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One thing I've found helpful has been to be able to control the mic signal with a volume pedal. There was a thread several years ago in which I asked if anyone knew of an xlr-equipped, low impedance volume pedal. I never did find one (or bother to wire one up) but I did get around the problem by putting a little preamp on my pedalboard (a midiman audio buddy) so that my mic'ed stuff goes SM57>preamp>volume pedal>mixing board. I've also used a Behringer Shark in place of the midiman, and it works ok too. The idea is to control the volume level to the looper; backing it off and looping silence at times to avoid the monolithic roar that can build up really quickly with an 'always-on' mic. It's not foolproof; one must still be very careful with monitor placement so that the loops don't re-enter the mic. (Acoustically, I mean; I have a lot of fun routing the loops back into themselves with the aux sends). Having a bit more control over what gets into the loop through the mic keeps the noise floor a little more tolerable. A bit of EQ tweaking can help a lot as well. Also, I've had pretty good results with putting contact mics/transducers on some of my otherwise acoustic instruments to avoid having to mic them. A piezo bar like you'd find under a guitar saddle is great under the bridge of a mbira; huge bass! -t- --- ml@dadaprod.org wrote: > My problem is when I play live (no problem with > headphone at home), I've got > serious feedback when I add several layers of > acoustic instruments! > > I am working with a boomerang (v1.0) wich is placed > at the aux send of a little > beringer. My guitar is connected to this beringer > throuh a Pod (line 6) and I > record acoustic instruments (my voice too) with a > sm57 microphone also > connected to the mix table.. > > Has anyone any idea how I can improve all this? ____________________________________________________ Start your day with Yahoo! - make it your home page http://www.yahoo.com/r/hs