Denon DP-40F turntable

 Model DP40F is a single play full automatic record player developed from that principle. The basis of this full automatic record player is of course Denon's unique high-performance direct drive record player, with Phase Locked Loop (PLL).

Electronically servo controlled tonearm the unity of accurate servo technology, position selector having unique operational flexibility, and non-contact electronic, anti-skating devices are newly added in a pursuit of the ideal form of this record player system. Easy operation is also accomplished.

Now you are from that tense moment of actually lowering the stylus onto the record disc, the tonearm can be remote-controlled by your will. Full automatic record player created by Denon always have the extra and advanced key compared with other full automatic players.

 

Features

Tonearm can be freely operated at panel with the dust cover closed.

Equipped with the electronically servo controlled tonearm so completely different from any other full automatic record players. You can easily locate the head of a program or repeat playing froms desired part to the end of the record.

All the tonearm motion is electronically controlled so that its operational mode can be changed smoothly and quickly.

Thanks to the non-contact auto-arm mechanism, no-load is applied a the tonearm or turntable

Light stylus force, high-compliance cartridges can be used in full confidence. So gentle with no mechanical sound.

 

Horizontal movement of the tonearm is servo controlled allowing gentle smooth movement.

Anti-skating mechanism eliminates the scating of stylus as it functions after the stylus is lowered onto the record disc. You are now free from the worry of damaging the stylus or record disc.

A damping material inserted in the rear part of the tonearm. The tonearm is hardly affected by the external vibration.

Head shell, the effective combination of the rigid light alloy and special elastic material to supress resonance

Speed servo-control, the unique magnetic record detection system of quick response; Denon Quartz turntable is a combination of the speed servo-control and the phase control by the crystal oscillation.

Wood grain finish elegant cabinet. More than sufficient measures taken again howling.

 

Specifications

Drive System:  Direct-drive by AC servo-motor

Speeds:  33-⅓ and 45 rpm

Wow and Flutter:  0,015% WRMS

Rumble:  less than -75 dB (DIN B)

Rise Time:  less than 1,5 sec, to reach 33-⅓ rpm

Platter:  Casted aluminum, 300 mm diameter

Motor:  AC servo motor

Speed Control System:  Speed servo control by frequency detection system combined with phase control system with reference to the quartz crystal oscillator.

Tonerarm

Type:  S-shaped, static balance type

Automatic Mechanism:  Electronically servo controlled

Effective Lenght:  244 mm

Stylus Force Range:  0 - 2,5 g/rotation; 0,1 g direct reading

Acceptable Weight of Cartridge:  15 - 21 g (including shell)

Headshell:  Impact molded rigid light metal, 9 g (net)

Output Cord:  Low capacitance cord. Approx. 1,2 m

General

Power Requirements: AC 120/200/220/240 V 50/60 Hz

Power Consumption:  18 W

Dimensions (W x H x D):  485 x 437 x 146 mm

Weight:  12 kg

California Audio Labs SLC-1

 California Audio Labs SLC-1 is a new reference standard for Compact Disc throughput to your amplifier and speakers. Eliminating the often substandard high level stages of today's preamps and the inevitable frequency variance problem with potentiometers and so-called line stages, we/ve created the inevitable next wave in Compact Disc performance. The Stereo Line Control One.

World-wide acceptance of the Tempest and Aria established CAL as the manufacturer of choice in producing reference standard CD players. Realizing that many people have made a complete transition from records to compact disc's, and that they want something better than a preamplifier to pass information along to their amplifier and speakers, we began investigating the effects on sonic quality that preamplifiers, potentiometers and gain stages have on compact disc performance.

We established that when you plug your CD player into a preamp your sound is degraded due to the design of the preamp's line stages. That they are designed in lesser preamps, to compensate for the problems that exist in the phono stage, or, in even the best of preamps to compliment the tonal character of the phone stage, thus in using any preamplifier you are altering the quality of information available from CD . Moreover, components used in line stages were inferior, and invariably altered and sonic quality at great cost to dimensionality and tonal character. Also, that the preamp's volume controls often added as much coloration as the gain stages themselves.

To solve these problems we designed the SLC-1. signal is first routed directly to the source selector, the (SLC offers inputs for your CD, VCR, Tape Deck, Tuner and Aux) then to a buffer, optionally bt passing the mode selector and gain stage, then to the volume and balance control to another buffer and out to your amp. Our use of dual buffers gives you the advantage of running as long a set of cables from your CD or other source input as needed to the SLC-1.

California Audio Labs Tercet CD player

 California Audio Labs Tercet is an affordable reference quality compact disc player incorporating Waveshaping. Having established new reference benchmarks in CD performance with our tempest, and Aria, we looked to see whether what we had learned could be applied to an affordable or "budget audiophile" CD player.

