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Corsa Sport » Message Board » Help Zone, Modification and ICE Advice » sub pulsing ... help!!!!!


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Author sub pulsing ... help!!!!!
00fergie
Member
Registered: 24th May 06
Location: Paisley-ish
User status: Offline
30th Dec 07 at 16:13   View User's Profile U2U Member Reply With Quote
just installed a new sub with kenwood amp but there is hardly any noise from it and the sub sort of pulses. the only way i can explain it is it goes dum..dum..dum..dum evey half a second ????

any help would be greatly apprectated to help solve this and get it working correctly cheers!
Gibbon
Member
Registered: 16th Jul 07
User status: Offline
30th Dec 07 at 16:17   View User's Profile U2U Member Reply With Quote
My 6x9's were doing something like this, the wires turned out to be the wrong way round!

Try this?? (i don't know much, but worth a go?)
Sean-B
Member
Registered: 1st May 07
Location: Wolverhampton Drives: 200SX S14a
User status: Offline
30th Dec 07 at 16:24   View User's Profile U2U Member Reply With Quote
first make sure you have a good earth, you need it attached to bare metal bodywork.

have you got the gains turned up enough?

are you running your RCA cables next to your power cables?
00fergie
Member
Registered: 24th May 06
Location: Paisley-ish
User status: Offline
30th Dec 07 at 16:24   View User's Profile U2U Member Reply With Quote
yea av tryed reversing them but no luck cheers anyway
Kurt
Member
Registered: 23rd Oct 05
Location: Hi
User status: Offline
30th Dec 07 at 16:49   View User's Profile U2U Member Reply With Quote
where did you run the cables?

iirc down the passenger sill is part of the loom so ideally run the power cable from battery to amp there and also the remote lead from the hu with it..

then run the rca left and right output cables from the hu to amp down the other sill and that should eliminate any interferance...
00fergie
Member
Registered: 24th May 06
Location: Paisley-ish
User status: Offline
30th Dec 07 at 16:54   View User's Profile U2U Member Reply With Quote
the rca and remote are on one side and the power cable is on the other. the earth is connected to bare metal.
00fergie
Member
Registered: 24th May 06
Location: Paisley-ish
User status: Offline
30th Dec 07 at 16:56   View User's Profile U2U Member Reply With Quote
the gain is turned up enough but at lower gain it stop with no noise :S
craig_s
Member
Registered: 5th Mar 06
Location: Birmingham Drives: mk4 astra gsi
User status: Offline
30th Dec 07 at 23:13   View User's Profile U2U Member Reply With Quote
i had this with my kenwood amp.turned out that the solders on the rca conections inside the amp had broke and were making contact intermitantly.

 
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