I'm trying to sort out an issue, and I'm at an impasse.
My problem...
I have a rod piezo, under a bone bridge saddle, and it is wired to an 2.5W Artec amp circuit module.
It would normally be used in a cigar box amp, but I'm trying to use it as an active pre-amp.
The rod piezo lead is soldered to the input points, and the speaker output is wired to a 1/4" mono-jack.
The wiring seems simple enough, but the rod piezo is super sensitive.. it's as micro-phonic if not more so than if I was using a piezo disk. It transfers every bit of handling noise and every bump of the box or strings. I've replaced the rod thinking it was defective, but without success. The microphone noise is louder and more distinct than the string resonance when I try to play it. You can hear the rythmic "Clack" of the pick hitting the strings loud and clear.
Is this a fruitless path, or am I overlooking something?
I've never had a rod piezo act like this....
Tags:
I wasn't exactly "looking" for anything really.... it was more like, I have this... and this... and this... I wonder what will happen "IF"...
I have done a number of builds using the EQ-7545R pre-amp, and I was wanting to try something different. well I found "different". I'm no wiring wizard but I'm willing to experiment and try different things.
Clearly this configuration is not going to work out, so I need to find some other solution. I want it to be a battery powered pre-amp, but I don't have room in the box for a 4 channel EQ pre-amp unless I tear it down and rebuild it inside the box.... I don't really know... but I definitely want it to be unique, and cutting edge...
I think I found something that interests me....
http://www.guitarfetish.com/Mid-Boost-Circuit-Clapton-Woman-Tone-at...
Would something like this do the job?
If I wired in the Artec Active EXP ahead of the existing Artec Amp in series, would it clean up the microphonic issues?
Ultimately I'm considering building a similar instrument with an in box speaker system. Sort of a Guitar and Amp combined...
I guess I'm trying to optimize the tone from the rod piezo...
Yea, I'll pull the amp circuit in the morning and put a pre-amp on order.
Hey Greg,
Here's a thought...I presume you are running the Artec circuit from the guitar to an external practice amp, yes? Perhaps the answer is more simple. Rather than using an external amp, use a simple speaker cabinet. I mean, basically you have half of a combo amp (amplifier with speaker in same cabinet) inside the guitar body, without a speaker. So it makes sense that if you send the signal from the Artec inside the guitar to an external speaker cabinet , and not another amplifier, you may see better results.
Just a thought.
Cheers
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