The majority of today's compact disc players suffer from one or more of the following; glare, hardness, brightness; lack of dimension; and lack of focus. The design research we do at California Audio Labs helps us to understand why these things occur, and how to eliminate them from interfering with the music. With the Tercet we started with 16 bit, 4x oversampling and added our Waveshaping circuit which shapes and aligns the timing of the digital pulses before they arrive at the Digital to Analog converter. Waveshaping negates the spurious third to seventeenth order harmonics which are what create some of that glare, edge, hardness, and lack of focus and dimension found in other players.

 

Next we designed an audiophile quality analog stage, featuring a large, separate power supply and selected components from Monster Cable, Wima, and Sidereal, in a circuit design that is a leap forward in performance for the budget audiophile. The Tercet's unprecedented smoothness from one end of the frequency extreme to the other, the sense of three-dimensionally and focus is superseded only by out Aria, and Tempest II.

 

Other manufacturers have had varying success with the reduction of the edge and glare in their players, but have yet to achieve as great a sense of "being there". What separates the Tercet from those players, aside from it's superior tonal neutrality, is imaging, that sense of attending a live concert, imaging is the illusion in your 're seeing the separate and distinct positions of the performance and instruments, on the stage. This depth, width, and height is a representation that only the best players can extract from compact discs.

If the players you've auditioned or owned don't achieve this sensation bring some of your favorite discs, and perhaps your own player into your local California Audio Labs  dealer and compare the Tercet. There's a whole new world out there waiting for your ears, and as we know, all the world's a stage.

 

 

California Audio Labs Aria CD player

 Because of the revolutionary transformations in CD performance available through the inclusion of Waveshaping cicuitry, California Audio Labs has been able to design a tube/solid-state hybridCD player offering near-Tempest performance at a greatly reduced price. Called the Aria , this new CD player uses vacuu, tubes in the most critical areas, thus retaining the foremost features which distinguish California Audio Labs CD players from all others.

Using the latest 16-bit, 4x over-sampling technology as the basis for the Aria, California Audio Labs has integrated tube analog circuity with an entirely new design, as with the Tempest II, the circuit operates in Class-A mode and the de-emphasis is passive. Because of the inclusion of the Waveshaping circuitry, the Aria offers improved low level resolution, better imaging capabilities, and greater tonal accuracy.

Other details include separate power supplies for both the analog and digital stages, carefully selected components from leading suppliers like Gold Aero, Sidereal and Tiffany, and the use of high quality linear-crystal cable, for internal wiring. The handsomely-styled Aria comes complete with built-in , full-function remote control.

The Aria will enable even greater numbers of music lovers to experience the benefits of Waveshaping and tube technology . It is the affordable state-of-the-art..

 

 

 

California Audio Labs Tempest II CD player

 When plans for the Tempest were originally conceived, we knew that our player would require more than the mere modification of an existing unit. Having already selected the best available laser transport and digital technology, we integrated them with our optically coupled all-tube analog circuit. The Tempest II's analog stage is a full triode, pure Class-A design, and uses no overall negative feedback, and neither transistors nor integrated circuits contaminate the signal path. Other circuit details included passive deemphasis, the elimination of gain stages for a further reduction of noise-induced distortion, separate power supplies for the digital and analog sections, and a Class-A triode current-to-voltage converter. 

 

Naturally, the Tempest II features our Waveshaping circuitry, thus guaranteeing that the signal fed into the analog stages is as coherent and accurate as possible.

To ensure the reliability of the Tempest II as well as its performance, we have specified only the finest components. Tubes are supplied by Gold Aero, connectors are by Tiffany and internal wiring consists of high quality linear-crystal cable.

 

The combination of novel circuitry, attention to detail, parts specified to laboratory standards, as well as through subjective design input and assessment blend together to form the California Audio Labs Tempest II. It is the CD player of choice for music lovers the world over.

 

 

JVC D-E5 cassette deck

A Full-Feature Mini Metal Cassette Deck

All cassette decks may look aloke to the uninitated. Take a look at JVC's D-E5 cassette deck. Your first impression that it's smaller than the normal deck is correct. It's down-sized to match the other mini components from JVC. Now take a close look and you'll see full-touch controls. Super ANRS, metal tape capability, two-way JVC "Single Music Scan" system LED peak meters (seven LEDs per channel) and more - all features guaranteed to put the D-E5 in a class by itself. Check out the features of this deck more closely. You'll sold on JVC.

Two-Motor Full-Logic Controlled Tape Transport convenience feature.

