Pioneer A-656 MK II

Data

General

Connections

Number of inputs:
- 1x Phono (Cinch): 2.5 mV / 50 kOhm (MM), 0.2 mV / 100 Ohm (MC).
- CD, Tuner, Line, 3x Tape In (Cinch): 150 mV / 50 kOhm
Number of outputs:
- TAPE REC: 150 mV / 2,2 kOhm
- Loudspeaker: A, B, A + B, OFF
- Headphones: Low impedance

Technical Data

Continuous power (at distortion factor)
- 8 Ohm: 70W + 70 W (20 - 20.000 Hz, T.H.D. 0.005%)
- 4 Ohm: 95W + 95 W (20 - 20.000 Hz, T.H.D. 0.008%)
- 2 Ohm: 160W + 160 W (T.H.D. 0.008%)
Dynamic power
- 4 Ohm: 150W + 150 W
- 2 Ohm: 190W + 190 W
total harmonic distortion:
- 0.005% (20 - 20.000 Hz, T.H.D. 70W for channel)
- 0.008% (20 - 20.000 Hz, T.H.D. 95W for channel)
Attenuation factor: 200 / 70 (8 Ohm, 1 kHz / 20 - 20 kHz)
Frequency response:
- PHONO (RIAA)
- MM 20 - 20.000 Hz ±0.2dB
- MC 20 - 20.000 Hz ±0.3dB
- CD, TUNER, AUX, TAPE 1 - 150.000 Hz ±0dB - 3dB
Signal to noise ratio IHF:
- PHONO (MM/MC) 95dB / 77dB
- CD, TUNER, AUX, TAPE 110dB
Stereo channel separation:
Tone control:
- Bass: yes, ±8db (100 Hz).
- Treble: yes, ±8db (10 kHz)
- Loudness: yes, +5 db (100 Hz)/+3 db (10 kHz)
- High Filter: no
- Low Filter (Subsonic): yes, 17 Hz (12 db/oct.)
- Mute: no
- Direct/Line-Straight: yes

Excerpt from Test: Denon PMA-860, Dual CV-5670, Pioneer A-656 II, Sony TA-F 550 ES

External differences to the A-656: smaller knobs replaced by cylindrical versions resembling the large knobs.
Golden dot only on the volume potentiometer.
Inside: still horizontal circuit boards, but already no honeycomb housing around the volume potentiometer at the back right of the unit anymore