What is stereo?




There are now two system of high fidelity, monophonic (monaural) and stereophonic. Monophonic is a system that starts from one microphone and is fed through a single high fidelity set. Stereophonic is a double system. Two separate microphones are placed at different sides of the orchestra and two different systems are used to keep the two signals or channels separated. Two separate speakers are used, placed on different sides of you room. Stereo is much like 3-D photography, two slightly different sound reach your ears giving you a new dimension in sound.




H.H. Scott '59





Allison Model Five

 ALLISON: FIVE
Introduced in 1976, the Allison: Four loudspeaker  system established a new standard of performance for  "bookshelf" systems of its size and price. It has still not been fully equalled. But the Allison: Five system now offers very nearly the same performance as the Four at a significantly lower price.
Both have an 8-inch long-excursion woofer in a cabinet of moderate size. Low-frequency performance is identical; Stabilized Radiation Loading design enables the systems to deliver bass power to a listening room that is essentially flat (-3 dB) to 41 Hz . This can be extended to 20 Hz at reasonable sound levels with The Electronic Subwoofer equalizer.
 The Allison: Five system has a single Convex Diaphragm tweeter, as compared with two in the model Four. With only one tweeter the cabinet is a simple rectangular shape, less costly than that of the Four, which provides a further saving. The only performance compromises are a slight reduction in high-frequency power handling capability and slighty less high-frequency dispersion. In both respects, however, the model Five is significantly better than competitive speakers.
Balanced for use close to one room wall, the Allison: Five cabinet can be put on a table or a shelf, or mounted on the wall. It can be oriented with its long dimension either horizontal or vertical.
SPECIFICATIONS
Model Five
Speaker  Complement:
Woofer : one 8-inch (203 mm)
Tweeter : one 1-inch (25 mm )  Convex Diaphragm
Crossover Frequency:  2 kHz
Crossover Network:  LC quarter-section. Air-core choke and polyester capacitor are used. Two-position control switch (accessible from front) supplied for selection of system acoustic power response, from nominally flat to gentle HF rolloff.
Impedance:  4 Ω nominal, (3,5 Ω minimum in any balance control setting)
Efficiency:  better than 0,7% when placed with back against wall.
Minimum Amplifier Power:  15 watts per channel to produce 97 dB sound pressure level in most domestic room environments; 30 watts per channel for 100 dB SPL
Power Handling Capability:  At least 15 watts contiuous or average, at any frequency.
At least 35 watts peak at resonance frequency. Over most of frequency range, at least 350 watts for 0,1 second; 125 watts for 1 second; 60 watts for 10 seconds.
System Resonsnce Frequency:  52 Hz, nominal
Effective System Q:  1.0. Power response -3 dB at 41 Hz; -6 dB at 34,5 Hz, when placed close to center of large wall. Low-frequency output increases when system is placed in typical positions with respect to side wall and floor or ceiling
Enclosure:  stabilized Radiation Loading sealed acoustic suspension design.
Internal Volume:  20,73 litres (1,265 cubic inches)
Material:  particle Board veneered with walnut, oiled finish.
Dimensions (H x W x D):  279 x 464 x 254 mm (11" x 18-1/4" x 10")
Weight:  9,5 kg (21 lbs)

