900+

900+

Quadraphonic Receiver (45 watts x 4)

Sold from 1974 until 1975

Made in: USA

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Product Specifications

MSRP U.S.
$749.95 each
Dimensions (H x W x D)
6-1/4 x 20-1/8 x 17
Sensitivity
FM – 1.8 microvolts, IHF
Sensitivity
AM – 300 microvolts/meter
Signal-to-Noise Ratio
70dB
Capture Ratio
FM... 1.6dB
Image Rejection
-90dB
Spurious Response Rejection
-90dB
Multiplex Separation
37dB
Total Harmonic Distortion
MONO – 0.4%
Total Harmonic Distortion
STEREO – 0.5%
Alternate Channel Selectivity
60dB
Antenna Terminals
300 ohms and 75 ohms
IF Rejection
Better than 60dB
Selectivity
Better than 35dB
AM Rejection
FM... 60dB
Amplifier Power (RMS)
4 x 32 watts, continuous, @ 8 ohms (20 – 20kHz < 0.5% THD)
Power Bandwidth
<10 to beyond 40kHz @ 8 ohms
Total Harmonic Distortion
< 0.5% @ any power rating from .1 watt to full power
Transient Intermodulation Distortion (TIM)
< 0.15% @ rated output
Damping Factor
30...1 @ 8 ohms
Frequency Response
from below 4Hz to beyond 70kHz, +/.5dB @ normal power lvls from below 1Hz to beyond 100kHz, ±1dB @ normal power lvls
Square Wave Tilt
<10% @ 20Hz
Rise Time
SQUARE WAVE – Better than 3 microseconds
Stability
absolutely stable with all types of speakers
Phono Overload
variable with CD-4 separation adjustment
Tone Controls
BASS – ± 12dB @ 50Hz
Tone Controls
TREBLE – ±12dB @ 10kHz
Tone Controls
MIDRANGE – ±12dB boost and cut @ 1kHz

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