Tape transport operation is simpler and more reliable because all models are controled by a full-logic circuit contained inn a JVC-developed IIL integrated Injection Logic) IC. Also featured are the Cue and Review functions that operate even in the Record mode. Playback automatically resumes when either the Cue or Review button is released. Naturally, all control buttons are the feather-touch type. The D-E5 utilizes one motor to rotate the capstan, the other to drive the reels. This contributes to the low wow and flutter , 0,17% (DIN 45 500), of this deck.

 JVC SMS (Single Music Scan) System facilitates locating the beginnings of musical programmes.

Use the Rec Mute switch to place blank spaces between songs when recording. During playback, use SMS to scan the tape (forward or backward) to locate these blank spaces. When one is reached, the transport automatically goes into the play mode. Truly a convenience feature that'll make you wonder how you ever got along without it before,

Metal Tape Capability for Extra Wide Dynamic Range.

To fully realize the full dynamic range, low noise capabilities of metal tape, JVC designed its own heads and electronics to accommodate it. The JVC SA (Sen-Alloy) Record/Play head is the result of this research. Improved performance with normal and chrome tapes too, is a side product of our "metal" research.

Super ANRS Noise Reduction for more listenable playback.

The D-E5 utilizes JVC's exclusive Super ANRS noise reduction system to improve the Signal-to-Noise Ratio and increase dynamic range. JVC's ANRS, which is compatible with Dolby-B type, is also available.

7-LED multi-peak indicators assure low-distortion recording

Instead of conventional needle-and-scale VU meters, the D-E5 uses two multi-peak indicators, one for each channel. Seven  LEDs are designed to flash on at threshold levels of -20, -10, -5, 0, +3, +6, and +9 dB. They are responsive and accurate, helping you make recording with low distortion.

 

Specifications

Frequency Response (at -20 VU/0 VU)

Metal Tape :  30 - 16,000 Hz ±3 dB / 30 - 12,500 Hz ±3 dB

SA/Chrome Tape :  30 - 16,000 Hz ±3 dB / 30 - 8,000 Hz ±3 dB

Normal Tape :  30 - 15,000 Hz ±3 dB

Signal-to-Noise Ratio :  60 dB (matal Tape)

Wow and Flutter:  0,17% (DIN 45 500)

Crosstalk:  65 dB (1 kHz)

Channel Separation:  40 dB (1 kHz)

Total Harmonic Distortion

(0 VU, 1 kHz) :  1,0% (Metal)

K3 (0 VU, 1 kHz) :  0,5% (Metal)

Heads:

Record/Playback :  SA (Sen-Alloy) head

Erase :  Two-Gap Ferrite Head

Motors:  Electronic Governor DC Motor ; DC motor

Fast Forward/ rewind Time:  90 sec C-60 Cassette

Input Sensitivity/Impedance

Mike x 2 :  0,2 mV/600 - 10 k Ω

Line IN x 2 :  80 mV/100 k Ω

Output Level/Impedance

Line Out x 2 :  300 mV/5 k Ω

Headphones :  0,3 mW/8 - 1 k Ω

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

Power Consumption:  17 watts

Dimensions (W x H x D):  340 x 115 x 274 mm

Weight:  4,8 kg

 

Pioneer SX-780 receiver

Pioneer SX-780 Stereo Receiver with Hybrid IC DC Amplifier Circutry, Latest Improvements in FM/AM Tuner Performance.

DC Power Amplifier

Pioneer's "DC with a Difference" Power Amp: no more "Mud" in Your Music.

When a musical signal enters the final power amplifier stage of the SX-780 and is given the "gain" (boost) it needs to drive your speaker systems, you can be sure that signal retains all the clarity and immediacy it had when it was originally delivered from your record, tape or broadcast. This is because the Pioneer DC design of the power amp uses no phase-delaying capacitors in the NFB or Negative Feedback loops, or in the final output stage. The main advantage is that TIM or Transient Intermodulation Distortion is reduced to negligible levels instantly; this, in turn, ensures that the "muddy" sound found in ordinary AC-type amps is gone forever. Unlike some other DC types however, Pioneer's design is "DC with a Difference". And that difference is that we retain the input capacitors to guarantee that absolutely no DC signal component can ever reach your speaker system to cause breakdown. Off/on switching noise, warped-record rumble and other undesiderable effects are also prevented, and frequency range is extended down to the very richest lows. And here's an important note: the SX-780 is the lowest-priced DC receiver in our entire lineup.

Hybrid IC Power Circuitry; More Efficiency, Less Cost

Improved circuit designs and the use of one hybrid IC per channel in the power output section of the SX-780 help reduce costs and raise efficiency. The ICs contain the bias, driver and output stages in a quasi-complementary circuit to feature high quality performance and long-life reliability. Power supply stability is ensured with one 8,000 µF electrolitic capacitor per channel.  All-new heat sinks improve efficiency.