Allison Model Six

 ALLISON: SIX
In the Allison: Six the Stabilized Radiation Loading design principle is carried to just about its practical limit for an 8-inch woofer.  The cabinet is reduced in size to ½ cubic foot, yet the system's low-frequency output is basically flat to below 50 Hz (-3 dB at 46,5 Hz) while maitaining reasonable efficiency. Response can be equalized flat to below 30 Hz at moderate sound levels with The Electronic Subwoofer.
 The same Convex Diaphragm tweeter as those used in all Allison loudspeaker systems is also used in the model Six. Therefore it has equivalent high-frequency range, smoothness, and the same uniquely wide dispersion in the forward hemisphere.
The model Six is intended for use with its back close to one room wall; on a shell, table, or bookcase, or mounted on the wall. The woofer panel can be oriented horizontally or vertically.
Because of the small cabinet size and the walnut-grain vinyl finish, the Allison: Six 's price is substantially below that of the model Five.
Specifications
Model Six
Speaker  Complement:
Woofer : one 8-inch (203 mm)
Tweeter : one 1-inch (25 mm )  Convex Diaphragm
Crossover Frequency:  2 kHz
Crossover Network:  LC quarter-section. Air-core choke and polyester capacitor are used. Two-position control switch (accessible from front) supplied for selection of system acoustic power response, from nominally flat to gentle HF rolloff.
Impedance:  4 Ω nominal, (3,5 Ω minimum in any balance control setting)
Efficiency:  better than 0,7% when placed with back against wall.
Minimum Amplifier Power:  15 watts per channel to produce 97 dB sound pressure level in most domestic room environments; 30 watts per channel for 100 dB SPL
Power Handling Capability:  At least 15 watts contiuous or average, at any frequency.
At least 35 watts peak at resonance frequency. Over most of frequency range, at least 350 watts for 0,1 second; 125 watts for 1 second; 60 watts for 10 seconds.
System Resonsnce Frequency:  59 Hz, nominal
Effective System Q:  1.0. Power response -3 dB at 46,5 Hz; -6 dB at 39 Hz, when placed close to center of large wall. Low-frequency output increases when system is placed in typical positions with respect to side wall and floor or ceiling
Enclosure:  stabilized Radiation Loading sealed acoustic suspension design.
Internal Volume:  14,1 litres (860 cubic inches)
Material:  particle Board veneered with walnut, oiled finish.
Dimensions (H x W x D):  286 x 286 x 286 mm (11-1/4" x 11-1/4" x 11-1/4")
Weight:  7,7 kg (17 lbs)

JBL L100 Century

 The L100 Century is the most successful bookshelf loudspeaker ever produced by JBL. It may be the most successful loudspeaker in its class ever produced by anyone.
But we don't expect you to take our word alone. The plain fact is that the L100 was offered for home use only after it proved to be a runaway bestseller with studio recording engineers - the most demanding listeners you'll ever find.
This professional acceptance was no accident. The speaker was originally developed and offered for sale as a control monitor for recording studios.
 Technical Information
Low Frequency
Music below 1500 Hz is reproduced by a powerful 12 inch, long excursion loudspeaker with 3-inch edgewound copper ribbon voice coil, massive magnetic assembly, and large Alnico V magnet.
The cone is molded in a shape which makes possible uniform wide angle didstribution of the full low frequency range, and is coated with an exclusive damping factor damping compound, which prevents unwanted reverberations traveling within the cone material. An enclosure with a tuned port is employed to optimize bass efficiency and dynamic range.
 Midrange
Vocals and midrange sounds are reproduced by a 5-inch transducer having high sensitivity and power handling capacity. A 7/8" copper voice coil, suspended in an intense magnetic fieldprovided by a 2,75-pound magnetic assembly energized by an Alnico V magnet, drives the midrange transducer.

 High frequency
Delicate treble fundamentals, overtones and harmonics above 6000 Hz are reproduced by a 1,4-inch direct radiator. Its 5/8" copper voice coil is unusually large in relation to cone diameter, for greatest efficiency and transient response. Suspending the outer edge of the cone assembly with an impregnated cloth and surrounding the entire dynamic structure with a ring of dense foam eliminates unwanted rediations and reflections. The smal surface of the cone and center dome is responsible for uniform high frequency dispersion.

Dividing Network
The function of the network is far more complex than merely diverting low and high notes to a woofer and tweeter respectively; it wastes none of the power that should be used to drive the loudspeakers; it precisely controls each speaker's operation in the transition frequency range. Controls on the front of the cabinet, behind the removable foam grille, permit  adjusting midrange and high frequency levels for greater or less audible output in relation to the bass.
 Power handling capacity
The specified power handling capacity indicates the continuous program level that can be accepted by a JBL loudspeaker system without damage. Its peak power handling capacity is considerably greater than the continuous rated value, as reflected in the remarkable transient response of JBL loudspeaker system components.
The L100 will produce clean sound at comfortable listening levels when driven by an amplifier having an output of as little as 10 Watts RMS per channel.
However, for reproduction of the full dynamic range of contemporary recordings at high volume, a quality amplifier delivering up to 150 Watts RMS per channel will provide optimum performance. Such an amplifier has the reserve power necessary for accurate reproduction of transients, which can reach momentary peaks equivalent to ten times tha average power level. In almost all cases, the volume level generated by a JBL loudspeaker will become noticeably discomforting to the ear before the loudspeaker can be damaged by excessive power from the amplifier.

