[sdiy] preamps for piezos (slightly OT?)

[jarno.verhoeven at ziggo.nl]

Check out the schematics for Music Thing Modulars "Mikrophonie" module. I have one, and changed the input cap to something bigger, plenty bassy, too much so for use with the inbuilt piezo, it rumbles quite a bit.Best regards,
Jarno.
------ Origineel bericht------Van: Busby BergsonDatum: zo, 14 feb. 2016 19:25Naar: synth-diy DIY;CC: Onderwerp:[sdiy] preamps for piezos (slightly OT?)
hi synthdiys,
i'm currently experimenting with contact mics. they sound pretty good going into a guitar amplifier, directly - but if i want to send them through my other circuitry, it seems that they require a specialized preamplifier, to compensate for their impedance. 

i've been using something along these lines:http://music-electronics-forum.com/attachments/4228d1232615609-non-invert.buffer.gif
however, i'm noticing that there is still a significant high-passing - compared to the bassier direct-to-guitar-amplifier arrangement.
any thoughts? 
-  b.b.


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