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Ginsly´s Acoustic Preamp is a preamp featuring a 20dB bass and mid EQ, and 16dB treble EQ. An internal gain trimmer allows to adjust the gain from factor 0.5 (half as loud as input signal) to factor 10 (10 times as loud as input signal). The frequency response is 10-30,000Hz. The bass control is set to roll off at 100Hz, the midrange at 1.5kHz with extra large bandwidth and the treble are set at 10kHz. Input impedance is 1 meg with a low ohmic output.
This kit contains the PCB and all necessary parts. The enclosure can be selected, please select 5 knobs, up to 20mm diameter, for 6.3mm shaft seperately.
Here is the bill of material: bill of material
This project is by PedalPCBs, in cooperation with Musikding. If you have any problems with the contents of the kit, please contact Das Musikding (Klaus).
Here is the direct link to the manual with layout and schematic:
Instructions
