Kenwood KR-3200 receiver

 Kenwood KR-3200

FM/AM Stereo Receiver

Stereo Sophistication for Music Lovers on a Budget

For a stereo receiver with audiophile sophistication at a moderate price, look no farther than the Kenwood KR-3200. This remarkable unit delivers ample power to drive two sets of stereo speakers. It provides a control center for a complete stereo system, including Phono, Auxiliary and Tape Deck. It also incorporates many of the same fine features found on Kenwood’s far more expensive units, to give you operating convenience and flexibility. Like all fine Kenwood products, the KR-3200 reflects Kenwood's meticulous engineering and stringent quality control in its high performance level and extraordinary dependability. In every respect, the Kr-3200 proves itself a remarkable stereo value.

Newly-Developed DSD Circuitry – Kenwood’s exclusive Double-Switching Demodulator in the MPX circuit appreciably improves stereo separation. A new block filter design efficiently reduces beat interference and intermodulation distortion due to carrier leakage, greatly improving FM de-emphasis characteristics.

Super Low-Noise Preamplifier – Kenwood incorporates new PNP silicon low-noise transistors in the preamp stage to assure low-noise performance and circuit reliability.

Power Amplifier Section – The KR-3200 boasts a wide frequency response with exceptional flatness to deliver stereo reproduction on the highest fidelity. Damping factor is excellent, especially at the lower frequencies.

Linear Frequency Dial Scale – Because the KR-3200 employs a linear frequency variable capacitor, the FM dial scale is equally graduated from 88 to 108 MHz, allowing quick, accurate tuning from one end of the dial to the other.

Large, Luminous Tuning Meter – An extra-large, bright Signal Strength Meter provides an easy read-out of optimum reception point for easy tuning accuracy.

One-Touch Speaker Terminals – Connecting the two sets of stereo speakers is as easy as pushing a button with these newly-designed, short-circuit-proof speaker connectors.

Step-Type Tone Controls – Precise and resettable tonal balance can be achieved by means of Bass and Treble Tone Controls calibrated in 2 dB increments from +10 dB to -10 dB

Other Features – Loudness Control; Noise Filter; Tape Monitor; Front Panel Headphone Jack; 300 and 75 ohm antenna impedance

Specifications

FM Tuner Section

Sensitivity (IHF):  2,3 µV 

Quieting Slope:  48 dB  at 5 µV ; 60 dB  at 10 µV ; 63 dB  at 50 µV 

Signal-to-Noise-Ratio:  63 dB 

Capture  Ratio (IHF):  3,5 dB 

Selectivity  Ail. Ch (IHF):  50 dB 

Frequency Response:  20 – 15,000 Hz (+0,5 -2,0 dB)

Stereo Separation:  53 dB at 1 kHz; 20 dB at 10 kHz

Total harmonic Distortion: (at 400 Hz, 100% Mod.)

Mono :  0,5%

Stereo :  0,9%

Image Rejection:  60 dB 

IF Rejection:  90 dB 

Harmonic Spurious Rejection:  80 dB 

AM Suppression:  60 dB 

Sub-Carrier-Suppression:  45 dB 

Antenna Impedance:  300 Ω  and 75 Ω 

AM Tuner Section

Sensitivity (IHF):  24 µV 

Signal-to-Noise-Ratio:  45 dB at 1 mV input

selectivity (IHF):  30 dB 

image Rejection Ratio:  45 dB 

IF Rejection:  35 dB  

Antenna:  Built-in ferrite bar antenna, External antenna terminals

Amplifier Section

Continuous Power Output (RMS)

Both Channels Driven Simultaneously

27 watts (13,5 + 13,5) at 8 Ω  from 50 Hz – 20 kHz

34 watts (17 +17) at 8 Ω  1 kHz 

40 watts (20 + 20) at 4 Ω  1 kHz 

Each Channel Driven

24/24 watts at 4 Ω at 1 kHz 

18,5/18,5 watts at 8 Ω  at 1 kHz 

Dynamic Power Output (IHF)

Both Channels Driven

60 watts at 4 Ω 

42 watts at 8 Ω 

Total harmonic Distortion: 

