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Doepfer

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Re: clock noise A-188 1-B (1024 stage) analog delay

2006-07-23 by ilanode

Hello Soy Sys, I *guess* the 1024 BBD stage version of the A188 uses 
a MN3007 chip. Accord. to it's data sheet the delay time ranges from 
5.12ms to 51.2ms. If the A188 can be set for longer times there's a 
trade off in massive quality leakage. It results in the "bad" sounds 
mentioned by Axel many on this list opted for. The MN3007 is rather 
a reverbation and chorus chip than an echo device in it's true sense.

--- In Doepfer_a100@yahoogroups.com, "djsoysos" <djsoysos@...> wrote:
>
> Axel,
> thanks for your reply. I experimented with the 2 filters I have,
> the A-121 multimode  filter  and A-101-1 vactrol multi mode filter.
> But in order to remove clock noise I end up rolling off everything 
at
> what sounds to my ear around 200-300 hz. That's a considerable
> dulling of the sound. Not something I will always want.
> Dont get me wrong this thing sounds great for doing
> modulated fx like chorus, flange ect. I just a bit of an echo 
freak.
> Soy Sos
> 
> 
> > You have to use a filter to reduce the clock noise until 100 %!
> > It has been heavily discussed whether a filter should have been 
build in, but many users 
> want to have the dirty sound you describe as "bad". I recommend 
the A-105 VCF to blow the 
> clock noise away. I think, after using a filter you'll get the dub 
sound as it is requested by 
> most of the dubbing fans.
> > best regards
> > Axel
>

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