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CX-10000
(1987)
A monster, a real monster with everything tripled - the chassis,
the chips, the possibilities, the VCAs and... the rarity. Part of
the "Limited Centennial Edition 1887-1987"
- I don't know how many of each unit making this set of superlative
units were made... But the CX-10000 was HIGHLY reviewed in Japan
back then, with a dedicated "Exciting Component" section
in Stereo Sound! In other words: top of the pops and crème
de la crème.
Sound-processing-wise, the CX-10000 is divided in two: a digital
parametric EQ plus associated side functions and a Digital Sound
Field Processor ; both parts have their own D/A converters: Hi-Bit
Yamaha for the DSP and Burr-Brown PCM-56P
for the EQ part.
The
other chips used are exclusively Yamaha's:
3x YM3818: DSP ; 3x YM3619:
4fs digital filter (225th + 41st FIR) ; 1x YM3623:
digital i/o ; 2x YM3608: DEQ, low/high
filters, slpoes etc ; 3x YM3901C +
2x YM3020: 16/48k A/D converter ; 1x
YM3615 + 1x YM3023:
18bit FS/H D/A.
The
3-band parametric EQ handles 4-step Qs (0,7 / 1,4 / 3 / 6) while
continuously variable low and high filters can see their slopes
set at 6, 12 or 18dB/octave. All this per channel, of course!
D/A is arranged according to Yamaha's Hi-Bit fashion. Output opamps
are JRC 5532D. 2 transformers for the
left and right analog channels and a third one for all things digital
; the six boxes (à la Accuphase
or Sony TA-ER1)
hold the VCA and LPF/HPF boards while the one at the bottom of the
main board shields the A/D section.
The bottom plate is made of 5mm thick steel ; gold-plated terminals
(53 in toto!) are present. No S-Video plugs, though - this is 1987
! Another touch to note is the balance ring which is exactly like
that of Yamaha's
1st CD player :)
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