Enclosure
Only furniture hardwoods, hardwood veneers, and compressed woods are used. Tight, wood-welded, hand-fitted joints eliminate undesirable resonance  and warpage. Hand-rubbed oiled walnut finish on all four sides permits the l100 Century to be placed in either an upright or horizontal position.
Specifications
Power Capacity:  50 watts continuous program
Nominal Impedance:  8 Ω
Crossover Frequencies:  1500 and 6000 Hz
Efficiency:  78 dB Sound pressure Level at distance of 15', 1 watt input
Low Frequency Loudspeaker
Nominal Diameter:  300 mm (12")
Voice Coil:  76 mm (3") edgewound copper ribbon
Magnetic Assembly Weight:  3,1 kg (6,75 pounds)
Flux Density:  10,400 gauss
Sensitivity:  42 dB
Midrange Transducer
Nominal Diameter:  130 mm (5")
Voice Coil:  22 mm (7/8") copper
Magnetic Assembly Weight:  1,2 kg (2,75 pounds)
Flux Density:  16,500 gauss
EIA Sensitivity:  46 dB
High Frequency Direct Radiator
Nominal Diameter:  36 mm (1,4 ")
Voice Coil:  16 mm (5/8") copper
Magnetic Assembly Weight:  0,7 kg (1,6 pounds)
Flux Density:  15,000 gauss
Sensitivity:  47 dB
Finish :  Oiled walnut
Grille Color Options:  Ultra Blue; Chocolate Brown or Burnt Orange
Dimensions (W x H x D):  360 c 600 x 350 mm (14-1/4" x 23-1/2" x 13-5/8")
Weight (shipping):  25 kg (55 lbs)

