tracking:  Tangential

Cartridge Weight:  4 – 8 g

Stylus Pressure:  0 – 3 g

Headshell:  Detachable, improved aluminum

Arm Lifter:  Touch switch control

Auto Function:  Fully automatic, Start/Cut, Auto Repeat Switch

Dimensions (W x H x D):  440 x 115 x 405 mm (17,6” x 4,6” x 16,2”)

Weight (Net):  7,4 kg (16,3 lbs)

Sony STR-VX250 receiver

 Sony Direct Access Receiver

Key Selling Feature: Direct Access

Within the past years, the accuracy of quartz frequency synthesis tuning has become increasingly available in popular priced receivers. It’s available in this Sony. However, this receivers offers another feature which is not available on other receivers – the convenience of Direct Access tuning. With this system, your customers can directly “key-in” their station frequencies then memorize them by entering the station into the presets.

Key Demonstration

Ask your customer for the frequency of his favourite station. If it’s FM, have him press the FM button first, then, have him enter the numbers on the receiver keypad. If, for instance, the station is 102,70 FM, he should press FM, then one-zero-two-seven-zero. A final zero needs to be added to complete the access. Then perform an additional demo, show the customer how the receiver can find stations without complete information. Press one-zero-two- and then press the “+” button. The receiver will scan up and find the station. To complete the demo, enter this station as a memory preset. After the station is tuned, press memory, then key marked1. This will preset the station.

Convenience Features

Direct Access – design for easy convenience tuning

8 station random access – presets for fast recall favourite stations

Station card – insert to mark preset stations

Auto Tuning – between FM stations

Fluorescent display – indicates station frequency and function

Tape Monitor

Memory backup system – retains memory settings – even it the recover is unplugged

Speaker Switch: A, B, A&B, Off

Technology Features

Quartz Frequency Synthesis – provides the most accurate, most convenient tuning available

Specifications

Amplifier Section

Continuous Power Output (RMS)

25 watts per channel, both channels driven into 8 Ω  from 40 Hz to 20 kHz, at no more than 0,8% Total Harmonic Distortion.

20 watts per channel, both channels driven into 4 Ω  from 20 Hz to 20 kHz, at no more than 0,08% Total Harmonic Distortion.

Total Harmonic Distortion

0,08% from 20 Hz to 20 kHz , 20 watts , 8 Ω

Intermodulation Distortion

0,08% (60 Hz : 7 kHz = 4:1) , 20 watts , 8 Ω

Damping Factor:  30

Frequency Response

Phono : RIAA standard curve +0,5 dB -0,5 dB

Tape, Aux :  10 Hz - 50,000 Hz -3 dB

Input Sensitivity/Impedance

Phono:  2,5 mV/ 50 k Ω

Tape, Aux :  150 mV/50 k Ω

Signal-to-Noise Ratio

Phono :  72 dB (IHF-A); 76 dB (new IHF) at 2,5 mV

Tape, Aux :  94 dB (IHF-A); 74 dB (new IHF) at 150 mV

Speaker Impedance

8 - 16 Ω  A or B

8 - 16 Ω  A and B

Tuner Section

Usable Sensitivity

Mono :  11,2 dBf (2,0 µV)

50 dB Quieting Sensitivity:

Mono :  17,3 dBf (4,0 µV)

Stereo :  38,3 dBf (45 µV)

Signal-to-Noise Ratio

Mono :  75 dB

Stereo :  70 dB

Total Harmonic Distortion at 1 kHz

Mono :  0,2%

Stereo :  0,3%

Alternate Channel Selectivity, 400 kHz :  60 dB

Frequency Response:  30 Hz - 15,000 Hz +0,5 dB -2 dB

Stereo Separation:  45 dB at 1 kHz

AM Suppression:  54 dB

AM Sensitivity:  300 µV/m (built-in antenna)

AM Signal-to-Noise Ratio:  54 dB at 50 µV/m

AM Selectivity:  40 dB

General

Power Supply:  AC 120 V, 220 - 240 V, 50/60 Hz

Power Consumption:  65 watts (UL)

