Jas
Member
Registered: 13th Oct 04
Location: Mid Wales
User status: Offline
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im using a jl audio sub 12w3
and a jbl 75.4 amp
and for some reason when i turn the bass up and the volume the song comes on the goes off for 2 or 3 seconds the comes back on for 2 or three seconds and so on!!!
y is it doing this!!! hellllllp!
wouldnt be 2 bothered if my front comps where working but i havent set them up yet!
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Will94
Member
Registered: 1st Nov 02
Location: Nr. Ipswich, Suffolk
User status: Offline
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If its only when you crank it up, then it could be a number of things. But check ALL connections, earth your amp off to a peice of bare clean metal for starters 
If its still doing it then with it turned up (so its flicking on and off) measure the voltage at the amp terminals with a multimeter. it will vary but only a tiny amount. If its jumping up and down loads then it'll be a weak power connection in the main +ve feed.
Other than that, could be a faulty remote lead from the head unit or something gone screwy within the amp
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RKS
Member
Registered: 2nd Mar 04
Location: Gloucestershire UK
User status: Offline
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Get someone to check the lights on your amp and see if the protect light comes on, i used 2 experience this and i found out it was caused because my sub enclousures were too small!! and it was sending too much feedback from the sub back to the amp
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Richie
Member
Registered: 3rd Dec 02
Location: Newport, Wales
User status: Offline
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With you mate i can guarantee its a wiring problem to your sub, that amp you have is not designed to take 2 or 1 ohm which is probably what is being shown to the amp.
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Jas
Member
Registered: 13th Oct 04
Location: Mid Wales
User status: Offline
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quote:
Originally posted by Richie
With you mate i can guarantee its a wiring problem to your sub, that amp you have is not designed to take 2 or 1 ohm which is probably what is being shown to the amp.
ive got an old jbl gt4 in atm! il have 2 sell the jl one then rich yeah?
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