Carver MXR-130 The Receiver

 The Carver Receiver
When Bob Carver designs a receiver you can be sure it is like no other. To give you the power you need for today's recording advances plus virtually noise-free stereo FM reception. Carver has designed a receiver with astonishing performance. This extraordinary instrument incorporates two of the high fidelity art.'s most advanced technological breakthroughs: Bob Carver Magnetic Field Power Amplifier and his Asymetrical Charge Coupled FM Detector.
With the Carver Receiver you command 130 watts per channel and fully digital quartz synthesized AM-FM stereo tuner through a highly sophisticated and meticulously engineered premplifier section.
 Live music is full of lighting-fast transients, combinant crests of demand created by multiple music waveforms and high intensity peaks. To reproduce the full sound of the music now made possible by the most recent recording advances in fine analog recordings and especially Digital Audio Discs, your system needs large amounts of power to accomodate the dynamic range without distortion.
The Magnetic Field Amplifier in the Carver Receiver gives you 130 watts per channel of pure clean power so you can truky appreciate the music.
The technological elegance of the Magnetic Field Amplifier enebles it to produce large amounts of power without the need for heavy heat sinks, massive transformers, and enormous power capacitors required by conventional amplifier design.
Unlike conventional amplifiers which produce a constant high voltage level at all times, irrespective of the demands of the ever-changing audio signal and indeed even when there is no audio signal in the circuit at all the Magnetic Field Amplifer's power supply is signal responsive and highly efficient. It produces exactly and only the power needed to carry the signal with complete accuracy and fidelity.
 The Carver receiver gives you FM stereo performance unmatched by that of any other receiver.
As it is transmitted from the station, the stereo FM signal is extremely vulnerable to distortion.noise, hiss and multipath interference. In fact because of the transmission system in use today the signal to noise ratio of FM stereo has been degraded fifteen times (more than 23 dB).
However, when you engage Carver's Asymetrical Charge Coupled FM Detector circuit, the stereo signal arrives at your ears virtually noise-free. You hear fully separated stereo with space depth and ambience.
You will also appreciate the AM section. Meticulous attention to every aspect of tuner performance gives you an AM section with true high fidelity response. You will not find another receiver with such high performance anywhere.
The Craver Receiver has been designed for serious music listeners who seek fidelity accuracy and musicality.
Specifications
FM Section
System:  PLL Crystal-Locked Digital Synthesizer System
Tuning Range:  87,5 - 108 MHz
Antenna:  75 Ω unbalanced and 300 Ω balanced
Intermediate Frequency:  10,7 MHz
Frequency Response:  20 - 15,000 Hz ±1 dB
Alternate Channel Selectivity:  58 dB
Capture Ratio:  ±1,5 dB
AM Suppression Ratio:  75 dB
IF Response Ratio:  100 dB
Spurious Response Ratio:  100 dB
Output Level (7,5 kHz Dev.):   700 mV, 600 Ω
Usable Sensitivity Mono :
  75 Ω :  11,3 dBf /1,0 µV
300 Ω :  11,3 dBf /2,0 µV
Usable Sensitivity Stereo :
Without Charge Coupled Detector : 
 75 Ω :  34 dBf / 14 µV
300 Ω : 34 dBf / 28 µV
With Charge Coupled Detector : 
 75 Ω :  16,3 dBf / 78 µV
300 Ω : 16,3 dBf / 57 µV
50 dB Quieting Sensitivity Mono :
75 Ω : 16,1 dBf / 1,7 µV
300 Ω :  16,1 dBf/ 3,4 µV
50 dB Quieting Sensitivity Stereo :
Without Charge Coupled Detector : 
 75 Ω :  37 dBf / 19 µV
300 Ω : 37 dBf / 39 µV
With Charge Coupled Detector : 
 75 Ω :  23,5 dBf / 4,0 µV
300 Ω : 23,5 dBf / 8,0 µV
Signal-to-Noise Ratio Mono :
75 Ω :  82 dB at 85 dBf
300 Ω :  82 dB at 85 dBf
Signal-to-Noise Ratio Stereo
Without Charge Coupled Detector : 
 75 Ω :  74 dB at 85 dBf
300 Ω : 74 dB at 85 dBf
With Charge Coupled Detector : 
 75 Ω :  85 dB at 85 dBf
300 Ω : 85 dB at 85 dBf
Stereo Separation (Wide) [Without Charge Coupled Detector /With Charge Coupled Detector]
45 dB / 45 dB at 1 kHz
36 dB / 30 dB at 100 Hz
36 dB / 25 dB at 10 kHz
AM Section
Tuning Range:  520 - 1710 kHz
IF Rejection Ratio:  45 dB
Output level at 1khz:  160 mV ±2,5 dB
Pre-Amplifier Section
Phono RIAA :  ±0,25 dB
Phono S/N Ratio:  50 dB ref. 5 mV
Input  Impedance
Phono:  50 k Ω
Video/DAD:  50 k Ω
Aux:  50 k Ω
Tape 1, 2 : 50 k Ω
Total Harmonic Distortion: 
20 Hz :  0,05%
1 kHz :  0,05%
20 kHz :  0,05%
Frequency Response:  20 Hz - 20 kHz ±0,5 dB
Tone Controls
Bass :  ±10 dB at 100 Hz
Treble :  ±10 dB at 10 kHz
Midrange :  ±6 dB at 1,5 kHz
High Filter:  5 kHz (6 dB/oct) -3 dB point
Power Amp Section
Power output 20 Hz - 20 kHz:  130 W both channels into 8 Ω
THD at Rated Power:  0,05%
IM Distortion:  0,1% SMPTE
TIM Distortion:  Unmeasurable
Frequency Response:  20 Hz - 20 kHz ±0,5 dB
Damping Factor:  60
Noise:  better than 100 dB IHF-A weighted

Power Supply:  120 V 50/60 hz

Carver TL-3200

 Compact Disc Player with Digital Time Lens Circuitry
Carver DTL: for natural sound, and convenient features for added musical enjoyment.

Features
16-bit/8X oversampling D/A circuitry
Dual D/A converters
32-track programming with Delete
Random "shuffle play" and 10-sec intro scan
Also plays 3" CDs without an adaptor
14-function infrared remote with 10-key input pad
Remote volume control
Remote compatibility with Carver receivers
Fixed/variable line output, variable headphone output.
Specifications
Frequency Response: 2 Hz to 20 kHz ±0,2 dB
Total Harmonic Distortion:  0,003% at 1 kHz
Signal-to- Noise Ratio:  100 dB
Channel Separation:  100 dB at 1 kHz
Wow and Flutter:  unmeasurable
Output Voltage [fixed/variable]:  2,0 V / 0 - 2,0 V
Power Consumption:  17 watts
Dimensions (W x H x D):  19" x 3,5" x 10"

Weight:  8,5 lbs

Denon DCD-1400

Compact Disc Player DCD-1400
PCM Audio Technology
Super Linear Converter 4-Times Over Sampling Digital Filter

Functions:
Direct selection, automatic search, programmed selection, repeat playback, manual search, auto space, time mode, call, auto edit
Headphone jack with variable level.
Display:

Track number, index number, time, program and direct, etc.

