MOTM

Hello,

Does anyone with a 440 Filter know if there is any noticeable
filtering in the upper freqencies or coloration/noise added to a
signal if one were to use it as a mixer with the cutoff wide open?

Thanks

I don't notice any - I would recommend that the "Bass" switch is set to normal if you don't want to color the signal. You could always do a spectrum analysis on basic synthesizer waveforms being run through the 440 and bypassing the 440 and just compare them. Programs like SoundForge, Peak, and any other consumer/professional editing program usually has a spectrum analysis or FFT (fast fourier transfer) features built into them. Honestly the signal to noise ratio is awesome on MotM stuff so you would probably be better off using the 440 than a cheap Behringer mixer if you really need extra mixer channels. As far as high frequency attenuation if the filter is open all the way with no resonance those frequencies should pass through. I would just experiment and see what works out best but that's my 2 cents :)
-Chaz  

-----Original Message-----
From: chad_kettering <chad_kettering@...>
To: motm@yahoogroups.com
Sent: Fri, 01 Apr 2005 18:31:44 -0000
Subject: [motm] Using MOTM-440 as a mixer




Hello,

Does anyone with a 440 Filter know if there is any noticeable
filtering in the upper freqencies or coloration/noise added to a
signal if one were to use it as a mixer with the cutoff wide open?

Thanks






 
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Excuse my late reply.  I'm about 4 months behind and am catching up now.

chad_kettering writes:
>>Does anyone with a 440 Filter know if there is any noticeable
filtering in the upper freqencies or coloration/noise added to a
signal if one were to use it as a mixer with the cutoff wide open?<<

I sometimes use 440's or 420's over the motm mixer just to avoid some of the annoying and hard to remember parculiarities of the motm mixer.  The 440 sounds fine when the filter is all the way open.  I haven't noticed any loss.  The 440 won't chop your votages down to a fraction of what they should be like the motm mixer (which may explain some of my failed feedback experiments now that I know what's happening).  In fact you can boost 10 volt signals up to about 26 volts peak-to-peak with the 440 at about the 7.5 tick mark location.  Beyond that the signal will start to flatten a bit.

-Elhardt