Less than 1,3% at rated output

Less than 0,2% at -3 db

Intermodulation Distortion:

Less than 1,3% at rated output

Less than 0,2% at -3 dB 

Frequency Response: 

High Level Input:  25 – 35,000 Hz (±2 dB)

Power Bandwidth (IHF):  25 – 25,000 Hz

Input Sensitivity/Impedance

Phono :  3 mV/50 k Ω 

Aux :  180 mV/30 k Ω 

Tape Play :  200 mV/45 k Ω 

Hum and Noise

Phono :  63 dB 

Aux :  75 dB 

Tape Play :  75 dB 

Output Voltage

Tape Rec :  180 mV

DIN Connector :  30 mV

Tone Controls

Bass :  ±10 dB  at 100 Hz 

Treble :  ±10 dB  at 10 kHz 

Loudness Control:

± 10 dB  at 100 Hz 

+0 dB  at 10 kHz 

Noise Filter: -10 dB  at 10 kHz 

Damping Factor (8 Ω ):  50

Speaker Impedance:  4 to 16 Ω 

General

Switches

Speakers:  Off, A, B, A + B

Selector:  AM, FM, Phono, Aux,

Mode:  Mono-Stereo

Others:  Tape Monitor, Noise Filter, Loudness

AC Outlets:  1 switched, 1 unstitched

Power Voltage:  110 – 120 V AC, 50/60 Hz 

Power Consumption:  85 watts at full power; 20 watts at no signal

Dimensions (W x H x D):  17-1/8” x 5-3/4” x 13-5/8”

Weight:  18 lbs

Cybernet SRC-80 receiver

SRC-80 Integrated Stereo Receiver - The Slimline Series SL-80

Amplifier Section Features:

Direct coupled OCL circuitry

Wide, dynamic range phono equalizer amplifier

Loudness compensation

High and low filters

Moving magnet and moving coil cartridge capability

Detented tone controls

41 detent volume control

Two tape monitors with 2-way dubbing

Instant audio mute switch

 

Tuner Section Features

Quartz controlled frequency synthesized tuning

Fluorescent digital display

14 programmable preset station selection and indicators

Automatic scanning

Sensitive dual gate MOS FET in FM front end

Highly selective IF section with 3 dual element ceramic filters

PLL multiplex decoder

LED signal strength and auto stereo indication

Last channel memory circuit

 

Specifications

Amplifier Section

Power Output:  50 W + 50 W (20 - 20,000 Hz) at 8 Ω

Total Harmonic Distortion (rated power at 20-20,000 Hz):  0,08% at 8 Ω

SMPTE Intermodulation Distortion:  0,08%

Frequency Response:  20 - 20,000 Hz ±0,5 dB

Power Bandwidth:  7 - 35,000 Hz _3 dB

Input Sensitivity/Impedance

Phono MM :  2,5 mV/47 k Ω

Phono MC :  100 µV/47 K Ω

Others :  150 mV/47 k Ω

Huma and Noise Ratio

Phono MM :  73 dB

Phono MC :  62 dB

Others :  93 dB

Maximum Input Voltage

Phono MM :  150 mV

Phono MC :  6 mV

Damping Factor:  40 (8 Ω , 1 kHz)

Tone Controls

Bass :  ±10 dB at 100 Hz

Treble :  ±10 dB at 10 kHz

Loudness Compensation +7 dB (at 100 Hz) +3,5 dB (at 10 kHz)

Filters

High :  10 kHz (6 dB/oct)

Low :  40 Hz (6 dB/oct)

Audio Mute:  -20 dB

Tape Recording Output :  130 mV (at rated input sensitivity)

FM Section

Tuning Range:  87,5 to 108 MHz

Usable Sensitivity: 

Mono :  10,9 dBf

Stereo :  20 dBf

50 dB Quieting Sensitivity

Mono :  18 dBf, 4,4 µV (IHF)

Stereo :  40 dBf, 54,7 µV (IHF)

Total Harmonic Distortion

Mono :  0,15%

Stereo :  0,3%

Alternate Channel Selectivity:  60 dB (±400 kHz)

