Quote:
Originally Posted by loose_lips_sink_ships
I've heard of basses using 9 volt batteries, but I don't understand why a bass would need them. Is there build in effects like a vox guitar?
EDIT: Nevermind, I still don't see the point of having an "active" guitar/bass.
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Active basses need batteries because they have pre-amps within them. Similar to an external equalization or tone shaping stomp box or piece of rackmount gear. Active circuits can boost or cut signals therefore they need to be powered.