> hello list!
>
> thanks for this information! i am looking forward a matrix mixer to
> integrate it in my modular live setup :)
>
> imo a 4x4 matrix is for most applications sufficient (eg mixing the
> outs of the quad modules or 2 dual modules...).
>
> hence, it would be more convenient to use a slightly modified front
> panel layout:
> i suggest a "matrix design" of the ins and outs, ie using the inputs
> on the left and the outputs on the bottom (fifth row). alternatively,
> the ins can be placed on the bottom (or top) row and the outs on the
> right, depending on whether the switches for polarity (next to the
> outs) fit in a vertical or horizontal line...
> it would be cheaper (16 instead of 25 pots) and in particular much
> more clear in a live context and more compact (i think 20te will do it)...
>
> any further suggestions !
>
> kind regards,
> andreas

Please look at the revised page of the A-138m. We have a 4x4 version
suggested too and will probably manufacture this version.

Best wishes
Dieter Doepfer