 

FM Sensitivity is 1,8 µV ; A Meaningful Advantage

If the tuner or receiver you now own is more than a couple of years old, chances are it can't begin to compare with the SX-780 for high FM sensitivity, no matter how much you paid for it.  Only recently have our engineers developed circuitry to permit such high performance in pulling in the station you want with pinpoint accuracy; 1,8 µV or 10,3 dBf sensitivity in the SX-780 means better hi-fi FM sound in any reception area. A dual-gate MOS FET in the first stage of the three-transistor FM front end is part of our "secret"

 

Excellent Phase Characteristics in FM IF Amplifier.

Still more accuracy for better FM, capture ratio is an ideal 1,0 dB thanks to three two-pole ceramic filters with excellent phase characteristics in the IF amp. Circuited between them to achieve sufficient gain and better limiter characteristics is a special IC reflecting state-of-the-art. Circuit techniques.

 impressively Low Distortion and Noise in FM Performance

Still another Pioneer-exclusive IC, the PA-3001A, is found inn the SX-780 to improve FM performance. It includes the functions of FM discrimination, IF amplification and muting, and achieves a low distortion (at  65 dBf it is only 0,07%, mono 1 kHz) and a particularly high ratio of Signal-to-Noise Ratio . These specifications are the very best to be found in a receiver in this price range.

AM: The best Sound in Town

Pioneer has succeeded in eliminating the whine and boom of AM by packing the SX-780's AM tuner section with the very latest in special circcuitry. An IC (HA-1197), a newly-designed AM ferrite bar antenna, and other improvements help raise usable AM sensitivity to 300 µV/m and Signal-to-Noise Ratio to an excellent 50 dB. Low-frequency aound is especially clean.

Low Distortion Preamp

Musicality Guaranteed by Precision Phono Equalizer.

Dynamic range and frequency response are factors which are vital to accurate disc record reproduction, and both are maximized by the special circuitry in the phono equalizer of the Pioneer SX-780. a voltage-proof IC, the equivalent of 15 discrete transistors, is joined by precision RIAA components for long-life, high-quality reproduction with top musicality. Phono equalization is RIAA ±0,2 dB over the wide 20 to 20,000 Hz range. Phono overload is 200 mV, 1 kHz, 0,05% or less T.H.D.

 

Specifications

Amplifier Section

Continuous Power Output: 

45 watts per channel at 8 Ω  (20 - 20,000 Hz, 0,05% T.H.D.)

45 watts per channel at 4 Ω  (20 - 20,000 Hz, 0,08% T.H.D.)

Total Harmonic Distortion no more than 0,05% (continuous rated power output)

Intermodulation Distortion:  no more than 0,05% (continuous rated power output)

Damping Factor: 30

input Sensitivity/Impedance:

Phono :  2,5 mV/50 k Ω

AUX: 150 mV/ 50 k Ω

Tape Play 1, 2 :  150 mV/50 k Ω

Phono Overload Level:  200 mV ( 1 kHz  T.H.D. 0,05%)

Output Level/Impedance

Tape Rec 1, 2 :  150 mV

Speakers:  A, B, A +B

Headphones:  Low impedance

Frequency Response

Phono (RIAA EQ) :  20 to 20,000 Hz ±0,2 dB

AUX, Tape Play :  5 to 80,000 Hz +0 -1 dB

Tone Controls:

Bass :  +8 dB  -7 dB at 100 Hz

Treble :  +7 dB -6 dB at 10 kHz

Loudness Contour:  +6 dB (at 100 Hz) +3 dB (at 10 kHz)

Filter Low:  15 Hz (6 dB/oct)

Hum and Noise (IHF, short-circuited A network, rated power)

Phono :  76 dB

AUX, Tape Play :  95 dB

FM Tuner Section

Usable Sensitivity: 

Mono : 10,3 dBf (1,8 µV)

50 dB Quieting Sensitivity: 

Mono :  16,2 dBf (3,6 µV)

Stereo :  37,0 dBf (39 µV)

Signal-to-Noise Ratio

Mono :  80 dB

Stereo :  72 dB

Distortion (at 65 dBf)

Mono :  0,07% (at 100 Hz ); 0,07% (at 1 kHz); 0,12% (at 6 kHz)

Stereo :  0,15% (at 100 Hz); 0,15% (at 1 kHz ); 0,25% (at 6 kHz)

Frequency Response:  30 to 15,000 Hz +0,2 dB -0,8 dB

Capture Ratio:  1,0 dB

Selectivity:  75 dB

Alternate Channel Selectivity:  60 dB

Spurious Response Ratio:  65 dB

Image Response Ratio:  65 dB

IF Response Ratio:  90 dB

AM Suppression Ratio:  50 dB

Muting Threshold:  19,2 dBf (5 µV)

