> From: "Paul Schreiber" <synth1@...> > The ARP has too many parts! The Univibe has about half > of the ARPs. The MXR phaser has fewer still! :) But yet somehow that little MXR still sounds good. Whatever design, a good, err... no GREAT, phaser should be part of the MOTM plan. :) See what you got started again Thomas?? Now, back to pre-amps... > From: "Paul Schreiber" <synth1@...> > Mics are probably best handled by your little Mackie mixer :) > Because, you need to handle both XLR and dynamic, phantom > power, blah blah blah. Boo... Hiss... Come on Paul.... Can't we have just one mic input, say XLR, balanced, low impedance. That would cover most everything. Phantom power guys can handle their own power (or a spiffy phantom power jumper on the MOTM circuit board). Or, you could go 1/4" high impedance and force the mic guys to use a matching transformer. BUT, all good mics are balanced low-Z anyhow, so .... Of course, to keep the MOTM 1/4 input appearance, I guess any low-Z mic input should be a stereo jack and not a real XLR. > Also, there is a large *untapped* MOTM market for guitar players!! Yes, but life isn't fair and the guitar layers get all the great chicks. So..... How about 3 inputs (like the original). One optimized for guitar, one for line levels, and one with a user adjustable trim (or appropriate component change on the circuit board). Or a switch on the 3rd pre input for low level / high level inputs. Am I missing someting, or would not a guitar input and microphone input have roughly the same gain required, if a microphone matching transformer was used to come closer to the high impedance input of the guitar input (or the trimmable). I know the impedance of a guitar is higher than the high impedance side of a microphone transformer, but aren't they close enough? So channel three could have two inputs, one balanced low-z and one unbalanced high-z. (I know, I am thinking mixers again). And then there is that distortion issue.... Separate module? Or maybe the triple preamp could be two flavors: # 1 - dual input with the distortion Paul suggested. (this is the guitar MOTM interface) one of the inputs for guitar and the other ??? # 2 - triple input, no distrotion, two line levels and one mic level (synth MOTM interface). See, then we would have to buy them both. I've rambled long enough. I love this list and hearing what others think is important for thier MOTM systems. I wish more of you quiet types would speak up. I see you out there lurking. And thanks again Paul for letting customers in on the design issues. I think that a lot of good ideas (and much controversy <grin>) have come from the open discussion. I am always happy to see the final product even if I know it is not "exactly" how I would have asked for it because it has the input of so many knowledgeable folks and Paul's good sense to separate the good ideas from the bad. Larry H
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Re: MOTM Pre-amp
1999-09-07 by J. Larry Hendry
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