Specifications
Audio Section
No. Of Channels: two channels
Frequency Response:  2 - 20,000 Hz
Dynamic Range:  96 dB
Signal-to-Noise Ratio:  103 dB
Harmonic Distortion:  0,0035% 91 kHz)
Separation:  100 dB (1 kHz)
Wow and Flutter:  less than the measuring limit (=0,001% W. Peak)
Output Voltage:  2,0 V (variable 0 - 2 V)
Genral
Power Supply:  220 - 240 V 50/60 Hz
Power Consumption:  17 W
Dimensions (W x H x D):  434 x 112 x 314 mm (17,1" x 4,4" x 12,4")
Weight:  6,3 kg
Remote Control Unit RC-205
System:  Infrared pulse system
Power Supply:  3V DC
External Dimensions (W x H x D):  60 x 165 x 17 mm (2,4" x 6,5" x 0,7")
Weight:  95 g ( includes betteries)

Accessories: Connecting pin cord

B&W CD-5

 CM5 is a slighty larger speaker than its sibling the CM1, with even higher sensitivity and power handling, and better bass extension. It partners a sizable 165 mm kevlar cone bass/ midrange driver with a Nautilius tube loaded aluminium dome tweeter, capable of keeping high frequencies crisp and sharp all the way up to 50 kHz and beyond.
Specifications
Technical Features:
Nautilius tube loaded aluminium dome tweeter kevlar brand fibre cone bass/midrange Flowport.
System Type:  2-way vented-box system
Drive Units:
1 x 25 mm (1") aluminium dome high-frequency
1 x 165 mm (6 ½") woven Kevlar cone bass/midrange
Frequency Range:  -6 dB at 45 Hz and 50 kHz
Frequency Response:  52 Hz - 22 kHz ±3 dB on reference axis
Dispersion (within 2 dB of reference response):
Horizotal :  over 60° arc
Vertical :  over 10° arc
Sensitiviry:  88 dB spl (2,83 V, 1m)
Harmonic Distortion:  2ad and3 harmonics (90 dB, 1m)
Less than 1% 100 Hz - 22 kHz
Less than0,5% 150 Hz - 20 kHz
Nominal Impedance:  8 Ω (minimum 3,7 Ω)
Crossover Frequency: 4 kHz
Recommended Amplifier Power:  30 W - 120 W into 8 Ω on unclipped programme
Max. Recommended  Cable Impedance:  0,1 Ω
Dimensions (W x H x d):  200 x 340 x  280 (13,4" x 7,8" x 11")
Net Weight:  8,9 kg (19,6 lbs)
Finish: 
Cabinet :  real wood veneers;Wenege: Rosenut and Painted Finish:                                                         