Stereo Separation:  45 dB (1 kHz); 35 dB (30 Hz -15 kHz)

Subcarrier Production Ratio:  55 dB

SCA Rejection Ratio:  65 dB

Antenna Input:  300 Ω  (balanced); 75 Ω  (unbalanced)

AM Tuner Section

Sensitivity:  300 µV/m (IHF, ferrite antenna); 15 µV (IHF, ext. Antenna)

Selectivity:  26 dB

Signal-to-Noise Ratio:  50 dB

Image Response Ratio:  40 dB

IF Response Ratio:  40 Hz

Antenna:  Built-in ferrite loopstick antenna

Semiconductors:  5 FETs; 11 ICs; 26 Transistors; 22 Diodes

Power Requirements:  110/120/220/240 V 50/60 Hz

Power Consumption:  150 W (UL), 280 VA (CSA)

Dimensions (W x H x D):  480 x 140 x 320 mm (18-7/8" x 5-1/2" x 12-5/8")

Weight:  12,8 kg (28 lb 3 oz)

Pioneer SX-680 receiver

Step Up to Stereo Excellence

Pioneer has an advantage few other stereo makers can offer; our investment in hi-fi technology is extensive and expensive.

Your benefit from such advanced electronic innovations as hybrid ICs in the power amplifier section. Pioneer-exclusive ICs in the FM/AM tuner section and high-efficiency circuit techniques throughout the sensibly-priced SX-680 stereo receiver. Power delivery is a continuous 30 watts per channel, both channels driven into 8 ohms from 20 to 20,000 Hz, with no more that 0,1% T.H.D.

High Circuit Stability in Power Amplifier

The hybrid ICs in the power amplifier of the SX-680 not only lower costs but ensure high circuit stability as well. Each contains the bias, driver and output stages required for its channel, and each forms as independent quasi-complementary circuit. Dual-type transistors are used in the first-stage differentials to contribute to better temperature characteristics. Two large 8,000 µF electrolytic capacitors prevent power "dry-up".

The Independent Power Meters:

We've given the trim, well-organized front panel of the SX-680 a new visual appeal by including functional, direct-readout power meters in the upper lefthand area. They are interesting to watch as they follow the level changes in your music, but they are practical, too, use them to make sure that your speaker systems are receiving just the right amount of power for maximum efficiency and best musicality. Their logarithmically-compressed scales indicate from 0,01 to 60 watts on easy-to-read calibrations.

 

First;Class Phono Equalizer for Dynamic Disc Reproduction

Real hi-fi "purist" insist on the most precise performance in phono equalizer circuitry so that the wide dynamic range of today's disc records is never compromised. Precision is what you get in the SX-680; RIAA equalization is flat ±0,3 dB, over the wide 30 to 15,000 Hz frequency range. Phono overload is 200 mV at 1 kHz, with only 0,1% or less T.H.D. so that you may use the cartridge of your choice. Three low-noise transistors and a powerful supply system are included.

Automatic FM Pilot Signal Canceller: You Can't Buy Better

This special device is so good we use it even on the most expensive Pioneer receivers and FM tuners. A Pioneer-exclusive IC is used in the stereo FM demodulator; it contains a PLL circuit to ensure wide stereo separation under any circumstances, but it also has an amazing Automatic Pilot Signal Canceller to ensure that the audio output is free of all non-audio content.

Dual-Gate MOS-FET in FM Front-End

Technicalities like these are what make Pioneer the stay-ahead leader in hi-fi. The dual-gate MOS FET in the FM front end of the SX-680 has very low feedback capacitance and a particularly high gain (two to three decibels over mono-type units). When teamed up with the three-gang variable capacitor, it helps to provide a usable FM sensitivity of 1,9 µV (10,8 dBf) on mono, which translates into superb FM reception in any locale.

 

Specifications

Amplifier Section

Continuous Power Output: 

30 watts per channel at 8 Ω 

37 watts per channel at 4 Ω

Total Harmonic Distortion no more than 0,1% (continuous rated power output)

Intermodulation Distortion:  no more than 0,1% (continuous rated power output)

Damping Factor: 25 input Sensitivity/Impedance:

Phono :  2,5 mV/50 k Ω

AUX: 150 mV/ 50 k Ω

Tape Play 1, 2 :  150 mV/50 k Ω

Phono Overload Level:  200 mV ( 1khz T.H.D. 0,1%)

Output Level/Impedance

Tape Rec 1, 2 :  150 mV

Speakers:  A, B, A +B

Headphones:  Low impedance

Frequency Response

Phono (RIAA EQ) :  30 to 15,000 Hz ±0,3 dB

AUX, Tape Play :  10 to 60,000 Hz +0,5 -1,5 dB

Tone Controls:

