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Old 15th January 2013, 11:34 PM   #1
diyAudio Member
Join Date: Jan 2013
Default amplifier going out with a pop. Bad ground?

i have two jl amplifiers. One xd 400/4 and one slash 100/1. Both on the same ground on chassis. Now the slash goes out randomly with a loud pop! Noise. Is this because i put them on one ground. Note:slash is the one farthest grounded to the point. Do i need to make different grounds to prevent protection mode?
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Old 16th January 2013, 09:20 PM   #2
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Join Date: Apr 2008
Location: Carlisle, England
I had trouble with a 2092 based amp popping, screeching and sometimes a siren type sound on power off.
It turned out it was due to having too much smoothing on the power supply.
I cured it with a small PIC monitoring the power supply and resetting the 2092 if the VCC voltage got too low.
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