Capture Ratio:  2 dB

Selectivity )±400 Hz):  60 dB

Stereo Separation(at 1 kHz):  45 dB

Audio Frequency Response:  30 Hz - 15 kHz (±0,5 dB)

Signal-to-Noise Ratio: 

Mono :  70 dB (A-weighted)

Stereo :  65 dB (19/38 kHz filtered)

Spurious and IF Rejection:  70 dB

Image Rejection:  45 dB

Subcarrier Ratio:  65 dB

Tuning Frequency Space:  50 kHz

Antenna:  75 /300 Ω

AM Section

Tuning Range:  531 to 1,602 kHz

Sensitivity (loop Antenna):  350 µV/m (S/N=20 dB)

Image Rejection:  45 dB (600 kHz)

Alternate Channel Selectivity:  45 dB (20 kHz)

Distortion: 0,5%

Signal-to-Noise Ratio:  45 dB

Antenna:  Built-in adjustable ferrite bar, and provision for ext. Antenna

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

Dimensions (W x H x D):  430 x 106 x 390 mm (16-15/16" x 4-3/16" x 15-3/8")

Weight:  12,3 kg

 

kenwood KR-2300 receiver

AM/FM Stereo Receiver

The Component That proves Quality Need not Be Expensive

Kenwood has designed the KR-2300 to prove that a quality component need not be beyond the reach of the budget-minded audiophile. With specifications and control features that are truly astounding, the KR-2300 looks and performs like a far more expensive unit, even down to such luxury features as "mike mixing" in any mode. Compare its specifications. Compare its fine features with other, more expensive units. Then, listen to the KR-2300 yourself.

You'll really appreciate how much receiver Kenwood offers for the price.

 

"Mike Mixing" In any mode

A unique features that will certainly add to your stereo enjoyment, Mike Mixing permits you to blend your own voice or instrumental accompaniment with sound from any other program source. Microphone jack and level control are positioned on the front panel for convenience

 

Specifications

FM Tuner Section

Usable Sensitivity (IHF):  2,5 µV

Signal-to-Noise Ratio (IHF):  better than 60 dB

Capture Ratio (IHF):  4.0 dB

Selectivity, Alt Ch. (IHF):  40 dB

Stereo Separation: 30 dB at 1 kHz

Total Harmonic Distortion (400 Hz, 100% Mod.)

Mono :  0,8%

Stereo :  1,0 %

Image Rejection:  50 dB

IF Rejection Ratio:  95 dB

Spurious Signal Rejection:  80 dB

AM Suppression Ratio:  45 dB

Sub-Carrier Suppression:  40 dB

Antenna Impedance:  300 Ω (balanced) 75 Ω  (unbalanced)

Front End:  1 FET, 3 Gang

AM Tuner Section

Usable Sensitivity (IHF):  25 µV

Signal-to-Noise Ratio:  45 dB

Selectivity (IHF):  25 dB

Image Rejection Ratio:  45 dB

IF Rejection Ratio:  35 dB

Antenna:  Built-in ferrite bar antenna and external antenna

Front End:  2 gang

IF Stage:  2 Gang

Amplifier Section

RMS Power Output

Both Channels Driven

2 x 14 watts into 8 Ω  at 1 kHz

2 x 15 watts into 4 Ω  at 1 kHz

Each Channel Driven

2 x 17 watts into 8 Ω  at 1 kHz

2 x 22 watts into 4 Ω  at 1 kHz

Dynamic Power Output

44 watts into 8 Ω

64 watts into 4 Ω 

Total Harmonic Distortion

1% at rated power output, 0,2% at 1/2 rated power into 8 Ω  at 1 khz

Intermodulation Distortion:  1% at rated output

Frequency Response:  25 - 50,000 Hz ±2 dB

Power Bandwidth (IHF):  30 - 50,000 Hz

Damping Factor:  30 at 8 Ω

Input Sensitivity/Impedance (for rated output)

