Casio CZ/ VZ/ FZ - Pro Series

Hi Everybody,
 OK, from my experience the CZ-1 sounds thinner than the CZ-101.
The CZ-101 just blows away the CZ-1 when it comes to the bass and
range. I play by ear and find I get more of "THAT" sound from the 
CZ-101. They sound close, but no cigar for the CZ-1. It's just 
missing something that is difficult to describe.
 Could be a few reasons for this. The CZ-101 does use different CPU 
(uPD7811G)than the CZ-1(uPD7810HG), but both use the similar uPD933D
(CZ101)and uPD933AC(uses 2 of these on CZ1) for the music LSI. The 
12-bit DAC and expanders are also different components on the CZ-101 
and CZ-1. So there are some slight differences in the sound
generating hardware on these synths, they are not identical.
 But perhaps the biggest difference is the voltage applied to the 4558
final output op-amp. The CZ-101 being battery powered, runs on 
+,-9 volts, while the CZ-1 runs at +,-15 volts. The original designers
of the CZ optimized the design around the original CZ-101. 
 Should be noted all of the battery powered CZ's use identical 
components for sound generation. (CZ101,1000, 230S). Not sure about 
the CZ3000,5000. But I suspect there may be a slight difference, as 
when I A/B my 3000 to the 101, I still prefer the sound of the CZ-101.
Could be the 9 volts driving that 4558 making the difference?
 I like all of my CZ's, and I wish my supirior CZ-1 sounded as good
as my battery operated CZ's, but the portables seem to have an
edge soundwise, to my ears anyway!

Terry (The Casio Kid)

> > > I've heard rumors that the CZ-1 doesn't have the
> > > same "punch", "bass", "low 
> > > end" and other stuff that the CZ-101,1000,3000,5000
> > > have?
> > > 
> > > Is there any truth to this.