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Frustrated with not knowing what MOTM filter to get first...

2009-02-18 by argitoth

WARNING: a bit of a rant, sorry.

Hey Paul, I have another dilemma about my order. I'm posting a rant on 
the MOTM forum hehehe...  I'd like you to ship the order soon, but I'm 
getting more and more frustrated with knowing what filter I *really* 
want. I might want to change my order a little bit. Sorry!

I was only getting the 420 because you said it was easy to build. Part 
of my frustration is that, in my opinon, none of the audio demos 
reveal how one filter sets itself apart from another filter. One 
problem is that all the filters have audio demos of completely 
different context (different modulation, different inputs, etc.). If I 
want to hear a filter's character, I give it a low-pitch saw wave, 
sweep the cutoff, and set the resonance to near-max and max. How a 
filter self-oscillates and how a filter overdrives shows its 
individual character, in my opinion.

Ok, so I've explained to you my frustration. Now we can start the 
process of solving this frustration. First of all, in the analog 
world, my favorite filter that I've owned so far is the Doepfer A-106-
1 Xtreme Filter. It can sound ugly, harsh, distorted, crazy, and 
that's just how I like it. I also like my Analogue Systems RS-110 
filter. The RS-110 is everything that the A-106-1 is not. It can sound 
clean and/or growly. I like how the filter reacts to near-self 
oscillation and high gain. I can provide audio demos to help you 
understand what I'm describing.

Now that I said that, let me say this. Whichever filter I get, I 
really want to have the ability to do dual resonance peaks. Also, the 
filter must have at least two modes: Lowpass and something else. That 
means the 490 and 440 are out as it's only a lowpass. The 410 is out 
because it's only bandpass. There's nothing in the 480's description 
that says it's harsh. The audio demos for the 480 are... kinda boring 
(in my opinion, sorry!). That means the 480 is out. That leaves the 
420 and the 485. According to their descriptions, they are both on the 
harsher side. HOWEVER no audio demos SHOW IT (in my opinion). That's 
my frustration! The only way (in my opinion) to reveal a filter's 
harsh character is with near-max and max resonance with filter sweeps 
with a low-pitch saw at relatively high gain.

I know what you're thinking. "If you haven't heard any audio demos you 
like, maybe these filters aren't for you, look elsewhere!" However, I 
want MOTM quality more than I want "my perfect filter." I'm willing to 
compromise. I don't NEED A-106-1's crazyness. In the future I'll 
definitely want to have all MOTM filters. But as for my FIRST 
purchase, I do want the MOTM filter with the harshest character.

Finally, let me pose the questions:

1. What filter do you suggest for me?
2. Can you provide an audio demo with my specifications of the filter 
you suggest? --- low-pitch saw (two or three octaves below middle C) 
of relatively high gain, near-max and max resonance, filter sweeps in 
lowpass mode.

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