View source for Pioneer A-656 MK II

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== Data ==
'''General'''
* Manufacturer: [[Pioneer]]
* Model: A-656 Mark II
* Type: Integrated amplifier
* Years of manufacture: 1990 - 1991
* Made in: Japan
* Colors: Black, Silver (A-656-G MK II)
* Remote control: No
* Power consumption: 650 W max.
* Dimensions: 420 x 162 x 435 mm (WxHxD)
* Weight: 13.5 kg
* Original price approx.: 800 DM


'''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 &plusmn;0.2dB
** MC 20 - 20.000 Hz &plusmn;0.3dB
** CD, TUNER, AUX, TAPE 1 - 150.000 Hz &plusmn;0dB - 3dB
* Signal to noise ratio IHF:
** PHONO (MM/MC) 95dB / 77dB
** CD, TUNER, AUX, TAPE 110dB
* Stereo channel separation:
* Tone control:
** Bass: yes, &plusmn;8db (100 Hz).
** Treble: yes, &plusmn;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

== Remarks ==
* Previous model:
* [[Pioneer A-656]]


* Successor model:
* [[Pioneer A-676]]


* Other models in the same series:
* [[Pioneer A-227]]
* [[Pioneer A-337]]
* [[Pioneer A-447]]
* [[Pioneer A-656 MK II]]
* [[Pioneer A-757 MK II]]
* [[Pioneer A-858]]


== Pictures ==
* Excerpt from Test: Denon PMA-860, Dual CV-5670, Pioneer A-656 II, Sony TA-F 550 ES 
[[File:Denon PMA-860-Test-1990.jpg]]


== Reports ==
* Report in "FonoForum" 7 / 1991


* 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


== Left ==


[[Category:Integrated amplifier]]