My approach to achieve longer bbd quality delays is to insert a
digital delay (with its own feedback set to zero) in the FB loop of
the A-188.

best regards,
Joost

--- In Doepfer_a100@yahoogroups.com , <hardware@...> wrote:
>
> > Hi,
> >
> > I know that pedals like the memory lane use more than one mn3005 to
> achieve
> > longer usable delay times. So is it possible to chain multiple
4096 stage
> > 188-1s together for longer usable delay times
> >
> > thanks,
> >
> > Pierre
>
> In principle that's possible but the sound quality becomes very poor
from
> our experience if several BBD circuits are daisy chained. For longer
delay
> times I'd recommend digital delays (P.S. we are working on a voltage
> controlled delay module that is not based on BBD, details will follow as
> soon as the prototype is working).
>
> Best wishes
> Dieter Doepfer
>