hi tim,
what i have found so far:i had some new
a131(v2.2001).i noticed that if you turn the input
knob all the way up the output uis much louder than
the older a131's and it is distorted too...dieter told
me that they made the new a131 this way because many
customres asked for distorted sound without the use of
the a136(!!!! ).but to my ears this distortion
doesn't sound good.i find the sound of the new a131'as
to be more harsh.the older a131's had a more warm
sound that i liked best.similar warm sounding is the
a132 too,so i use the a132 for audio from now on...
about the a130:i don't have any new a130's so,i can't
make any comments about their sound...but i find it
really annoying for the new a131's to have that harsh
sound and to give you distortion without me asking for
it!!i preferd the old ones!!!!dieter told me that the
older a131 that used the curtis chips, now they would
be more expensive because the price of the curtis CEM
chip used in these a131's are much higher
now...(damn!!!!).so,i'll settle for the
a132's........the a132's ,despite the fact that they
use the same RCA chips as the new a131's, they don't
sound harsh but warm like the old a131's,i really
don't know why...
of course that's only MY opinion.
bakis.


--- Stinchcombe Timothy < tstinchcombe@... >
wrote:

> Hi Bakis
>
> > HMMM.....interesting...i hadn't notice that adsr
> > clipping that you mention...anyway,my favourite
> vca's
>
> Discovering the similar problem with the 140 into
> the CV1 socket of the 131 when I first got my
> oscilloscope made me realise what an invaluable
> piece of kit it is (especially for the A-136 - my
> hat off to those who use that module without one..
> but then we've had that discussion before!). It took
> quite a lot of experimentation with a 'slow'
> envelope to be able to *hear* the effect (rather
> than see it on the 'scope), i.e. the volume
> levelling off for a period and then starting to
> drop, rather than continually increasing in 'attack'
> and immediately decreasing on 'decay'. I now always
> use the 140 into CV2 with the pot set at about 6.
>
> > in terms of sound is the A132!!!because of the
> > different sound of the new versions of the
> a130/a131
> > vca's.the A132 haven't been changed,and it sounds
> > warmer ,to my ears,of course...so,i use the a132
> for
> > audio and cv signals.any opinions about that
> > difference in sound of the new version(v.2 ,2001)
> > a130/a131
>
> The old 130/131 used the Curtis (CEM) PA381/382 VCA
> chips, which were presumably specifically designed
> to have nice characteristics for audio. The 132 uses
> the RCA CA3080 chip, which is probably why it sounds
> different. My 131 *is* the re-designed one (marked
> v2, 2001), and it now also uses the 3080 chip, so
> I'm guessing it will sound similar to the 132. I
> don't know that I'm a sophisticated enough user to
> be able to hear the difference, but I'll have a go
> at the weekend!
>
> My 130 has a PA381 chip, so I guess its an 'old' one
> - its marked 'v2, 1996', so I'm assuming that the
> new one, if/when it exists, will be 'v3'. I would be
> interested to hear from anyone else if they have a
> 'v3' 130, and whether my assumption that it must
> also use the 3080 chip is correct or not. (Some of
> this is from memory, so I'll correct on Monday if
> its found to be lacking...!)
>
> I also agree with Joe, I find the 132 real nice to
> use for varying modulation depth, and as it is DC
> coupled (unlike old 130) I occasionally use it to
> 'multiply' CVs too...
>
> Tim
>
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=====
synthfreak(parallel worlds)
athens-greece
1 group owner-moderator

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