[sdiy] Kawai SX210 and SX240 DCO poly.

[Doug Terrebonne]

I have an SX210 and used to have a 240, the parameter access is very good on 
both. On the SX210 there's a dedicated button for every parameter. There are 
very underrated synths.

Doug 
synthparts.com



----- Original Message ----
> From: Adam Inglis <21pointy at tpg.com.au>
> To: *SYNTH DIY <synth-diy at dropmix.xs4all.nl>
> Sent: Wed, March 14, 2012 6:49:26 PM
> Subject: Re: [sdiy] Kawai SX210 and SX240 DCO poly.
> 
> Great info, thank you
> 
> The specs make it sound quite versatile, but that  doesn't seem borne out in 
>the demos I've heard online.
> Never seen one in the  flesh - is the parameter access not much fun?
> 
> Adam
> 
> On 15/03/2012,  at 10:38 AM, KD KD wrote:
> 
> > In my ongoing and some what irregular  .....skip..... previously my Poly61
> > examination, i have now arrived with  my smelling horse at the Kawai
> > history dump.
> > 
> > SX 210  single ramp DCO (Roland JP8) with subosc (Roland Juno60) and SSM2044
> > VCF  and 2 quite clever ""logic"" based ADSR's similar principle as Juno6 but  
>2
> > separate ADSR EG's for each voice.
> > 
> > SX240 even more so  stylish dual DCO ramp (model JX3P) and sub (Juno60) DCO2 
>only
> > a square  wave yet selectable octave, and the same clevery designed ADSR's 
>Same
> >  SM2044 VCF. The 240 have a osc mode known as BRASS each DCO feeds a
> >  diode who's anded. 210 has variable 6db HPF and the 240 has a dual 6db  
HPF.
> > Both have master VCA at the rear end to set patch volume.
> > 
> > A interesting issue are the Ensemble unit very similar to Korg poly6,  two 
>3phase
> > oscillators mixed into 3 composite each feed to a multivib  VCO who in
> > turn drives
> > a MN3009 BBD multiply this by 3 and your  there. Each BBD have compressor 
and
> > expandor. Unfortunately no speed  adjustment as per Poly 6 but you could 
>modigy
> > and steal for instance the  noise VOL CV or better yet take the LFO to VCA 
CV
> > signal for some real  wash.
> > 
> > Another peculiar design move are VCA's, for each voice is  a
> > differential PNP mirror who
> > are summed into one differential  instrument amplifier (typical 3OP amp
> > classic design).
> > Clever  design since it saves a lot of components.
> > 
> > The SX240 have  12VCA's arranged in 8+4 for dual by 4voice poly by simply
> > turning off/on  4 of the VCA's to create the dual 4voice split/layer mode.
> > 
> > Dual  8031, 8253 for the DCO's and a surprisingly high resolution on the 
>synth
> >  parameters, CV's are created by a discrete 10bit DAC who feeds a temp  comp
> > expo. 1 prescaler for each DCO and a master LCO clk for  bend/vib.
> > 
> > SX210 and 240 have various split-mono-layer modes as  it seams.
> > 
> > If kawai had supply these two machines with  knobs/sliders in the same
> > way as Roland
> > did with Juno 60-106  Roland would have faced a serious challenge. Add 
>ensemble
> > speed and  arpeggio and they would have killed off the Korgs and Rolands.
> > 
> >  Thank you for your attention and the opportunity to yet again waste your  
>time!
> > Im most delighted! 8-)
> > 
> > Regards
> > Kurt  Donnegut!
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> > Synth-diy at dropmix.xs4all.nl
> > http://dropmix.xs4all.nl/mailman/listinfo/synth-diy
> > 
> 
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