Grille ;  Black

Kenwood KW-8077

3-Motor 6-Head Auto-Reverse Stereo Tape Deck

Specifications
Track System:  4-track 2-channel stereophonic and monaural
Niumber of heads:  Six micro-gap heads with super ferrite cores
Record/Playback System:  4-track stereo/mono recording and playback on both Forward and Rewerse. Permits Auto-Reveres and Auto-Repeat.
Pre-Amplifier:  Independent head pre-amplifiers (all solid state, 23 transistors, 5 diodes). Distortion (record/playback) less than 0,5% at 0 dB
Real Size:  Standard NAB 7" maximum
Tape Speeds:  7-½ ips and 3-¾ ips
Wow and Flutter: 
less than 0,04% at 7-½ ips;
less than 0,07% at 3-¾ ips
Fast Forward and Rewind Time:  1200 feet in 90 seconds (at 50 Hz)
Frequency Response: 
20 - 20,000 Hz (30 - 17,000 Hz ±2 dB) at 7-½ ips
20 - 12,00 Hz (30 - 10,000 Hz ±2 dB) at 3-¾ ips
Equalizer:  Nab Standard with 5-step control switch
Signal-to-Noise Ratio:  better than 52 dB at 7 -½ ips
VU Meter:  Standard recording level at 0 VU. Output 0 dB (0,775 V) at 0 VU during playback
Inputs:
2 x Microphone Input Jacks [sensitivity/ impedance]:  0,24 mV/600 Ω
2 x Line Input Jacks [sensitivity/impedance]:  100 mV/100 k Ω
Outputs:
2 xLine Output jacks [standard output/optimum load Impedance]:  0,775 V/5 k Ω
Stereo Headphone Jack-Outptut [impedance]:  8 Ω
Tape Transport Mechanism:  Dual speed synchronous  (4-pole/8-pole) motor for capstan drive, 2outer-rotor (6-pole motors for reel drive)
DIN Standard Record/Play
Connector:
Input Side [max. Sensitivity/input impedance] :  14 mV/100 k Ω
Output Side [standard output/optimum load impedance] :  0,775 V/5 k Ω
Separation:
40 dB at 100 Hz between tracks
50 dB at 1 kHz between channels
Erase System:  AC 85 kHz
Built-in Features:
Solenoid action micro-touch controls;  Search system;  Tape loading lever;  Tape tension arms;  Auto-stop;  4 digit tape counter;  Equalizer Control Circuits;  L-R separate tape monitor switch;  Playback level control;  Line-microphone mixing;  Remote control jack
Power Requirements:  AC 90 V -250 V , 50/60 Hz
Power Consumption:  120 W
Dimensions (W x H x D):  17" x 19-3/8" x 9"
Weight:  46 lbs
Supplied Accessories:  7" empty reel;  Reel caps x 2;  Audio 2P cords x 2;  Reel adjusting disc x 2;  Sensing foil x 10; Anti-dust Cover

Sansui SP-50

 This is the one of the finest compact speaker systems made today. And represent a major breakthrough in speaker design and performance. SP-50 offers a frequency response range and an input capacity far out of proportion to its compact size. SP-50 features Sansui;s exclusive pipe-duct bass reflex enclosure, special damping material and distinctive handcarved fretwork grilles.
Specifications SP-50
Speakers:
Low frequency : 8" cone type woofer
High frequency :  2" horn tweeter
Maximum Input:  25 watts
Input Impedance:  8 Ω
Frequency Response:  50 - 20,000 Hz
Crossover:  7,000 Hz
Dimensions (H x W x D):  19-3/4" x 12-3/4" x 9-3/4"
Weight:  19,8 lbs

Sansui SP-30

 This is one of the finest compact speaker systems made today. And represent a major breakthrough in speaker design and performance. SP-30 offers a frequency response range and an input capacity far out of proportion to its compact size. SP-30 features Sansui;s exclusive pipe-duct bass reflex enclosure, special damping material and distinctive handcarved fretwork grilles.
Specifications SP-30
Speakers:
Low frequency : 6 ½" cone type woofer
High frequency :  2" horn tweeter
Maximum Input:  20 watts
Input Impedance:  8 Ω
Frequency Response:  50 - 20,000 Hz
Crossover:  7,000 Hz
Dimensions (H x W x D):  16-11/16" x 10-11/16" x 7-5/8"
Weight:  9,9 lbs

Sansui SR-2020BC

 Two-Speed Belt-Drive Manual Turntable
Sansui's most economical turntable, the SR-2020BC has been designed for use in any medium to small stereo system. It brings many of the refinements of Sansui's higher quqlity turntables within the price range of everyone; the direct belt-drive system, the quality tubular type static-balanced tonearm, the unique hydraulic cuing device, and many others.
 Featuring a large aluminum cast double rimmed platter and an induced magnetic type cartridge, the SR-2020BC brings a whole new standard of performance into the inexpensive turntable field.
Accessory Equipment:  Delay-motion oil-damped arm lifter which is controlled by the power swich lever. Stylus pressure direct reading weight

