[sdiy] 36dB VCF output drop while increasing emphases

[Harald]

Thanks Ian i think i will order one. And use my 3280 in my other filters 
as well.

Am 18.04.2015 um 18:14 schrieb Ian Fritz:
> The topology of the filter and its nonlinearities are what gives it its
> wide range of capabilities. The operation seems quite sensitive to OTA
> non-idealities (eg, offsets) which is why I recomment the CA3280.  I
> think it could work quite well if the 13700 were used, but probably the
> very low end (in self-oscillation) would suffer.
>
> Ian
>
> At 03:32 PM 4/17/2015, Harald wrote:
>> Well it uses 3280 OTAs. I still have some around but never used them.
>> Might be time to change this. Anything else special in this filter? Or
>> does the 3280 make the sound quality alone?
>>
>> Am 17.04.2015 um 21:56 schrieb Ian Fritz:
>>> I'm partial to 3d order, musically.  My 3d order filter has four
>>> switchable combinations of HP/LP stages and output from each stage.
>>> Demos may be heard/seen here:
>>> http://home.comcast.net/~ijfritz/MiscProj/Threeler.htm
>>> http://bridechamber.com/Threeler_PCB.html
>>> https://www.youtube.com/channel/UC8mKuBoR8bfHTLYRJ1sl0RA
>>>
>>> Several people have said this is the all-time best-ever filter. I don't
>>> know about that -- I've always been more interested in the waveshaping
>>> approach to timbre -- but please listen and see what you think about the
>>> musicality.
>>>
>>> Ian
>>>
>>>
>>> At 06:08 AM 4/17/2015, Harald wrote:
>>>
>>>> Second thought: The filter works quite good. Does it make sense to go
>>>> for 48dB musicaly?
>>>
>
>