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Re: I'm feeling kinda Loopy....

Welcome to 'Rangville! I've been using a Boomerang+ for a year now, and maybe I can give you some pointers.
The Trim knob is simply a gain control that prevents the 'Rangs input from clipping and causing distortion. First you set the 3-way switch to select the range that the knob will work in. You'll have to experiment with the switch. "Mic" is very sensitive (that is, it will cause the "Clip" LED to turn on very easily), "Inst" is less sensitive, and "Line" is least sensitive. You should adjust the trim knob just below the point where the "Clipping" LED flickers.
On my unit, the middle switch setting is useless, because it causes a tremendous amount of hiss. This must be a defect. The other two switch positions work fine. I found that for best playback quality, set the trim knob to well below the setting where the LED flickers. You will get clean sound even as you start stacking. The trim knob works for ALL loops, not just the first. If the 3-way switch is set correctly, the trim knob will be set relatively close to the middle of its rotational travel.
As far as volume levels go, it all depends on your preference. You'll want to experiment to get the best mix. It becomes very easy after a short while.
Hope I haven't confused you!
----- Original Message -----
From: Jonathan
Sent: Wednesday, September 22, 2004 1:10 AM
Subject: I'm feeling kinda Loopy....

    Well, after years of being interested in looping, last night I went ahead and bought a Boomerang+ (the current model).  I've been having a blast with it so far, tackling simple tunes like Moondance and trying to get a feel for it.  I know it's no Echoplex, but it's keeping me plenty busy!
    My goal is to do solo bass shows, or maybe play some guitar too if I get a Y box setup together.  I can tell it will take a lot of practice to get this whole looping thing really figured out, but it looks like a very fun adventure.
    I don't know much about feedback, except that the manual says there are a lot of settings for it.  Does feedback just reduce the volume of the first loop as you layer more on top of it?  Any recommendations for where to set it?
    Also, is there any trick for adjusting volume levels for layers on top of a groove?  Do you turn your volume up for the foundation, then bring the instrument level back down to do the "background" stuff on top of it?
    Lastly, there's a lot of hiss, is there some trick to cut all that noise down?