Subweight for compensation the weight of cartridge used. Plug-in spare headshell. Anti-howling insulators.
Specifications
Turntable:  aluminum alloy diecast double rim platter.
Platter Diameter / Weight:  12" / 2,4 lbs
Drive Motor:  4-pole hysteresis synchronous capacitor-starting motor
Speed:  33 and 45 rpm
Signal-to-Noise Ratio:  better than 45 dB
Wow and Flutter:  less than 0,2%
Speed-Change: speed are changed by pushing a speed selector which shifts the belt
Tonearm: Static-balanced tubular arm
Tracking Error:  less than ±1°
Stylus pressure:  0 to 2,5 grams (direct reading gram-scale with ½ gram markings)
Carteidge:  induced magnet type
Frequency Response:  15 - 20,000 Hz
Output Balance:  less than 1,5 dB
Channel Separation:  better than 30 dB at 1,000 Hz
Output Voltage:  5 mV
Standard Load Resistance:  50 k Ω
Standard Stylus Pressure:  1,5 to 2 grams
Stylus Compliance:  17 x 10¯⁶ cm/dyne
Stylus:  0,5 mils diamond spherical
Wood Base:  Wlnut open-pore finish with molded acrylic dust cover
Power Requirement / Consumption:  100 (20 VA); 117 V (19 VA); 230 V (18 VA), 50/60 Hz
Dimensions (W x H x D):   20½ " x 7" x 14
Weight:  17,6 lbs

Sansui Model 800

 AM/FM Multiplex Stereo Tuner Amplifier Solid State
This attractive solid state introduces a whole new performance standard for receivers in the medium power range.  With a new FET frontend for increased FM sensitivity, input terminals for both 75 and 300 ohms antennas, and an FM channel separation figure of better than 35 dB, it is perhaps the finest performing FM receiver ever made under 100 watts.
Its audio characteristics are also superb  a power bandwidth from 20 to 40,000 Hz, distortion factor of less than 1% at rated output and damping factor of 60 at 8 ohms.
 Other features include short-free output terminals for two complete speaker systems, a new type of noise canceler, automatic FM mono/stereo switching with indication and the latest black window design.
Specifications
Amplifier Section
Music Power (IHF):  70 watts ±1 dB at 4 Ω
Continuous Power:  28 / 28 watts ±1 dB at 4 Ω
Harmonic Distortion:  less than 1% at rated output
Power Bandwidth (IHF):  20 - 35,000 Hz at 8 Ω
Input Sensitivity:
Phono :  2,2 mV ±3 dB
Aux :  150 mV ±3 dB
Tape Monitor (PIN):  150 mV ±3 dB
Tape Monitor (DIN):  150 mV ±3 dB
Hum and Noise (IHF): 
Phono :  70 dB
Aux :  70 dB
Damping Factor:  60 at 8 Ω
FM Tuner Section
Frequency Range:  88 - 108 MHz
Sensitivity:  2 µV ±3 dB (20 dB quieting)
Sensitivity:  2,8 µV ±3 dB (IHF)
Selectivity:  better than 45 dB
Capture Ratio:  3 dB (IHF)
FM Stereo Separation:  better than 35 dB
AM Tuner Section
Frequency Range:  535 - 1,605 kHz
Sensitivity (IHF):  22 µV ±3 dB at 1 kHz
Transistors and FET:  36
Diodes :  20
Varistor :  6
Power Voltage:  100, 117, 220, 1nd 240 V, 50 Hz or 60 Hz
Power Consumption:  18 VA (zero signal)  110 VA( max signal)
Dimensions (W x H x D):  15-13/16"x 4-1/2" x 13-1/8"
Weight:  23,1 lbs

Sansui SS-2

 Stereo headphone
Complete engineering on both electronic and human levels brings a new kind of sound purity and comfort to the stereo enthusiast in the form of Sansui's Stereo Headphone set, Model SS-2.
Electronically, the SS-2 utilizes specially developed cone-paper with very high radiation characteristics to overcome a problem that has plagued stereo manufactures for years - faithful reproduction in the low-frequency ranges.  The moving coil type SS-2 shows excellent transient stability throughout the entire range of 20-18,000 Hz, with exeptional impedance and L/R balance characteristics as well as high damping factor.

Outstanding Bass Reproduction 
The cultivation of a very high-radiation cone-paper enables low-frequency reproduction all the way down to 20 Hz, a figure almost beyond the reproduction capability of a 12-inch woofer. Distortion is less than 1% at 1 mW input. 

