Marantz 1122 DC Amplifier

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Marantz 1122 DC Amplifier (1978-1980)

Service Manual

TECHNICAL SPECIFICATIONS

Continuous Power (RMS) 2 X 61 watts at 8 ohms
Continuous Power (RMS) 2 X 77 watts at 4 ohms
Power Band: 20Hz to 20Khz
Frequency response: 5Hz to 60kHz +/- 1dB
Total Harmonic Distortion: 0,03% at 8 ohms
Total Harmonic Distortion: 0,09% at 4 ohms
Damping Factor: 60 - 8 ohms
Input Sensitivity Phono: 1.8 mV
Input Sensitivity Tuner: 180 mV
Input Sensitivity Aux: 180 mV
Input Sensitivity Tape In: 180 mV
Output Impedance: 4 to 16 ohms
Signal to Noise Ratio Phono: 83 dB
Signal to Noise Ratio Aux: 93 dB
Signal to Noise Ratio Tape: 93 dB

Dimensions: 416 x 146 x 316 mm
Weight: 12.5 Kg

Wholesale Electronics.Inc (NTE)

Transistors	Equiv	Other
2SC1222	NTE199-BC184L	2N5210-KT3102A
2SA750	BC640-NTE234	2N5416
2SC945	BC407B-BC167B	KSC945-NTE85
2SA733	BC557-KSC945	BC182L-2N3710
2SD588	2SD586-NTE36	2SC552-KT812A
2SB618	BD544D	2N6228
2SC1775A	BC449-BFT57	2N6218-KSC1845
2SK109	NTE458
2SA872A	2SA893-NTE288	BF435-2N3930
2SA914	BSY75-NTE292	BF470-2N3930
2SC1953	NTE373-BF469	2N5656
2SC1913	2N5102-NTE198	BUX84-BUW40A
2SA913	2SA698-BSY75	2N5415S-KT505A