◆阿钟音响◆原装日本 Pioneer/先锋 SX-990 合并功放

带 FM/AM

Specifications:

PIONEER MODEL SX-990 STEREO RECEIVER
TECHNICAL SPECIFICATIONSclassicaudio.com

TRANSISTORS & DIODES
Tuner Section
-ICs: 5classicaudio.com
-FET: 1
-Transistors: 16
-Diodes: 14
Audio Section:classicaudio.com
Transistors: 25
Diodes and etc. 5

FM SECTION
Circuitry:classicaudio.com
-Front-end using an "FET" and 4-gang variable capacitor
-IF amplifier using 4 ICs
Frequency Range: 87.5-108 MHz
IHF Usable Sensitivity: 1.7 uVclassicaudio.com
Image Rejection: 87 dB (at 98 MHz)
Signal-to-Noise Ratio: 62 dB (IHF rating)
Antenna Input: 300 ohms (balanced)classicaudio.com

MULTIPLEX SECTION
Circuitry:
-Time switching type de-modulatorclassicaudio.com
-FM Mono/Stereo automatic selection
Channel Separation: 42 dB (at 1 kHz)

AM SECTION
Circuitry: Superheterodyneclassicaudio.com
Frequency Range: 525-1605 kHz
IHF Usable Sensitivity: 18 uV
Image Rejection: 77 dB (at 1000 kHz)classicaudio.com
Antenna Input: Built-in Ferrite loopstick antenna

AUDIO SECTION
Circuitry: Single-ended push-pull
Music Power Output (IHF Rating):classicaudio.com
-130 watts at 4 ohmsclassicaudio.com
-100 watts at 8 ohms
RMS Rated Power Output (both channel driven): 
30 + 30 watts 4 ohms
28 + 28 watts 8 ohmsclassicaudio.com
RMS Rated Power Output (each channel driven): 35/35 watts 8 ohms
Frequency Response: +/-3 dB from 10 Hz to 100 kHz (Over-all)
Harmonic Distortion: Less than 0.5% (at 1 kHz rated output)
Power Bandwidth: 15 Hz to 40 kHz (AUX)classicaudio.com
Hum & Noise (at rated output):
-MAG - better than 80 dB
-AUX - better than 100 dBclassicaudio.com
Inputs Impendance and Audio Sensitivity (for rated output):
-MAGnetic PHONO - 3.3 mV 50 kOhms (1 kHz)classicaudio.com
-CERamic PHONO - 24 mV 100 kOhms (1 kHz)
-MICrophone - 5 mV 100 kOhms (1 kHz)classicaudio.com
-TAPE MONITOR - 200 mV 100 kOhms (1 kHz)
-AUXiliary - 200 mV 100 kOhms (1 kHz)
-MAIN INput - 530 mV 100 kOhms 1 kHz)classicaudio.com
Output Terminals and Jacks:
-Speakers - 4 to 16 ohmsclassicaudio.com
-Stereo headphones jack
-Simultaneous tape recording jacks, equipped with TAPE MONITOR switchclassicaudio.com
-Tape recording/playback jack (DIN standards)
-Pre-output jacks
-Center Channel jackclassicaudio.com
Equalization Curves:
-PHONO: RIAA
Tone Controls (each channel):classicaudio.com
-BASS - boost 11 dB, cut 16.5 dB (at 50 Hz)
-TREBLE - boost 10 dB, cut 9.5 dB (at 10 kHz)
Filters:classicaudio.com
LOW - cut 8 dB (at 50 Hz)
HIGH - cut 7.5 db (at 10 kHz)classicaudio.com
Loudness Contour: Switchable ON-OFF, boost 12 dB at 50 Hz, boost 9 dB at
10 kHz, with VOLUME control set at -40 dBclassicaudio.com

POWER SUPPLY, ETC.
Power Consumption: 190 watts (Max)classicaudio.com
Overall Dimensions:
-18 1/16" (Width)classicaudio.com
-5 11/16" (Height)
-14 1/2" (Depth)
Weight: 25 lb. 2 oz. / 11.4 kg.icaudio.com

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