JVC R-S7 receiver

FM/AM Stereo Receiver from JVC

Features

Extra-Long tunning dial (240 mm ) for easier tuning and frequency linear in FM for faster station selection.

Double FM Muting

Tape Monitor Indicator

Internal AM Bar Aerial - AM sound is free fo noise, fuzz and whine.

50 Watts per channel, min. RMS (both channels driven into 8 ohms, 20-20,000 Hz, 0,03% T.H.D.)

Low-Noise Phono Equalizer with amazing 90 dB Signal-to-Noise Ratio

PLL Multiplex Demodulator in IC for Wide FM separation

Exceptionally High FM Signal-to-Noise Ratio bye newly developed IC

JVC's triple Power Protection

 

Two "P's" to remember - Power and Performance - for purer sound

Power and performance make this JVC model outstanding for its price. The JVC R-S7 delivers more power output for your money than any other in its class. Indeed, it drives even the most inefficient speakers with ease at low distortion of 0,03% or less. Control capabilities, looks, durably and circuitry add still more value.

 

Phono equalization is accurate with an impressive 90 dB Signal-to-Noise Ratio

Microelectronics have their place, but there's no ICs in this phono equalizer formed of discrete parts. No IC, for instance, can ensure the highs/n of 90 dB - higher than you'll find in many more expensive receivers.

Extra rugged Power Transistors for more.

The power amp of the R-S7 is a sophiosticated, fully complementary OCL type, with as many as twelve transistors in each channel. The power transistors themselves are extra rugged to provide true performance over a wide range of output. This means more musical margin.

 

Full safety is assured with JVC's triple Power Protection

This safeguards your system by providing three important functions;

1.Power On/Off shock noise never reaches speakers;

2.Speakers are electronically disconnected in the event an abnormal DC voltage appears at the terminals; speaker damage is entirely avoided; and

3.Power transistors are protected in the event of shorts, low speaker impedance or other power-related mishaps.

 

Tuner performance in FM and AM is as clean as we can make it.

The IF amps and a quadrature detector in the R-S7 are in IC from. Distortion is only 0,15% or less (mono), the Signal-to-Noise Ratio is an outstanding 82 dB, and the frequency response is 30 to 15,000 Hz. Then, for pinpoint tuning, a new 4-element ceramic filter raises selectivity to a high 65 dB. Another IC is found in the PLL (Phase-Locked Loop) FM stereo demodulator to keep distortion to a low 0,3% or less over long years of use. The AM sound is pleasant and listenable thanks to still another IC for AM RF/IF.

 

Specifications

Amplifier Section

Output Power: 

50 Watts per channel, min. RMS (both channels driven into 8 Ω  from 20-20,000 Hz, with no more more than  0,03% T.H.D.)

70 Watts per channel,  into 4 Ω  (1kHz,   0,03% T.H.D.)

55 Watts per channel,  into 8 Ω  (1kHz,   0,03% T.H.D.)

Total Harmonic Distortion (at Half Rated Power, 1 kHz, 8 Ω ):  0,008%

Intermodulation Distortion:  0,03% at Rated Output

Damping Factor:  45 at 8 Ω  from 20 - 20,000 Hz

Load Impedance:  4 - 16 Ω

Input Sensitivit/Impedance

Phono :  2,5 mV/47 k Ω

Aux, Tape :  170 mV/ 40 k Ω

Signal-to-Noise Ratio (IHF A network, Short-circuited)

Phono :  82 dB (90 dB at 10 mV input)

Aux, Tape :  100 dB

Recording Output:  170 mV

Frequency Response:  15 Hz - 50 kHz ±1,0 dB

RIAA Phono Equalization:  ±0,5 dB (20-20,000 Hz)

Phono Overload:  140 mV at 1 kHz (0,05% T.H.D.)

Tone Controls

Bass :  ±8 dB at 100 Hz

Treble :  ±8 dB at 10 kHz

Loudness Control (Volume at -40 position):  +10 dB (at 50 Hz): +4 dB (at 10 kHz)

FM  Tuner Section

Usable Sensitivity:  10,3 dBf (0,9 µV/75 Ω )

50 dB Quieting Sensitivty

Mono :  14,8 dBf (1,5 µV/75 Ω )

Stereo :  38,3 dBf (22,4 µV/75 Ω )

Stereo Separation:  45 dB at 1 kHz; 35 dB from 50 Hz to 10 kHz

Distortion:

100 Hz :  0,15% (mono); 0,3% (stereo)

1 kHz :  0,15% (mono); 0,3% (stereo)

6 kHz :  0,4% (mono); 0,8% (stereo)

Signal-to-Noise Ratio (IHF Weighted)

Mono :  82 dB

Stereo :  70 dB

Alternate Channel Selectivity:  65 dB (±400 kHz)

Capture Ratio:  1,0 dB

Image Response Ratio:  60 dB at 98 MHz

IF Response Ratio:  90 dB at 98 MHz

AM Suppression Ratio:  55 dB

Frequency Response:  30 Hz - 15 kHz (+0,5 dB -1,0 dB)

AM Tuner Section

Sensitivity:  30 µV, 300 µV/m

Selectivity:  35 dB (±10 kHz)

Signal-to-Noise Ratio :  50 dB

Dimensions (W x H x D):  450 x 149 351 mm (17" x 5-7/8" x 13-13/16")

Weight:  8,5 kg (18,7 lbs)