Question about Crate SPA1600 Power Amplifier - SPA Series Car Audio Amplifier
I had a Crate G120C XL COmbo amp that was only outputting very quietly. I checked all pots. They were operating as they should be. I checked the speakers outs, the footswitch and its connections and both guitar inputs ..all operational. Problem: turns out when you plug an effect into the effects loop, there is an internal switch that lets the rest of the circuitry know an effect is there and routs the correct internal signal to it. As soon as I plugged in a pedal, Voila!!!! Full volume was completely resorted, no problem at all. So at this point I can either limp along with a pedal in the loop that isn't even doing anything, or I can go inside and repair the switch OR bypass it (short it out) so the loop is no longer functional.
There are other situations that can cause the same symptoms, but this is what was happening in this particular case. Amp cost me $50, sold it for $225. Nice. Got me another one-- almost same low price.
Posted on Feb 15, 2014
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Posted on Jan 02, 2017
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