Phono :  3 mV/50 K Ω

Aux, Tape Play:  120 mV/30 k Ω

Mic. :  4,5 mV/20 K Ω 

Signal-to-Noise Ratio

Phono :  65 dB

Aux, Tape Play :  70 dB

Mic :  60 dB

Tone Controls

Bass :  ±8 dB at 100 Hz

Treble :  ±8 dB at 10 kHz

Loudness Control (at -30 dB):  +8 dB at 100 Hz

General

Switches speakers:  Power Off, A, B, A + B, Phones

Mode:  Mono, Stereo

Selector:  AM, FM Auto, Phono, Aux

Others Switches:  Tape Mon, Loudness, Mic Jack with VR

AC Outlets:  1 switched and 1  unswitched

Power Requirements:  110-120 V, AC 50/60 Hz

Power Consumption:18 watts at no signal,  (110 watts at full power output)

Dimensions (W x H x D):  450 x 133 x 335 mm (17-3/4" x 5-5/8" x 13-7/8")

Weight:  9,4 kg (20,7 lbs)

 

Kenwood KR-2200 receiver

FM/AM Stereo Receiver

Brilliant Stereo performance, Amazing Stereo Value.

Ideal for den, dorm, or as the electronic center of a second stereo system in your home, Kenwood's KR-2200 receiver boasts performance specifications and control features that belie its budget price. Convinced that a lower powered receiver need not sacrifice sound quality within its ratings, Kenwood engineers have come up with a receiver whose technical specifications and features will truly astound you. If 30-watts of dynamic )IHF) power is all you need or can afford, the KR-2200 will give you the most for your stereo investment.

 

Power Amplifier Section

Harmonic and intermodulation Distortion of the power amplifier section of the KR-2200 is less than 0,8% at rated output, and the amplifier can handle any speaker impedance from 4 Ω  to 16 Ω . At normal listening levels, distortion is actually less than 0,2%

Mike Mixing In any mode

A unique features that will certainly add to your stereo enjoyment, Mike Mixing permits you to blend your own voice or instrumental accompaniment with sound from any other program source. Microphone jack and level control are positioned on the front panel for convenience

Sophisticated Controls for your sound system

The KR-2200 provides a broad range of controls to give you complete mastery over your sound system. Beside the individual bass and treble tone controls, a dual concentric Volume/Balance Control enables you to set up precise channel balance in addition to controlling overall loudness. A Speaker Selector Switch activates two pairs of stereo speaker systems, either individually or simultaneously , to let you enjoy stereo in different locations. An input Selector chooses AM, FM Auto, FM Mono, Phone, or Tape/Aux, while a Loudness Compensation Switch permits low-level listening.

FM Tuner Section

A FET (Field Effect Transistor) in the specially-designed front end, a three-section tuning system, and a permanently aligned mechanical IF filter give the KR-2200 an IHF sensitivity of 2,5 µV with a Signal-to-Noise Ratio of better than 60 dB. With an FM stereo separation of 30 dB at 1000 Hz and a spurious signal rejection of 80 dB, you can be sure of clean, interference-free FM reception of all your favorite FM stations.

Other Features

Front Panel Jack for Stereo headphones;

Signal Strength Tuning Meter

Luminous Dial Pointer for easy tuning

Pin and DIN Connector for Tape Deck

1 Switched AC Outlet

 

Specifications

FM Tuner Section

Sensitivity (IHF):  2,5 µV

Signal-to-Noise Ratio:  60 dB

Capture Ratio (IHF):  4.0 dB

Selectivity, Alt Ch. (IHF):  40 dB

Stereo Separation: 30 dB at 1 kHz

Total Harmonic Distortion (400 Hz, 100% Mod.)

