JVC R-S33 receiver

The JVC R-S33 is an AM FM stereo receiver FTC rated for 8 Ω at 27 watts RMS (per channel, 20-20,000 Hz at 0,03% T.H.D.) one of the primary features is JVC's SEA Graphic Equalizer, which provides ±12 dB equalization at five center frequencies: 40; 250; 1,000; 5,000; 15,000 Hz. The SEA can also be programmed to equalize the signal to the tape recorders.  One of two tape inputs is a "selected input" it could just as easily be called an auxiliary input. The switching arrangement for this tape, however, permits automatic dubbing to the second recorder. LED indicators are used for a stereo beacon, left and right output power indicators, FM center channel tuning, and Am  FM signal strength (AM tuning). The output power indicators have eight steps calibrated for 0,03 to 40 watts into 8 ohms. The output power required to illuminate any step was within ±10% of the indicated value. The frequency response of the indicators was visually flat from 20 to 20,000 Hz. The FM center channel indicator is what has become a more or less standard three-position indicator; a green LED flanked by red LEDs, with center of channel. Except for the tuning knob, all controls are the linear 9slider) type. An output hold-off prevents power supply turn-on transients from being fed to the speakers.

Only JVC gives you both Super-A amplification and graphic equalization. You'll hear Super -A as pure, natural sound. Violins, cimbals, voices and other complex, delicate sounds are smooth and airy. That's because Super-A does away with most of the measurable switching and crossover distortion a source of harshness in some conventional Class-AB receivers.

At the same time, you'll get plenty of power. The R-S33 shown here gives you 30 watts per channel minimum RMS into 8 ohms, from 20-20,000 Hz , with no more than 0,007% Total Harmonic Distortion. A regular Class-A amplifier with this kind of power would be heavy and expensive. But because it doesn't require high idling currents, the R-S33 costs and weighs about the same as a conventional receiver.

Even the most sophisticated amplifier can't correct cartridge peaks, speaker roll-off or room acoustic. Neither can it accommodate your changing tastes in sound as you take off Beethoven and put on disco. That's where JVC's 5-band SEA graphic equalizer comes in. With independent controls at 40 Hz , 250 Hz , 1 kHz, 5 kHz and 15 kHz, it lets you extend the deep bass without creating boominess. Mellow out a voice without cutting the highs. Add brightness to the extreme highs and more.

With all this, the R-S33 has plenty of other features to recommend it; direct-coupling, a sensitive tuner section with linear-phase IF filters, two tape monitors with equalizer and dubbing facilities, LED power meters, and JVC's triple power protection system.

Specifications:

FM Tuner Section

Input level 9for Full Limiting):  4,5 µV

Mono Sensitivity (60 dB Quieting):  20 µV

Stereo Sensitivity 955 dB quieting):  45 µV

FM Mute Response:  13 µV

Stereo Frequency Response Range:  30 to 15,000 Hz

Stereo Frequency Response Limits:  +0 -1 dB

Mono Distortion At Standard test level:  0,2%

Stereo Distortion at Standard test Level:  0,3%

Signal-to-Noise ratio (at Standard Test Level):  66 dB

Midband Stereo Separation:  38 dB

Alternate Channel Rejection:  very good

Amplifier Section

Power Output:  30 watts RMS

Frequency Response (at 30 watts RMS):  20 - 20,000 Hz +0 -0,3 dB

Total Harmonic Distortion:  0,008%

SEA Equalizer Range at center Frequency:  ±12 dB for all controls

Hum and Noise (magnetic input):  71 dB (3 mV In, 10 watts out)

Stereo Separation (magnetic input):  58 dB

Power Meter Accuracy (at calibrations):  ±10 %

Power Meter Frequency Response:  flat 20 -20,000 Hz

Dimensions (W x H x D):  17,1 x 4,7 x 13,6 inches

Weight:  17,8 pounds