Bass :  ±8 dB at 100 Hz

Treble :  ±10 dB at 10 kHz

Loudness Contour:  +6 dB (at 100 Hz) +3 dB (at 10 kHz)

Hum and Noise (IHF, short-circuited A network, rated power)

Phono :  75 dB

AUX, Tape Play :  90 dB

FM Tuner Section

Usable Sensitivity: 

Mono : 10,8 dBf (1,9 µV)

50 dB Quieting Sensitivity: 

Mono :  16,7 dBf (3,8 µV)

Stereo :  37,0 dBf (3,8 µV)

Signal-to-Noise Ratio

Mono :  80 dB

Stereo :  70 dB

Distortion (at 65 dBf)

Mono :  0,07% (at 100 Hz ); 0,07% (at 1 kHz); 0,2% (at 6 kHz)

Stereo :  0,15% (at 100 Hz); 0,15% (at 1 kHz ); 0,25% (at 6 kHz)

Frequency Response:  30 to 15,000 Hz +0,2 dB -1,0 dB

Capture Ratio:  1,0 dB

Alternate Channel Selectivity:  60 dB

Spurious Response Ratio:  65 dB

Image Response Ratio:  65 dB

IF Response Ratio:  90 dB

AM Suppression Ratio:  50 dB

Muting Threshold:  19,2 dBf (5 µV)

Stereo Separation:  40 dB (1 kHz); 30 dB (30 Hz -15 kHz)

Subcarrier Production Ratio:  50 dB

SCA Rejection Ratio:  65 dB

Antenna Input:  300 Ω  (balanced); 75 Ω  (unbalanced)

AM Tuner Section

Sensitivity:  300 µV/m (IHF, ferrite antenna); 15 µV (IHF, ext. Antenna)

Selectivity:  26 dB

Signal-to-Noise Ratio:  50 dB

Image Response Ratio:  40 dB

IF Response Ratio:  40 Hz

Antenna:  Built-in ferrite loopstick antenna

Semiconductors:  3 FETs; 5 ICs; 21 Transistors; 29 Diodes

Power Requirements:  110/120/220/240 V 50/60 Hz

Power Consumption:  95 W (UL), 210 VA (CSA)

Dimensions (W x H x D):  435 x 144,5 x 314 mm (17-1/8" x 5-11/16" x 12-3/8")

Weight:  8,9 kg (19 lb 10 oz)

 

Ortofon MC20 Super cartridge

 

Higher Output Moving Coil Cartridge

This new cartridge incorporates the very latest developments to come out of our research laboratories and also employs the acclaimed van del Hul stylus shape in the MkII version

The Stylus

The special van del Hul  stylus chosen fro the MC20 Super, is an improvement of the original shape. In addition to providing excellent tracking capability, this new slim shape is more robust and places far less critical demands on the cartridge/headshell mounting.

The van del Hul shape is , in fact, the shape that most closely resembles the actual cutting sapphire.  The slim, highly polished profile of the stylus allows a wide contact area to the groove wall and permits:

Tracking of even the highest frequency groove information (especially in the innermost turns of the record groove)

Reduced record and stylus wear

Reduced distortion and phase error, as a result of the diamond's improved tracking geometry.

 

Aluminuim Housing

In order to gain the maximum benefit from this new diamond, it was necessary to construct an extremely rigid cartridge body that was virtually free from undesired resonances. We have achieved this by engineering the cartridge housing from extended aluminium profile, whilst ensuring that the cartridge weighs no more than 9 grams.

With this cartridge we have also achieved dynamic compliance of 16 µm/mN, which means that the MC20 Susper can be mounted in all medium to heavy mass tonearms.

 

Carbon Fibre Plate

By introducing a special carbon fibre plate to the bottom of the MC20 Super we have resolved the problem of static electricity that normally appears from records as small sparks on the projecting points of the cartridge's metal parts. This plate picks up the static electricity across the entire record surface and thus reduces these sparks considerably.

At the same time the charcoal fibre plate, which is made of very hard material, connects the basis of the moving system to the housing and this too prevents undesired resonances.

 

The Advances that made the MC20 Super possible

We have again broken new ground in the development of the MC20 Super, overcoming problems that previously seemed impossible.

In order for us to achieve a higher output voltage then normal, it was necessary to place more windings on the armature. Previous attempts at this have resulted in an increase in mass and therefore a loss of performance.

However, with the new MC20 Super we have been able to keep a low equivalent stylus tip mass of just 0,5 mg with the introduction of unique Ortofon developments.