Mono :  0,8%

Stereo :  1,0 %

Image Rejection:  50 dB

IF Rejection Ratio:  95 dB

Harmonic Spurious Rejection:  80 dB

AM Suppression Ratio:  45 dB

Sub-Carrier Suppression:  40 dB

Antenna Impedance:  300 Ω

AM Tuner Section

Sensitivity (IHF):  25 µV

Signal-to-Noise Ratio:  45 dB

Selectivity:  25 dB

Image Rejection Ratio:  45 dB

IF Rejection Ratio:  35 dB

Amplifier Section

Continuous Power Output

Both Channels Driven

16 watts :  8 W + 8 W at 8 Ω  from 50 - 20,000 Hz

17 watts :  8,5 W + 8,5 W at 4 Ω  at 1 kHz

Each Channel Driven

11/11 watts at 4 Ω  at 1 kHz

10/10 watts at 8 Ω  at 1 kHz

Dynamic Power Output (IHF)

Both Channel Driven

30 watts at 4 Ω

26 watts at 8 oh

Total Harmonic Distortion

0,8% at rated output

0,2% at -3 dB

Intermodulation Distortion

0,8% at rated output

0,2% at -3 dB

Frequency Response:  25 - 35,000 Hz ±2 dB

Power bandwidth (IHF):  30 - 20,000 Hz

Input Sensitivity/Impedance (for rated output)

Phono :  3 mV/50 K Ω

Aux, Tape Play:  120 mV/30 k Ω

Mic. :  4,5 mV

Hum and Noise

Phono :  60 dB

Aux, Tape Play :  70 dB

Mic. :  60 dB

Tone Controls

Bass :  ±8 dB at 100 Hz

Treble :  ±8 dB at 10 kHz

Loudness Control"  +8 dB at 100 Hz

Damping Factor:  45 at 8 Ω

General

Switches speakers:  Power Off, A, B, A + B, Phones

Tone Controls:  2 dB Step-Type, Bass, Treble

Selector:  AM, FM Auto, FM Mono, Phono, Tape/Aux

Front Panel Jacks: Phones, Microphone

Level Control: Microphone Mixing

AC Outlets:  1 unswitched

Power Requirements:  110-120 V, AC 50/60 Hz

Power Consumption:  56 watts at full power output

Dimensions (W x H x D):  17-5/8" x 4-3/4" x 15-1/8"

Weight:  13,4 lbs

Walnut Cabinet:  Included

 

Fisher 500-TX receiver

AM/FM Stereo Receiver, with Four methods of Tuning

Engineering leadership of thirty two years in creating the finest receiving equipment has reached its culmination in the Fisher 500-TX. This powerful AM-FM Stereo Receiver is truly the connoisseur's dream, incorporating every state-of-the-art. Feature,

 

Four method of Tuning

Manual - Fisher's ultra-smooth flywheel mechanism assures effortless AM and FM tuning across the large, illuminated, easy-to-read dial scale

Pushbutton - Fisher's Tune-O-Matic Memory Tuning provides instant selection of any one of your four favourite FM stations, simply by pushing a button. This is accomplished by four separate tuning mechanisms and four individual dials with separate control knobs on the front panel. Perfectly matched varactor diodes (variable capacitance or "tuning" diodes) select the exact frequency to which each memory is pre-set, assuring precise tuning each time the station is selected. Drift or deviation from the pre-set position is avoided, since the signal frequency is "locked-in" by AFC.

AUTOSCAN Touch Tuning - is the remarkable FM tuning mode which affords effortless scanning of the FM band in both directions, at the touch of a button. Completely electronic with no motors or moving parts, this unique circuit uses the same varactors previously described to tune either one station at a time, or station after station in continuous sequence. Autoscan tunes in complete silence and will lock onto each station with unerring accuracy, to  degree unmatched by any conventional tuning method.

Remote Control - Station selection using the Autoscan circuit may also be accomplished by means of an accessory unit (Fisher RK-30) which provides convenient tuning from a remote position in the listening area. The RK-30 is a hand-held remote control with 20 feet of flexible cable which permits the user to select stations without leaving his seat.

 

Highest Sensitivity

The sensitivity of the 500-TX, is rated at 1,7 µV, representing the all-important factor in the outstanding ability of the tuner to provide strong and clear reception of even the weakest signals. The FM front end consists of a 4-gang circuit incorporating four newly developed varactor diodes plus dual-gate MOSFETs in the RF and mixer stages. A highly efficient AGC circuit effectively prevents overload and distortion in very strong signal areas, such as cities, even though signals as high as one volt are received.

