Doepfer

I'm thinking of building a doepfer modular system for audio proc. I'm
not as interested in getting the best ocsillators cause I already have
other synths to use for source signal. 

I do however want the best sounding filters for my money. This is my
biggest interest in make a modular system. 

I'm thinking of getting two for my system,
does anybody have anything to say about these two filters?

A-121 Multimode Filter (VCF2)
($95)

A-124 VCF5 / "Wasp" Filter
($65)

I'm looking for one stable/simple filter and one unique sounding one.

Also, does anybody know where I could buy or find plans for a mix
matrix?

alexander bassett(gray ape)
www.bypassgroup.net