[sdiy] Oberheim Xpander VCF

[Antti Huovilainen]

On Thu, 15 Jan 2009, George Hearn wrote:

> I've been pointed in the direction of the Oberheim XPander VCF.  I think
> it's quite incredible how 16 filter modes can come out of one filter.  Does
> this not make it about the most versatile analogue filter design ever?

You can get the same modes (and over a dozen more) from any 4 pole 
cascaded RC style filter (Moog ladder, CEM, OTA etc).

Antti

"No boom today. Boom tomorrow. There's always a boom tomorrow"
   -- Lt. Cmdr. Ivanova