 

Highest Selectivity

Clean reception of weak, distant stations located adjacent in frequency to very strong local stations is provided by a crystal filter in the FM-IF stage of the tuner. Previously available only in the most expensive communications and military receivers, this filter is utilized to its fullest advantage in the 500-TH to pull in distant stations with "crystal" clearness. A distinct advantage of crystal filters, as compared with conventional filter coils, is that they never need alignment.

The AM-IF section is equipped with a 4-resonator ladder-type ceramic filter of exceptionally high selectivity. This filter assures vastly improved reception of distant AM stations and, in addition, eliminates annoying whistles. It provides optimum bandwidth for vastly superior AM reception

The AM section also features a 3-gang variable capacitor, a tuned RF and a mixer section using a newly developed dual-transistor circuit to minimize noise and prevent overloading.

 

Specifications

FM Tuner Section

Usable Sensitivity (IHF Standard):  1,7 µV

Harmonic Distortion (at 400 Hz, 100% Mod.):  less than 0,4%

Signal-to-Noise Ratio (at 100% Mod. 1 mV input):  65 dB

Selectivity Alternate Channel:  70 dB

Spurious Response rejection (at 100 MHz):  100 dB

Image Frequency Rejection (at 100 MHz):  65 dB

IF Frequency Rejection (at 100 MHz):  80 dB

FM Stereo Separation (at 400 Hz):  38 dB

Capture ratio (IHF at 1 mV):  1,5 dB

AM Tuner Section

Sensitivity:  10 µV

Selectivity (at 1 MHz and ±10 kHz):  80 dB

Image Frequency Rejection (at 1 MHz):  70 dB

IF Frequency Rejection (at 1 MHz):  65 dB

Amplifier Section

Music Power (at 1 kHz, 8 Ω ):  200 watts ±1 dB

IHF Dynamic Power (8 Ω ):  75/75 watts

RMS Power (at 1 kHz, 8 Ω ):  65 /65 watts

Total Harmonic Distortion (at 1 kHz):  0,5%

Intermodulation DIstortion (60/7000 Hz, 4;1, smpte):  0,8%

Power bandwidth (IHF, 8 Ω ):  8 to 35,000 Hz

Sensitivity (rated output at 8 Ω )

Phono Low :  2,5 mV

Phono High :  10,0 mV

Auxiliary :  250 mV

Monitor :  300 mV

Recorder Output (30% FM Mod.):  400 mV

Hum and Noise (below rated output)

Volume at Minimum :  -90 dB

Phono Low (6-mV ref.):  -60 dB

Auxiliary (400-mV ref.):  -65 dB

Frequency Response

Phono Low :  30 to 15,000 Hz ±2 dB

Auxiliary :  20 to 25,000 Hz ±1,5 dB

Power Amplifier Section :  15 to 40,000 Hz ±1,5 dB

Maximum Input Signal (at 1% T.H.D.)

Phono Low :  50 mV

Auxiliary :  4,5 volts

Input Impedance

Phono Low :  50 k Ω

Auxiliary :  175 k Ω

Damping Factor (1 kHz, 8 Ω ):  better than 30

Control Tracking Error (0 to -50 dB):  less than 2 dB

Separation (at 1 kHz)

Phono :  better than 45 dB

Auxiliary :  better than 50 dB

Controls

Bass :  24 dB at 50 Hz

Treble :  24 dB at 10 kHz

Subsonic Filter:  12 dB /pcatve below 10 Hz

Low-Frequency Filter (12 dB/octave):  -3 dB at 50 Hz

High-Frequency Filter (12 dB/octave):  -3 dB at 5,000 Hz

General

Power Supply:  100-120 AC, 50/60 Hz

Power Consumption:  Max. 240 watts / 320 VA

Dimensions (W x H x D):  16-7/8" x 4-13/16" x 14-1/2"

Weight:  30 lbs

 

