Doepfer

Hi,

  does anyone know how to mod the A-156 Quantizer to play the 4th
instead of the 6th?

Yours Aye

Stuadh

> Hi,
>
>   does anyone know how to mod the A-156 Quantizer to play the 4th
> instead of the 6th?
>
> Yours Aye
>
> Stuadh

This would require a software modification of the microcontroller used in
the A-156. Christian Assall is on holiday at present and I can't ask him how
time-consuming such a modifiaction would be.

Best wishes
Dieter Doepfer

Thank you.  I'm not in a hurry, but I'm definitely interested.

Yours Aye

Stuadh


> 
> This would require a software modification of the microcontroller
used in
> the A-156. Christian Assall is on holiday at present and I can't ask
him how

> time-consuming such a modifiaction would be.
> 
> Best wishes
> Dieter Doepfer
>

Would it be possible to make the A-156 to accept negative voltages too?

> Would it be possible to make the A-156 to accept negative voltages too?

Not in an easy way. The A-156 was developed as an expansion module for the
A-155 which outputs only positive voltages. As the AD converter of the A-156
accepts only positive voltages you need an additional offset that shifts the
negative voltage into the positive range. One of the mixers A-138a/b/c, the
A-129-3 or the new precision adder A-185-2 can be used to obtain such a
positive offset.

Best wishes
Dieter Doepfer