For Sale: Classic Pioneer home stereo amplifier made in Japan in the 1970's.
Working well with good sound quality expect on the phono inputs which are not working- not sure what the issue is. Aux, Tuner, and both tape deck inputs are good. Both A and B speaker outputs good. Sound quality is good with no hum or distortion. All controls and the flourescent power level display are working correctly.
Some minor wear and the vinyl woodgrain covering has been removed from both sides and shows some wear on the top part as almost always happens with this model.
You can download/view the original color brochure here: http://www.vintage-audio.com.ua/pict_mod/cat_items/235_item_file_pioneersa-7800.pdf
Video taken during testing to show working condition: https://drive.google.com/open?id=0B-zR29TiG1tbRGxnZlU5NGtOTDg
Info from the web:
Continuous Power Output
(10 to 20,000Hz)
65W + 65W: (T.H.D. 0.009%, 8 ohms)
65W + 65W: (T.H.D. 0.009%, 4 ohms)
(10 to 50,000Hz)
65W + 65W: (T.H.D. 0.02%, 8 ohms)
80W + 80W: (T.H.D. 0.03%, 4 ohms)
Total Harmonic Distortion (10 to 20,000Hz, 8 ohms)
No more than 0.009%: (continuous rated power output)
No more than 0.007%: (32.5 watts per channel power output)
No more than 0.007%: (1 watt per channel power output)
Intermodulation Distortion (50Hz: 7,000Hz = 4:1, 8ohms)
No more than 0.003%: (continuous rated power output)
No more than 0.003%: (32.5 watts per channel power output)
No more than 0.003%: (1 watt per channel power output)
Frequency Response: 5 to 200,000Hz + 0dB, -2dB
Input Sensitivity/Impedance: 1V/50k ohms
Output
Speaker: A, B, A + B.OFF
Headphones: Low impedance
Damping Factor (20 to 20,000Hz, 8 ohms): 55
Hum and Noise (Short-circuited A network): 118dB
Preamplifier Section
Input Sensitivity/Impedance
Phono 1: 2.5mV/50k ohms
Phono 2: -
Mic: -
Tuner: 150mV/50k ohms
Aux1: 150mV/50k ohms
Aux2: -
Tape Play 1: 150mV/50k ohms
Tape Play 2: 150mV/50k ohms
Phono Overload Level
Phono 1: 200mV (MM), (1kHz, T.H.D. 0.003%)
Phono 2: -
Output Level/Impedance
Tape Rec 1: 150mV
Tape Rec 2: 150mV
Pre Out: -
Headphone (RL; 80 ohms): -
Frequency Response
Phono (Riaa Equalization): 20 to 20,000Hz ±0.2dB
Tuner, Aux, Tape Play: 5 to 100,000Hz +0dB, -1.0dB
Tone Control
Bass: ±10dB (100Hz)
Treble: ±10dB (10kHz)
Filter
Low (Subsonic): 15Hz (-6dB/oct.)
High: -
Loudness Contour: -
Hum and Noise (Short-circuited A network)
Phono: 87dB (MM)
Tuner, Aux, Tape Play: 110dB
Muting: -20dB
Semiconductors
FETs: 4
ICs: 3
Transistors: 50
Diodes: 42
Others: 1
Miscellaneous
Power Requirements: 220/240 V, 50-60Hz
Power Consumption: 220W (UL)
Dimensions: 453x155x376 mm
Weight: 12.7kg
Email for additional and/or higher resolution images.
Send your zip code for a shipping quote- should be between $11.99 and $29.99 if you are in the US. (Oct. 2017).
