Question about Crate SPA1600 Power Amplifier - SPA Series Car Audio Amplifier
I have had this amp for a few years and it has always had a habit of cutting out, very irratically. I have reduced the problem down to the the input jacks, I think. If I put a small rubber washer on the input jack to prevent it from going in too far it reduces the problem but doesn't eliminate it. I recently noticed that the #1 feedback filter light comes on when the problem occurs. Crate told me a while back they could replace the jacks, at my cost, as they are not under the warranty (surprised me!!). But not sure the jacks are the entire problem, and why replace with the same style of jack?? HELP PLEASE!!!
Sometimes an amplifier's preamp can't handle certain signals/frequencies at a high gain, so they cut out. Bass guitars are especially prone to giving such a strong signal.
I bought an older, nonworking bass amp recently and fixed it just to find it had the same problem. Best solution is to put a low ohm resistor at the amps input, but if you turn your guitar down to half volume it'll have the same effect: should prevent it from cutting out.
Posted on May 20, 2008
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