[sdiy] Steiner Filter 6 vs. 8 Diodes?

[Peter Grenader]

The filter schematic which Nyle  published in EDN which is all over the
place is neither an exact duplication of the Synthicon or Synthasystem
filters.  All three are different, albeit similar.

The Synthasystem filter has a slightly different way of handling it's
resonance, a different output buffer configuration and per its schematic has
10 diodes in the chain.  However, the filter in my Synthasystem has 12 of
them, yet I repaired another one recently which only had 10 and was an exact
replication of the circuit shown in the Synthasystem schematic.

Sonically, they are real real close.  The Synthasystem filter's lowpass is a
bit more in your face if you want it to be and generally a touch  warmer,
most evident in low resonance situations.  High resonance is sonically
identical on all three circuits.

hope this helps,

- P



jays at aracnet.com wrote:

> While we're talking about Nyle Steiner, here's a question about his Synthacon
> filter. I've seen either 6 or 8 diode versions of this, the original from the
> EDN article being 8.
> 
> Can someone comment on any sonic differences between the two implementations?
> 
> Thanks
> Jay S.
>