AM/FM Multiplex Stereo Receiver
Never has
any receiver combined such exceptional high performance with so many
audiorefinemental a full 100W at 8 ohms over a frequency response from 10 to a
fantastic 100,000 Hz Advanced solid state circuitry with Field Effect
Transistor and Integrated Circuits and a 4-gang variable capacitor - for
significantly superior sensitivity and limiting. Two tuning meters, an
unusually wide range of inputs and outputs, precise tone controls and a host of
important innovations. Meticulously engineered. Stunningly styled. Truly one of
the finest audio components ever created.
Features
High-performance
FM Tuner
An FET
(Field-Effect Transistor) is used in the radio-frequency amplifier to attain a
high sensitivity and selectivity. Further, four ICs (Integrated Circuits) are
used for the intermediate frequency amplifier to eliminate interference and
noise.
Built-In Excellent FM MPX Circuit
This
switching circuit having excellent separation and frequency response is built
in for reproduction of reality music.
Built-In Highly-Sensitive Ferrite Antenna for
AM Radio Reception
The ferrite
antenna provides high-sensitivity reception of AM broadcast programs.
Special
Curcuitry for Versatility
The high
output given by strictly selected transistors, two sets of loudspeaker
terminals and phono terminals, and the provision for using a microphone make
Model SX-990 suitable for the professional use as well as the family use.
A variety of
Accessories
Accessories
include the program lamps that indicate the program being played, the tuning
meters vertically arranged for facilitating selection of an FM broadcast
program, the loudspeaker selector switch, tape monitor switch, etc, all for
enjoyable use of Model SX-990.
Specifications
Audio
Section
Circuitry: Single ended push pull
Semiconductors: 25 Transistors; 5 Diodes
Music Power
Output (IHF Rating):
100 watts
total at 8 Ω
130 watts
total at 4 Ω
Continous
Power Output
Each channel
driven: 35 W / 35 W at 8 Ω
Both channel
driven : 28 W + 28 W at 8 Ω (30 W + 30 W at 4 Ω )
Total
Harmonic Distortion: less than 0,5% (at
1 kHz rated output)
Frequency
Response: 10 Hz tp 100 kHz ±3 dB (
Overall)
Power
Bandwidth: 15 Hz to 40 kHz (AUX)
Hum and
Noise:
Mag : better than 80 dB
Aux : better than 100 dB
Input
Sensitivity/Impedance:
Magnetic
Phono : 3,3 mV / 50 k Ω
Ceramic
Phono : 24 mV / 100 k Ω
Microphone
: 5 mV / 100 k Ω
Tape Monitor
: 200 mV / 100 k Ω
Aux : 200 mV / 100 k Ω
Main In
: 530 mV / 100 k Ω
Output
Terminals Impedance:
Speakers
: 4 to 16 Ω
Equalization
Curves: Phono RIAA
Tone
Controls
Bass : boost 11 dB/oct, cut 16,5 dB at 50 Hz
Treble
: boost 10 dB , cut 9,5 dB at 10 kHz
Filters
Low : cut 8 dB at 50 Hz
High : cut 7,5 dB at 10 kHz
Loudness
Contour: boost 12 dB at 50 Hz, boost 9
dB at 10 kHz (switchable to On-Off ( vol. Control at -40 dB)
FM Section
Circuitry: Front end using FET end 4 gang variable
capacitor, IF amplifier 4 IC
Semiconductors: 1 FET, 5 ICs, 11 Transistors, 12 Diodes
Frequency
Range: 87,5 to 98 MHz
IHF Usable
Sensitivity: 1,7 µV
Image
Rejection: 87 dB (at 98 MHz)
Signal-to-Noise
Ratio : 62 dB (IHF rating)
Antenna
Input: 300 ohms (balanced)
Multiplex
Section
Circuitry: Time-switching type de-modulator FM Mono
Stereo Automatic selection
Channel
Separation: 42 dB (At 1 kHz)
AM Section
Circuitry: Superheterodyne
Frequency
Range: 525 to 1605 kHz
IHF Usable
Sensitivity: 18 µV
Image
Rejection: 77 dB (at 1000 kHz)
Antenna
Input: Built-in Ferrite Loopstick
Antenna
General
Section
Line
Requirements: 110, 117, 130, 220 and 240
V; 50 - 60 Hz; 210 VA 190 watts (max)
Dimensions
(W x H x D): 459 x 145 x 369 mm
(18-1/16" x 5-11/16" x 14-1/2")
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