earth should be grounded to chassis or steel bolt somewhere very close to your amp. Not on your negative terminal of your battery
scotthurst01,
Mar 31, 12:38pm
Bad connection somewhere, tried starting from the beginning!
tafftasticlad,
Mar 31, 12:42pm
Is your power cable rated high enough for your amp! It could be limiting the current you're able to draw.
Is your sub old! Some subs are designed with a king of glue on their coils that acts as an insulator. When they've been driven hard for a long time this insulation can actually melt (particularly on cheaper subs), and then can short-circuit when driven above a certain limit for any time during future operation.
Next time your sub cuts out quickly check the impedance (resistance) across your subs terminals and check that it matches the stated resistance for your sub (anything from 2-8 ohms. If it reads something close to 0 your sub is forked.
If it??
jasongroves,
Mar 31, 3:35pm
Change you earth connection. You SHOULD NOT have it wired to the battery, as above. Also as above, check cables are up to the task. Sounds like its clipping, meaning you have the gains on the amp/s turned up too high. Set everything on your head unit to 0 (, 'Loud' off,balance, fade, treble, bass etc etc). Turn amp gain to 0 also and switch any 'bass boost' type switches off. Put on a song and turn the volume up to normal/desired listening level. Slowly turn up the amp gain until it sounds right (to you) and there is no clipping. Then do the same with the head unit.
jasongroves,
Mar 31, 3:37pm
If you get stuck.I may be able to take a look.
jasongroves,
Sep 13, 10:14pm
Also, check the amp is getting enough air. If its jammed somewhere where air cant circulate. Then its going to overheat and turn itself off.
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