Controlled Feedback Idea

ACR4V3N

New member
I've been thinking alot about feedback and how to make it more accessible and controllable. Remembering piezo buzzers, I was thinking that if, somehow, I could get the guitars sound going straight back into the pickup through some kind of a minispeaker in the actual guitar, what would happen? I came across this: http://store.guitarfetish.com/on25waguamdr.html And was wondering if by combining the onboard miniguitar amp with a small, small speaker under (or just close) to the pickup would have any work/lasting effect on the guitar and its feedback. Anyone have any thoughts? I'd like to hear the wisdom of this forum before I drop a whole $20.
 
Re: Controlled Feedback Idea

The coolest feedback I've ever heard was from Ted Nugent in his days with the Amboy Dukes, it was low octave stuff, not the squeely kind. He used a Byrdland, and when he turned that hollowbody towards his amp, he could make that thing roar on command like a lion. Check out the Amboy Dukes version of "Baby Please Don't Go" for an great example. This is a lost art. More guys need to do this.
 
Re: Controlled Feedback Idea

The idea of inducing vibration into the strings by means of a transducer is the underlying principle behind the E-Bow and Sustainiac.

Any loudspeaker-like device wide enough to cover the spread of your guitar strings is going to occupy a large chunk of the front of your instrument.

If you are a singer, maybe you could mount the loudspeaker element of this project on your mic stand?

My preferred method for feedback on demand involves marking the stage at soundcheck. There will be sweet spots where you just cannot go wrong. This is the technique that Robert Fripp used to get the sustain-all-day lead guitar on the David Bowie song, "Heroes". This is also pretty much what blueman335 was describing earlier, except Fripp's guitar is solidbody and Nugent's is hollow.
 
Re: Controlled Feedback Idea

My preferred method for feedback on demand involves marking the stage at soundcheck. There will be sweet spots where you just cannot go wrong. This is the technique that Robert Fripp used to get the sustain-all-day lead guitar on the David Bowie song, "Heroes". This is also pretty much what blueman335 was describing earlier, except Fripp's guitar is solidbody and Nugent's is hollow.

+1. I'd much rather just turn towards the amp, than modify my guitar or build new gear. If you have the amp/overdrive set so it's on the edge, but not quite feedbacking, then moving a step or turning will push it over into feedback. Keep it simple. A little on the guitar body with the palm of your hand helps too.
 
Re: Controlled Feedback Idea

Any loudspeaker-like device wide enough to cover the spread of your guitar strings is going to occupy a large chunk of the front of your instrument.

Im talking a small piezo buzzer that loops back to produce sounds back into the pickup.
 
Re: Controlled Feedback Idea

Arguably, the master of controlled feedback is Brian May. Think of that E note in 'We Will Rock You' leading into the solo before crashing in the C5, like a swallow's voice - very pure. Of course, it helps to have your amp wound up all the way and with a treble booster in front :).

The Red Special was made with a chambered body so that it would be responsive to feedback. Depending on how you work the strings vs. sweet spots on stage, you can control to an extent the ratio of fundamental vs. octave harmonic and when the latter kicks in. A solid body doesn't have that degree of dynamic range.

As for Teuffel, he was trying to recreate in the Tesla the kinds of faulty noises we've all experienced with cheapo guitars - microphonics, excess hum, signal cut from bad solder joints etc. Very cool guitar - I'll take the 3 pickup model in a 7 string format :cool2:.
 
Re: Controlled Feedback Idea

Check out the live version of Daydreams by Robin Trower...he gets low controlled feedback on a Strat :bigeyes:
 
Re: Controlled Feedback Idea

I was able to get controlled feedback with a splitter a full sized amp, mini-amp and an isolation cab. I put the mini-amp close to the guitar to get the feedback which then fed a cranked amp in an isolation cab.
 
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