The first, is a new armature which was originally designed for Ortofon's state of-the-art. Ortophase MC2000. this new armature has been designed as a tiny, lightweight cross, which allows the number of minute windings to be increased without affecting the performance of the moving mass. As a result, the cross sectional area of the windings is identical on both coils, thereby improving channel balance. And the coil are mounted at exactly 90 to each other improving channel separation.

To meet the higher output the basic magnetic system has also been re-designed to include a stronger magnet and more efficient pole pins thus keeping the necessary number of windings to a minimum. Furthermore, the entire magnetic system is glued to the cartridge body, giving greater rigidity and mechanical stability. This also prevents internal resonances which in turn permits cleaner high frequency response.

In order to exercise complete control over all the moving parts, particularly in the high frequency range where the properties of the diamond influence reproduction most we have incorporated the extremely stable Wide Range Damping system.

The advances that we made in linear phase technology on the Ortophase Concept have also been applied to the MC20 Super. The resulting linear phase and Frequency Response  characteristics ensure an extremely high standard of stereo reproduction.

 

Specifications

Weight:  9 gram

Type of Stylus:  Van den Hul model II nude

Stylus Tip Radius:  r/R 5/70 µm

Equivalent Stylus Tip Mass:  0,49 mg

Frequency Response:  20 - 40,000 Hz =4 -1 dB

Output Voltage at 1 kHz, (5 cm/sec):  >0,2 mV

Channel Balance at 1 kHz:  >1,0 dB

Channel Separation at 1 kHz: >25 dB

Channel Separation at 15 kHz: >19 dB

Dynamic Compliance, Horizontal/Vertical:  15/15 µm/mN

Vertical Tracking Angle:  20°

Recommended Tracking Force:  18 mN/1,8 g

Tracking Force Range:  16 - 20 mN; 1,6 - 2,0 g

Tracking Ability at 315 Hz (Lateral):  >80 µm

Internal Resistance:  3 Ω

Recommended Load Impedance:  ≥10 Ω

FIM Distortion: ≤0,8%

Ortofon MC10 Super cartridge

 

Higher Output Moving Coil Cartridge

Ever since Ortofon introduces the world's first moving coil cartridge, back in 1948, it has been accepted that the finest sound reproduction comes from this type of pick-up.

But this higher quality has always gone hand-in-hand wwith greater expense. Because buying a moving coil has entailed an extra outlay on a transformer or pre-preamplifier to boost the moving coil's lower voltage outputs.

Until now. And the new Ortofon MC10 Super.

With this cartridge we have succeeded, for the first time, in producing a moving coil cartridge that has all the quality traditionally associated with the Ortofon name, but has no need for a steo-up device.

The Moving Coil Principle

Moving coil cartridges are based on the use of twin coils of microscopically fine wire (one for each stereo channel), acting as miniaturised power generators. Each generating its own electrical current as it moves within a magnetic field.

Ortofon use a patented construction method , which allows the coils to adopt two positions.

In neutral, the coil is by-passed by the magnetic field and no signal is generated. But when the stylus and cantilever shift it into the second position, the coil conatcts the magnetic field and a signal is induced.

So, as the stylus traces the record's grooves, the variations in its movement are transmitted to the coils via the cantilever. The coils are than moved from their neutral position, cutting the lines of force between the magnetic poles and producing tiny voltages.

These voltages are replicas of the signals placed in the groove when the record was cut. And it is because the moving coil principle is also used in this cutting, that the most accurate reproduction of the signals is achieved by the same method.

The higher output MC10 Super

Because normal moving coil cartridges use such miniaturised coils, their voltage output is very low (0,1 mV or less). Necessitating the use of additional amplification. But by increasing the number of windings on the MC10 Super's coils we have increased its output voltage to 0,3 mV. Which means it will provide a perfect match for any up-to-date amplifier with a built-in  MC input, without the need for an external step-up device. Yet because it has an internal impedance of 3 Ω , it can still be used successfully with any of our step-up transformers it further improvement in sound is deemed desirable, or even possible.

The advances that made the MC10 Super possible

Previous attempts at putting more windings on a moving coil, while increasing the cartridge's voltage output, have also increased its mass. With a resulting loss of performance. But with the MC10 Super we have been able to keep a low eqivalent stylus tip mass of just 0,5 mg, thanks to three further developments by Ortofon technicians.

The first is a new armature, which was originally designed for Ortofon's state-of-the-art. Ortophase MC2000. this new armature has been designed as a tiny, lightweight cross, which allows the number of minute coil windings to be increased without affecting the performance of the moving mass.

As a result, the cross-sectional area of the windings is identical on both coils, improving channel balance. And the coils are mounted at exactly 90° to each other, improving channel separation.

