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From: Pete Brunelli
Date: Fri, 18 Oct 1996 14:21:02 -0400 (EDT)
Subject: Re: Bullet Mods

At 09:20 AM 10/18/96 +1000, you wrote:
>Harpers,
>
>Thanks for your very practical advise about my Clicking CX-12. Here's
>another poser for you: I have a Fender Blues DeVille 212 amplifier
>which I use with a Sure Bullet. The amplifier has two inputs - high
>impedance and low impedance. The Bullet has been modified to be

Doc,
Are you sure that the inputs are marked for impedance and not tone response?
Fenders often have a "high" input which is like a "bright" channel input.

>balanced low impedance (straight out of the box it was dual high/low).
>So what would be the optimal configuration to get the best sound with
>the least feedback? High or low impedance input on the amplifier?
>Should I de-modify the microphone back to dual high/low?

I assume that you are having feedback problems. The Fender is meant to work
with high impedance guitar pickups, and your low-z mic may be a mismatch.
If you are getting decent volume from your current setup, try cranking the
treble down to 2 and the bass and mid to about 5. Another solution may be
to play through a stomp-box with gain control. I play through an old Pro_Co
Rat distortion box and use the filter and gain controls.

I am a firm believer in empirical testing, so i would do a set of tests at
different tone/volume settings taking notes and recording if need be, and
then switch the mic back and compare results.

I don't know if there is a simple solution to eliminating feedback from a
microphone/guitar amp combo. There have been a few posts recently about
active-EQ/notch type feedback eliminators like the Sabine FBX. But at
200-300 bux you could buy a small PA.

If you have web access, check out the JT-30 page and read the article on
feedback minimization. There is a link to it on my harplinks page at

http://www.connix.com/~pcb/harplink.htm

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