Flat Characteristics 
The high-moving coil with its excellent transient stability, and special cone-paper with its superior vibration characteristics (70 mm in diameter) combine to completely cover the wide range of frequencies from 20 Hz to 18,000 Hz. The impedance characteristic is also excellent, allowing powerful sound reproduction with a high damping factor. 
 Right and Left Channel Balance 
The output sound pressure level is rated at lower than 1 dB for perfectly balanced stereo reproduction from both Right and Left channels. Unlike listening via speaker systems, headphone listening assures an optimum stereo effect, since Right and Left channel sounds never have the chance the interfere with each other in the air. 

Ear Pads Designed for Comfort 
The ear pad for model SS-2 are made of softly finished Vinyl-Chloride, leather-like in appearance. They have been doubly finished so that ambient heat never becomes a comfort-impairing factor. They can be worn over an extended period of time in complete comfort. 

Functional and Attractive 
The head band is completely adjustable for individual head and ear positioning.
The SS-2 is available in black and white two-tone design. 

Caution 
The SS-2 is a highly-sensitive headphone set. Its sound output is extremely high even at an input as low as one-thousandth of a watt. If the amplifier power is beyond the Maximu Rated Power Input, there is a possibility of damage. Therefore, in connecting this set directly to higher-powered amplifier the volume of the amplifier should always be reduced. 
Specifications 
Type:  Dynamic type 
Impedance:  8 ohms 
Frequency Response:  20 - 18,000 Hz 
Distortion:  less than 1% at 1 mW input 
Input Power:  1 mW 
Max.rated Power Input:  500 mW 
Diameter of Cone Paper:  70 mm 
Weight of Cone Paper:  450 mg 
Diameter of Voice Coil:  132 mm 
Length of Cord: 1,8 m (6") 
Weight (net):  360 g (12,6 oz)   

Sansui SF-2

 Omni-Radial Sound Field Speaker System
New breakthroughs in 4-channel stereo sound have created a demand for a new kind of speaker system, and now Sansui is pround to introduce a system that takes 4-channel to its thrilling sound pinnacle. The SF-2 Omni-Radial Sound Field Speaker System is not  just another omnidirectional speaker, but a completely new concept in sound-in-the-round, for it employs speakers facing both upwards and downwards sound in a full 360 degrees. 
 This 2-way 3-speaker system produces a vibrant and reverberant 4-channel sound field, for it has been designed to accurately reflect the very important, but often ignored, "indirect" sound waves of music reproduction. And these indirect waves are the vital element of the live concert hall sound field, the authentic "live" sound effect that so many speaker systems promise but so few deliver. With the SF-2, sound waves emanate with fine time differences and reach out to each corner of your listening room. No longer are these "indirect" waves overwhelmed and dissipated by the more "direct" soundwaves, thus leading to the harsh masking effect of sound reproduction. The SF-2 delivers greater sound reflection, in fact an ambience effect that adds depth and liveliness to your music - and comes very close to actually recreating the warmth and presence of the acoustically perfect concert hall. Four-channel sound reproduction is improved, for the unique top and bottom speaker arrangement does stereo wonders to bring out the best in the indirect sound of the recording.
In addition, sound diffusuion is extended in the SF-2 by the use of a new porous foam acoustic diffuser placed behind the Kumiko fretwork grille, a device which also helps to attain ideal dispersion of sound in the very high frequency range. Beautifully designed and finished, the SF-2 cabinet is made of solid natural wood and hard chipboard, specially treated to resist heat or stains. The system is actually an expensive piece of fine furniture - and looks it.  From the most respected name in stereo Sansui.
Specifications
Speaker
Woofer :  two 200 mm (8")cone type
Tweeter :  one 58 mm (2 ¼") cone type
Max. Power Input:  65 W (Peak)
Impedance:  8 Ω
Sensitivity:  90 dB (new JIS at 1 m /W)
Frequency Range:  50 - 20,000 Hz
Crossover Network:  2-way 6 dB/pct
Crossover Frequency:  2,000 Hz
Dimensions (W x H x D):  400 x 627 x 400 mm (15-3/4" x 24-11/16" x 15-3/4")
Weight:  15,5 kg (34.1 lbs) Net

FinIsh:  Open Pore