Guitar and Stringed Instrument Preamps
CIRCATS Circuit Catalog|
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|GBA/X Series||GPA Series||GPX Series|
|Primarily for electric guitars with adequate signal. The GBA/X series is basically a unity gain high to low impedance converter. GBA's preserve the signal and tone while driving long cables and accessories. GBA uses one 9-volt battery and fits in your pocket. GBX uses two 9-volt batteries for greater headroom.||Intended for acoustic guitars with add-on pickups. The GPA series has a 4.7 MegOhm input impedance and a gain of 10 dB. It uses one 9-volt battery and will fit in your pocket or on a belt clip. Maximum output level is about 1 Vrms.||With it's eXtended dynamic range, the GPX series is a good preamp for connecting guitars to PA system line inputs. The GPX series has a 4.7 MegOhm input impedance and a gain of 10 dB. It uses Two 9-volt batteries for extended dynamic range with a maximum output level of 3 Vrms. The GPX+2 version adds an AC adaptor.|
|GBA-1- price not set yet.
GBX-1- price not set yet.
|GPA-2 - $44||GPX-2 - $55|
GPX+2 - $66 with 12 VAC power adapter