Question about Fender Rumble 100 Bass Guitar Amplifier
So the amp works fine most of the time but at higher volume and / or bass settings (bass knob way up) when I hit a hard low E, the amp pops once and the hums and makes some kind of descending cracle noise. turn it off and back on and its fine again. If I am gentle on the low E its fine (except for much higher volumes then E and A will do it)
I have also noticed that the power light seems to stay on longer and somewhat dimmer after this happens and after i throw the switch off.
Other than that, it works fine. Any ideas? PLEASE?
I just fixed my bass amp with a similar problem last week: the problem is related to a loose connection on the PCB board (likely).
A bass amp is a rough place for circuitry: the low rumble and power shake a bass amp more than a guitar amp.
In my case, the power transistors needed to be re-soldered and then the grounding bolts and screws needed to be removed and cleaned because the connection was bad. Remember that when two different metals needed for an electric connection are toughing, there is the likelyhood that corrosion WILL happen.
My bass amp did basically the same thing yours did: sounded good at low volumes, but at higher volumes it would act up.
In short, there is nothing you can do (unless you are a repair person): you need to take it to a local music shop and have a tech fix the intermittant contact problem: someone who knows what they are doing should only take an hour at most.
Hope that helps!
Posted on Mar 31, 2009
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Posted on Jan 02, 2017
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