M-955 nII / 260
(1975 - ?)
units, all adorned with an "NII"
tag, the meaning of which I know nothing about.
The three separates are of the "1+1" dual-channel kind
- and Dual Channel here means dual power transformers
955 power amp sports a Class-A/Class-B
switch and 2 15,000µF double caps (60,000µF in toto)
; 2x 28W are available in Class-A (1kHz) and 2x 130W in Class-B
(1kHz) ; 19,8kg on the balance.
The 655 crossover has a doubled-up
mid channel, selectable slopes (6 or 12dB/oct.), a damping selector
when used with a 12dB slope (0,7 / 0,8 / 0,9 / 1,0) and selectable
high/low cuts for each channel ; active when using the 12dB, passive
when using the 6dB position ; 9,8kg on the balance.
The 855 preamp sports a two
position loudness control (low / high&low), 2 turnovers for
the tone controls (125Hz / 400Hz for bass, 2kHz / 8kHz for treble),
two-position filters (10Hz / 30Hz for low, 5kHz / 20kHz for high),
a 3-position phono input level for both phono inputs (1,2 / 2,4
/ 4,8mV), two preamp outputs, a nifty LED peak indicator for the
phono inputs, 0,01% THD and 9,2kg on the balance.
The simplified 755 integrated amp operates
in Class-B and can deliver 2x 50W at 1kHz into 8Ohm with no more
than 0,05% THD at 1kHz ; 46,7 x 16,1 x 38,4cm and 12,8kg on the
The 566 tuner sports an 1,9µV
sensitivity (IHF, 3,3µV at s/n 50dB), a 73dB s/n ratio (IHF),
the same dimensions as the 755 and a hefty 8,4kg on the balance.
I don't think these were available outside Japan but would love
to hear from an owner just the same !
can see the M-955 nII in detail at amp8.com
and at amp8.com