Kenwood KR-70 receiver

Stereo Receiver, the best in FM reception. The finest in stereo sound

New from Kenwood, stereo receiver designed for the FM buff who demands the finest in broadcast reception and who also enjoys the luxury of a complete stereo system. Two integrated circuits IF stage and 2 FETs in the FM front-end, coupled with a 4-gang tuning condenser, provide better than average sensitivity, superior alternate channel selectivity and freedom from noise and interference. Silent, automatic switching from mono to stereo activates a stereo indicator light. A power output of 75 watts (IHF) at 4 Ω  and 56 watts at 8 Ω , inputs to accommodate phonograph, tape deck, and auxiliary, 2 pairs of stereo speaker terminals, plus center channel output, with output switch to control speakers individually or together, and Kenwood's famous U.S. patented power transistor protection circuit are among the features that account for the high performance characteristics of the KR-70. the best in broadcast reception, the highest standards in stereo componentry - all at the delightfully low price, including cabinet.

 

Special features

2 Integrated Circuits FM IF Stages

2 Field Effect Transistors (FET)

4-gang Tuning Condenser Super-sensitive Front-end

New "Luminous Dial";

Tuning Meter and FM Stereo Indicator

Solid State Time Switching FM Multiplex Demodulator and Automatic Stereo Mode Silent Switching Circuit

Unique keyboard Controls Regulate Loudness Control

Noise Filter

Tape Monitor and Mode

Front Panel Dubbing/Tape Recording Jack and Stereo headphone Jack

Silicon Power Transistor Amplifier (U.S. Pat. 3277385)

Power Transistor Protection Circuit

2 pair of Stereo Speaker Output Terminals for 2 Sets of Stereo Speakers and Front Panel Speaker Selector Switch (A speakers, B speakers, A-B speakers, Headphones)

Center Channel Output

Handsome Simulated Walnut Finish Cabinet Included in the price of Unit

 

Specifications

FM Tuner Section

Sensitivity (IHF):  1,9 µV

Total Harmonic Distortion: less than 0,8% (400 Hz, 100% Mod.)

Signal-to-Noise Ratio: better than 60 dB

Capture Ratio:  2,5 dB

Image Rejection:  better than 70 dB

IF Rejection:  better than 80 dB

Selectivity:  45 dB (alt. Channel)

Stereo Separation:  better than 35 dB at 1,000 Hz

IF Stage:  2 ICs, 2 Transistors

Front-end:  2 FETs, 4-gang tunig condenser

Spurious Radiation:  less than 34 dB (50 µV)

Antenna Impedance:  300 Ω  balanced

Amplifier Section

Total Music Power (IHF):

75 watts at 4 Ω

56 watts at 8 Ω

Continuous Power Each Channel Driven:

33/33 watts at 4 Ω

24/24 watts at 8 Ω

Both Channel Driven:  18/18 watts at 8 Ω 

Total Harmonic Distortion :  less than 0,5% at rated output

Intermodulation Distortion :  less than 0,5% at rated output

Frequency Response

High Level Input:  20 Hz to 30,000 Hz ±1,5 dB

Power Bandwidth (IHF):  20 Hz to 30,000 Hz

Input Sensitivity (for rated output)

Mag :  2,0 mV

Aux :  200 mV

Tape Play (PIN) :  200 mV

Tape Play (DIN) :  200 mV

Recording Output:

PJN :  200 mV

DIN :  35 mV

Dubbing :  200 mV

Max. Input Signal:  180 mV (p-p 1,000 Hz) at mag Input

Hum and Noise (below rated output)

Phono 9Mag) :  60 dB

Aux :  70 dB

Tape Play :  70 dB

Noise at Minimum Volume Control:  less than 1,5 mV at 8 Ω  or 0,26 microwatt

Damping Factor:  23 at 8 Ω

Speaker Impedance:  4, 8, 16 Ω

Bass Control:  ±10 dB at 100 Hz

Treble Control :  ±10 at 10,000 Hz

Noise Filter:  3,000 Hz cut-off

Loudness Control (at -30 dB):  +8 dB at 100 Hz, +3 dB at 10,000 Hz

Power Requirements:  AC 110 - 120 V, 50/60 Hz

Power Consumption:  113 watts at full power (20 watts at no signal)

