Quote:
Originally Posted by guitarman68
One simple rule: With your preamp do not go to far under the impedance of the pickup. Better stay above or matched.
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Maybe I don't understand this comment correctly but I'd say the impedance of a preamp should be at least 10 times as high as the pickup imedance.
That is why preamps for piezo equipped adoustic guitars have input impedances between 1 and 10 MOhm. Otherwise you end up with a really thin sound. This happens when you plug a piezo into a line input of a mixer that usually has 10 kOhm.