The FET13S is designed for Amplification of acoustic
frequency 20hz -> 22khz (-3db point)
signal to noise ratio> 90dB
input imp. ----
output impedance 1 K
9 volt battery powered.
current 7.5 mA
The FET13S Guitar Piezo pickup preamp is a
special high quality preamp with piezo pickup element for
acoustic guitars, has a very high impedance input , which
ensures that the high-impedance output of
the piezo not getting loaded so the frequency response of
the pickup piezo gets much larger. The piezo element
therefore is specifically selected for this purpose which
results in a natural tone of the guitar itself. The amp
has no frequency correction or tone control.
This preamplifier is straight frequency
Most guitar amplifiers with piezo are colour tone
controlled, this results in not longer matching the
original sound of the guitar itself, they have a totally
different sound, those amps have no straight frequency
The FET13S tries to get the original guitar sound as good
as possible to approach, with high quality.The output
impedance is very low so inductance and capacitance of the
cable has almost no effect.
The FET13S comes with its carefully
selected piezo pickup and 9 Volt battery clip and a
Switchcraft jack socket.
Please note that during installation, the
preamplifier is sensitive to electrostatic discharge, only
use soldering irons with transformers and grounding !
It is important that the fet13s only get
installed by qualified guitar technicians !