Dimensions (W x H x D):  16-1/2" x 5-1/2" x 12-1/2"

Weight:  21 lbs

 

Toshiba SA-504 4-ch receiver

4-channel FM/AM/FM Stereo receiver, features:

BTL circuit (53 W x 2,8 rms, 8 Ω , 0,8%)

ITL-OTL-OCL pure complementary symmetry circuit

MOS FETs FM front end

4-gang linear frequency FM tuning condenser and tuned RF AM section

Built-in condenser cartridge equalizing circuit

Built-in QM and SQ 4-channel matrix decoder

CD-4 4-channel adaptor terminals

Black dial

Natural Walnut cabinet

 

Specifications

FM Tuner Section

Tuning Range :  88 - 108 MHz

Sensitivity: 1,8 µV (IHF)[1,8 µV, S/N=30 dB]

Signal-to-Noise Ratio:  66 dB

Capture Ratio:  1,5 dB

Image Rejection:  60 dB

IF Rejection:  80 dB

Spurious Rejection:  100 dB

AM Suppression:  50 dB (IHF)

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

Harmonic Distortion:

Mono :  0,2% at 400 Hz (100% modulation)

Stereo :  0,5% at 400 Hz (100% modulation)

FM Stereo Separation:  35 dB at 1,000 Hz

19 kHz, 38 kHz Suppression:  50 db

AM Tuner Section

Tuning Range:  530 - 1605 kHz

Sensitivity :  15 µV (IHF)

Signal-to-Noise Ratio:  45 dB

Selectivity :  30 dB (±10 kHz)

Overload :  2 V/m at 1,000 Hz

IF Rejection:  70 dB

Harmonic Distortion :  1 %

Audio Section

Power Output:  30 W x 4 (rms 0,4%, 8 Ω , each channel driven) or 53 W x 2 (at BTL connection, rms 0,4%, 8 Ω , each channel driven)

Frequency Response:  20 - 40,000 Hz 12 dB

Power bandwidth:  10 - 80,000 Hz (IHF, 0,4%)

Signal-to-Noise Ratio

Phono :  65 dB

Aux :  80 dB

Input Sensitivity/Impedance (for rated output):

Phono :  2,5 mV/47 K Ω

CC :  30 mV/70 k Ω

Aux :  160 mV/47 K Ω

Tape :  160 mV/47 K Ω 

Damping Factor:  20 at 8 Ω

Tone Control:  ±10 dB at 100 Hz and/or 10 kHz

High Cut Filter:  6 dB /oct, fc = 9000 Hz

Low Cut Filter:  6 dB/oct, fc = 30 hz

Residual Noise:  1,5 mV or less

Loudness Control:  +10 dB (ay 100 Hz); +4 dB (at 10 kHz)

Total Control

Volume :  4-gang, co-axial

Tone Control : Bass and treble for each Front and Rear channel :  4-gang, co-axial

Balance :  4 (discrete)

Selector :  AM/FM auto/Phono/Aux 1 (4-ch)/ Aux 2 (4-ch)

Mode :  Mono/Stereo/4-ch 1 (QM)/4-ch 2 (SQ)/4-ch 3 (discrete)

Power/ Speaker Switch :  PWR Off/A (4-ch)/SP Off ]/B (2-ch)/A+B

Accessory Switch :  CC/Mag; Tape monitor, FM muting, Loudness, AFC, audio mute; Hi/Lo cut

Antenna

FM :  300/75 Ω  terminals

AM :  Ferrite core antenna, external antenna terminals

Connector :  Aux (4-ch), Phono (Mag/CC), Rec /P.B. (4-ch), 2-AC outlet, Headphone (frontand rear) pre-out/main-in

Accessory Circuit:  Circuit breaker for final stage FM muting, audio muting, signal strength meter, center-zero meter

Semiconductors:  5 ICs; 3 FET, 38 Transistors; 24 Diodes

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

Cabinet:  Natural walnut

Dimensions (W x H x D):  508 x 125 x 356 mm (20" x 4-7/8" x 14")

Weight:  15 kg (33 lbs)