Power Outlets:  100 Watts switched; 100 Watts unswitched

Dimensions (W x H x D):  430 x 105 x 305 mm (17" x 4-1/4" x 12-1/8")

Weight:  5,6 kg (12 lbs 5 oz)

Supplied Accessories:  FM ribbon antenna; Memory system batteries “AA” x 2

Dual 1229Q turntable

Motor and Pulley

Power for the turntable platter and the changing mechanism is supplied by a four—pole Dual continuous pole synchronous motor suspended by radially located elastic mounts and having a very small stray magnetic field and little vibration. The speed of the motor is independent of line voltage, temperature or load variations. Speed is dependent on, and proportional to power—line frequency. The motor is adapted to 50 or 60 cycle (Hz) power—line frequencies by the correct choice of motor pulley.

The motor pulley is fastened to the motor shaft by a setscrew. When you change pulleys, be sure that the new pulley is set at the correct height The turntable platter is driven by the idler wheel, which, to prevent damage to its friction surfaces, is automatically disengaged when the unit is shut off. Setting the turntable speed to 33 1/3, 45 or 78 rpm is done by raising or lowering the idler to bear against the proper step of the motor pulley. Upon actuation of the switch, the switch segment rotates. This causes the lever fitted into a slot on the segment to move vertically. The drive wheel carried on the swinging arm is then lifted off the motor pulley, moved and replaced on the motor pulley step corresponding to the selected speed.

Tonearm and Tonearm Bearing

Tubular tonearm, extra lightweight, torsionally rigid tonearm of the Dual 1229 Q pivots both horizontally and vertically on needle bearings and precision ball bearings in hardened and polished races. lt is suspended in a gimbal arrangement. This keeps friction to a minimum.

Vertical pivot friction = 0.007 gram

Horizontal pivot friction = 0.015 gram

referred to stylus tip

The arm is thus able to track extremely well. The tonearm head is removable. Before setting the tracking force for the cartridge being used, set the tracking—force scale to zero and balance the tonearm. Initial balance is by sliding the counterweight .Final adjustment is by turning the weight. You can balance cartridges with a weight of 1 to 10 grams.

To reduce the effects of small shock impulses on the arm, the counterbalance weight is resiliently mounted on a threaded spindle, and friction—braked to prevent accidental rotation. The cartridge holder will accept all cartridges with international standard mounting centers of 1/2 inch. Stylus force is set by turning a calibrated housing which stresses or releases a spiral spring contained inside. The scale adjustment is calibrated from 0 — 3 p, from 0 — 1.5 p at 1/10 p and from 1.5 — 3 p at 1/4 p intervals. Tracking forces of mors than 3 p can be adjusted with the help of the counter—weight on the tonearm; turning left (counter—clock—wise) increases the tracking force by 1/2 p per complete turn.

Specifications

Drive : Dual synchronous/continuous-pole motor, with radial elastic suspension

Platter:  Non-magnetic,  dynamically balanced

platter Weight:  3,1 kg

Platter Diameter:  305 mm

Platter Speeds:  33-1/2 ; 45 and 78 rpm

Pitch Control:  Range of variation, one semitone (6%), on all three speeds

Stroboscope:  For 33 1/3 and 45 rpm speeds. I Iluminated by special neon glow lamp

Speed Variation:  less than  ± 0.06% according to DIN 45 507

Noise (Measured according to DIN 45 500): 

Rumble 42 dB below standard signal 

Weighted audible rumble 63 dB below standard signal

Tonearm:  Torsionally rigid, extra-long tubular tonearm in four-point gimbal type bearing

Maximum Tracking Error:  0.16°/cm

Tonearm Bearing Friction (referred to stylus tip) 

Vertical : less than  0.007 gram

Horizontal : less than  0.015 gram

Tonearm Head (cartridge holder) :  Removable, accepts all cartridges weighing 2 to 10 grams and having standard 1/2" mounting centers

