Digital readouts and
digital circuitry. Great specs. And the best-price / performance ratio in the
business. All the right numbers. That's the new Sansui G-4700.
Double digital
Design.
The front panel of
the G-4700 has a bright electronic digital readout that shows the frequency of
the station you've selected; and behind the front panel is one of the most
advanced tuning systems in the world.
Sansui's patented
Digitally Quartz-Locked Circuit uses a precise quartz crystal time base to keep
your station locked in, even through many hours of listening or if you turn the
receiver off and back on again.
Conventional
quartz-controlled receivers use analog phase comparison circuits that can
become inaccurate because of harmonic interference. Our system uses a new LSIC
(Large Scale Integrated Circuit) digital processor that actually counts the
vibrations of the quartz crystal to compare to the tuned frequency. The
frequency is perfectly locked in the instant you find the station you want.
With the unique
Digitally Quartz-Locked system, the G-4700 delivers high sensitivity , a better
Signal-to-Noise ratio, and a better spurious rejection ratio.
DC Power Amplifier.
Power is ample for
almost any speaker made, with 50 watts per channel, min. RMS, both channels
driven into 8 ohms from 20 Hz to 20 kHz with no more than 0,05% Total Harmonic
Distortion.
And the wide
bandwidth DC power amp circuit responds quickly to transient music signals for
the most accurate and pleasing music reproduction. What you hear is clean and
sharp, just the way it was recorded.
Electronic LED Power
Meters
Don'r worry if you
present speakers can't handle 50 watts. The array of fast-actling LED's on the
Sansui G-4700 lets you monitor and control the output level so you don't damage
your speakers.
Electronic Tuning
Meters.
Two fluorescent
readouts help to zero-in on each station with accuracy and ease. Both the
signal strength and center-tune indicators operate digitally for precise
station selection, and the nearby LED verifies that the quartz circuit has
locked in your station.
Superb Human
Engineering.
A full complement of
genuinely useful knobs, switches and jacks gives you complete control over what
you hear and how you hear it.
Audio Section
Power Output (min.
RMS, both channel driven, 20-20,000 Hz, no more than 0,05% T.H.D.): 50
watts per channel into 8 ohms
Load Impedance:
8 ohms
Total Harmonic
Distortion : less than 0,05% at or below rated min. RMS power output
Intermodulation
Distortion (70 Hz : 7 kHz = 4 : 1 SMPTE method): less than 0,05% at rated
power output
Frequency Response (
Overall from Tape/AUX, at 1 watt): 10 Hz to 70,000 Hz, +1,0 dB, -2,0 dB
RIAA Curve Deviation
(Phono, 30 Hz - 15 kHz): +0,5 dB, -0,5 dB
Damping Factor (1
kHz, both channel driven): 30 into 8 ohms
Input Sensitivity/
Impedance:
Phono 1 : 2,5
mV/47 k Ω (max. input capability : 200 mV at 1 kHz, less than 0,5%
T.H.D.)
Aux, Tape : 150 mV/47 k Ω
Output Level (at 1
kHz):
Tape Rec (Pin jacks)
: 150 mV
Hum and Noise
(short-circuit, A-network):
Phono : 76 dB
Aux, Tape : 95 dB
Channel Separation
(at 1 kHz)
Phono : 50 dB
Aux, Tape : 50 dB
Controls
Bass : ±10 dB
at 50 Hz
Trebele : ±10
dB at 10 kHz
Susbsonic Filter:
-3 dB at 18 kHz (6 dB/oct)
High Filter :
-3 dB at 3 kHz (6 dB/oct)
Loudness (Volume
control -30 dB position): 9 dB at 50 Hz ; 6 db at 10 kHz
FM Tuner Section
Tuning Range:
88 to 108 MHz
Usable Sensitivity:
Mono
[IHF/DIN]: 10,8 dBf (1,9 µV) / 1,2 µV
Stereo IHF :
19 dBf
50 dB Quieting
Sensitivity:
Mono : 15 dBf
Stereo : 38
dBf
Signal-to-Noise Ratio (at 65 dBf):
Mono : 75 dB
Stereo : 70 dB
Distortion (at 65
dBf) Mono :
at 100 Hz :
less than 0,18%
at 1 kHz :
less than 0,15%
at 6 kHz :
less than 0,25%
Distortion (at 65
dBf) Stereo :
at 100 Hz :
less than 0,3%
at 1 kHz :
less than 0,25%
at 6 kHz :
less than 0,3%
Alternate Channel
Selectivity (at 400 khz): 50 dB
Capture Ratio:
1,0 dB
Image Response
Ratio: 48 dB
Spurious Response
Ratio: 70 dB
IF Response Ratio:
90 dB
Stereo Separation:
30 dB at 100 Hz
40 dB at 1 kHz
28 dB at 10 kHz
Frequency Response:
30 to 15,000 Hz
Antenna Input
Impedance: 300 Ω (balanced); 75 Ω (unbalanced)
AM Tuner Section
Tuning Range:
530 to 1,600 kHz
Usable Sensitivity
(bar antenna): 50 dB/m (300 µV/m)
Selectivity (±10
kHz): 33 dB
Signal-to-Noise
Ratio: 46 dB
Distortion (at 30%
Modulation, 80 dB/m): less than 0,5%
General Section
Power Requirements:
100, 120, 220, 240 V, 50/60 Hz
Power Rated
Consumption: 160 watts, 190 VAC
Dimensions (W x H x
D): 433 x 155 x 355 mm (17-1/16" x 6-7/8" x 14")
Weight: 8,6 kg
(19 lbs) net