The second development is a new magnet and improved damping system. This has increased the strength of the cartridge's magnetic field. And has allowed its natural pivotal point to be placed immediately behind the armature giving an extremely precise moving system.

Finally, the MC10 Super has a tiny, nude Elliptical diamond, mounted on a very light and rigid cantilever. The resulting low equivalent stylus tip mass and the cantilever compliance mean that the MC10 Super will give excellent results with virtually any modern tonearm.

Ortofon's linear phase technology, the Ortophase Concept, has been applied to the MC10 Super. The result being that the phase and Frequency Response characteristics are as linear as possible, therefore, achieving an extremely high standard of stereo reproduction.

 

Specifications

Output Voltage at 1000 Hz, 5 cm/sec:  0,3 mV

Channel Balance at 1000 Hz:  1,5 dB

Channel Separation at 1000 Hz: 25 dB

Frequency Response: 20 - 20,000 Hz +4 dB/ -1 dB

FIM Distortion at Recommended Tracking Force, DIN 45-542: ≤1%

Tracking Ability at 315 Hz at Recommended Tracking Force:  >60 µm

Dynamic Compliance, Horizontal/Vertical:  14/14 µm/mN

Vertical Tracking Angle:  20°

Type of Stylus:  Elliptical Nude

Equivalent Stylus Tip Force:  0,5 mg

Recommended Tracking Force:  15 mN/1,5 g

Tracking Force Range:  13 - 18 mN; 1,3 - 1,8 g

Weight of Unit:  7 g

Internal Impedance DC Resistance per Channel:  3 Ω

Recommended Load Impedance per Channel:  ≥10 Ω

Sansui D-570 cassette deck

 

D-570 Computerized Direct-Drive Cassette Deck

Sansui's reference model with state-of-the-art. Features for convenience and top specifications 3-head design; fine-biass control and direct-drive add up to accuracy

3-head design with monitor. Direct-drive capstan motor. Fine-bias tune system AMPS for cue, skip and repeat. Dolby C/B NR system "Compu Edit" for auto dubbing with programmable P-M77 or P-L50 turntable. Fuorescent real time counter.

AMPS (Automatic Music Program Search)

Many Sansui decks have an extremely versatile feature known as AMPS. It lets you cue in on the beginning of the next song, or return  to the beginning of the present song - automatically. Even more advanced versions of AMPS are available in some Sansui decks.

 

Specifications D-570

Track System:  4-track, 2-channels

Tape Speed:  4,8 cm/sec

Head: 

1 x Erase High Bs Ferrite

1 x Rec.Pb High Bs Ferrite Combination)

Motor : 

Capstan :  FG Servo Coreless Direct Drive

Reels :  Electronically Controlled DC Motorr

Wow and Flutter:  0,03% (WRMS)

Frequency Response

Metal Tape :  20 - 22,000 Hz

High Bias Tape :  20 - 19,000 Hz

Normal Tape (LH) :  20 -17,000 Hz

Signal-to-Noise Ratio

Metal

With Dolby "C" NR :  80 dB (above 1 kHz)

With Dolby "B" NR :  70 dB (above 5 kHz)

Without Dolby NR :  60 dB (weighted)

Dimensions:  430 x 111 x 324 mm

Weight:  6,4 kg

Sansui D-370 cassette deck

Computerized  Direct-Drive Cassette Deck

A versatile yet easy-to-use deck designed for top-notch performance and full hi-fi sound. It's the perfect deck for those who are serious about their music.

Direct-drive capstan motor AMPS for cue, skip and repeat. Dolby C/B NR system. "Compu Edit" for auto dubbing with programmable P-M77 or P-L50 turntable. Fluorescent real-time counter

Compu Edit

Another extraordinary convenience feature is Compu Edit. It allows completely automatic recording in conjunction with Sansui's P-M-77 and P-L50 programmable turntables. Making perfectly edited tapes has never been easier

 

 

Specifications D-370

Track System:  4-track, 2-channels

Tape Speed:  4,8 cm/sec

Head: 

1 x Erase High Bs Ferrite

1 x Rec.Pb High Bs Hard Permalloy

Motor : 

Capstan :  FG Servo Coreless Direct Drive

Reels :  Electronically Controlled DC Motorr

Wow and Flutter:  0,03% (WRMS)

Frequency Response

Metal Tape :  20 - 19,000 Hz

High Bias Tape :  20 - 18,000 Hz

Normal Tape (LH) :  20 -16,000 Hz

Signal-to-Noise Ratio

Metal

With Dolby "C" NR :  80 dB (above 1 kHz)

With Dolby "B" NR :  70 dB (above 5 kHz)

Without Dolby NR :  60 dB (weighted)

Dimensions:  430 x 111 x 324 mm

Weight:  6,4 kg