Current Type:  AC 50 or 60 cycle, with appropriate motor pulleys

Line Voltage:  110/130 V and 220/240 V selector

Power Consumption:  < 10 watt

Current Requirements

approx. 62 mA at 220 V 50 cycle

approx. 115 mA at 110 V 60 cycle

Dimensions (W x H x D): 14-3/4" x 3" x 12"

Weight:  7.2 kg unpacked

 

Dual 1228 turntable

 Motor and Drive

Power for the turntable platter and the changing mechanism is supplied by a four-pole, split-pole synchronous motor suspended by radially located elastic mounts and having a very small stray magnetic field as well as little vibration.

The speed of the motor is independent of line voltage, temperature or load variations. Speed is dependent on, and proportional to, power line frequency. The motor is adapted to 50 or 60 cycle (Hz) power line frequencies by the correct choice of the motor pulley.

The platter is driven by the idler wheel which is automatically disengaged from the motor pulley when the unit is shut off in order to protect its driving surface.

Platter speeds of 33-1/3 and 45 rpm are selected by raising or lowering the idler wheel to the appropriate step on the motor pulley.

Tonearm

The Dual 1228 has a light, torsionally rigid metal tonearm in a gimbal type suspension. The actual support is provided by four hardened and precision-polished steel points resting in precision ball bearings. Tonearm pivot friction is thus reduced to a minimum.

It therefore guarantees exceptionally good tracking characteristics. The tonearm head is removable. Before setting the correct stylus force for the particular cartridge installed in the tonearm head, the tonearm should be balanced with the stylus force setting dial at the zero position. Coarse balancing is accomplished by sliding the counterweight and using setcrew, after which a fine adjustment is made by turning the weight. The counterweight is proportioned so that cartridges with a weight of from 1 to 12 grams can be balanced. For the absorption of vibration and rapid small shocks, the counterweight is coupled to its threaded shaft through an elastic medium, and braked to prevent unintended rotation. The tonearm head accommodates all cartridges that conform to the internationally standard ½ inch mounting centers, and whose weight does not exceed 10 grams. Stylus force is set by turning apring housing, which is equipped with calibrations and which stresses or relaxes a spiral spring inside it. The scale is calibrated for a range of zero to 5 grams, and permits exact settings every 0,5 gram within that range.

Specifications

Drive:  4-pole synchronous motor

Platter:  Non-magnetic

platter Weight:  1,4 kg

Platter Diameter:  270 cm (10,5 inch)

Platter Speeds:  33-1/2 and 45 rpm, automatic tonearm setdown coupled to speed selector

Pitch Control:  Adjustment of approx. 1 semi-tone (6%) at both platter speeds

Speed Check:  with light stroboscope for platter speed of 33-1/3 and 45 rpm adjustable for 50 or 60 Hz

Wow and Flutter:  less than  ±0,00 % rated in accordance with DIN 45 507

Signal-to-Noise-Ratio:  (in accordance with DIN 45 500)

Better than  58 dB at rumble s/n

Better than 39 dB at rumble unweight ted s/n

Tonearm :  Torsion resistant, aluminum tonearm in universal four-point gimbal suspension

Tonearm Bearing Friction

Vertical :  <  0,008 p

Horizontal :  less than 0,18 p

Pick-up Head (Cartridge Holder):  Removable, suitable for acceptance of all cartridges having ½” mounting and a deadweight of 2 – 8 gram (including mounting fixtures)

Stylus Pressure:  Continuously-adjustable from 0 – 10 p, reliable as from 0,5 p stylus pressure

Current Type:  AC 50 or 60 cycle, with appropriate motor pulleys

Line Voltage:  110/130 V and 220/240 V selector

Power Consumption:  less than  10 watt

Current Requirements

approx. 64 mA at 220 V 50 cycle

approx. 115 mA at 110 V 60 cycle

Dimensions (W x H x D):  13" x 5" x 10-3/4"

Weight:  4,3 kg