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CB Gitty..now what about these piezo sizes?
I'm scanning your online catalog and seeing 20mm/27mm and 41mm piezo sizes. What are
the differences..are there any differences tonewise?
Also..you show a 250K pot and a 500K pot. I have used a piezo tune-o-matic bridge on my homemade
Les Paul types and the volume control supplied by LR Baggs is 5 meg ohm. Piezos are high impedance
devices according to my understanding and tube amps have typically 1 megohm input impedance.
Now a 500k for a humbucker pickup or 250k for a SC (single coil) sounds right, but I would think
that if the piezos are wired directly into a volume control, it should be around 1megohm at least.
Am I correct in this assumption?
What about wiring the two piezo's in parallel. Someone stated that two piezos will sound louder than
1 piezo or two wired in series. Again this appears to be the result of the transducer's very high
input impedance.
Replies to This Discussion
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Permalink Reply by carverman on
-
Thanks for the quasi-scientific explanation on piezos. I already wired mine up in parallel and even included
a tone cap/pot..although the tone pot is for the SC more than the piezos, even if they are switched
through the 3 way.
Basically, they sound ok with 250k volume control..which I decided to use because of the SC and the fact
that Fender uses 250K vol pots on their SC, although Gibson (I believe) uses 500k pots on their P-90 SC.
I agree that the piezos lack bottom end and are basically "fair to middlin" as far as frequency response.
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