Please!!!! Help Me>>>much Needed

[Prowler573 5,000+ posts]

(A) If there is no protection light that is ON on his amplifier, then the amp is not in protection mode, unless there is no power to the amplifier, or there is something MAJORLY wrong with it.

(B) And... By "protection light", I do not soley mean a light that says PROTECT on it.. So STOP ARGUING WITH ME.

A) NOT all amplifiers that have protection mode(s) utilize an LED to notify the user that that mode has been auto-selected by the unit. The pair of Kenwood KAC-646x amps that I sold on this very forum were equipped with thermal, short-circuit, and under/over voltage protection functions. If any of those became tripped and the amp went into protection, the only light of any kind on the unit (a red triangle that formed part of the 'W' in the Kenwood logo across the unit's chassis) simply turned off. The absence of any kind of visible alert as to its current status did NOT signify that something was, and I quote, "MAJORLY wrong with it." With power, ground, and remote still securely connected it would be for all appearances a DOA amp. But there was one excruciatingly hot day that I did trip the thermal protect mode banging on it pretty hard. There was no protection light on but the unit was most assuredly in protect mode. All that was required was to reset it via turning the HU off then back on. Amp came back on and I kept on jammin'.

B) Then exactly what do you mean?

 

[Decado 10+ year member]

A) NOT all amplifiers that have protection mode(s) utilize an LED to notify the user that that mode has been auto-selected by the unit. The pair of Kenwood KAC-646x amps that I sold on this very forum were equipped with thermal, short-circuit, and under/over voltage protection functions. If any of those became tripped and the amp went into protection, the only light of any kind on the unit (a red triangle that formed part of the 'W' in the Kenwood logo across the unit's chassis) simply turned off. The absence of any kind of visible alert as to its current status did NOT signify that something was, and I quote, "MAJORLY wrong with it." With power, ground, and remote still securely connected it would be for all appearances a DOA amp. All that was required was to reset it via turning the HU off then back on.
B) Then exactly what do you mean?

Thank you.//content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif

 

[Neostar63 10+ year member]

I had the same problem when I first installed my second system. If the bump bump bump is coming from the subs then it is probably the ground. Make sure the ground connection for the amp is a metal to metal contact. Make sure that the contact is good. Your speakers hissing could just be the headunit, or it may need to be properly grounded. Are your rear speakers amped off of the headunit?

 

[drcunnilingus91]

the amp is only powering the subs...the hu is powering the interior speakers...i was told that the rca plugs on the hu may be bad and to get and amp adaptor for stock HUs and try it also i was told that the rca cables need to be moved away from the power wire because i can hear the alternator in the speakers...also, how come when i first hooked up my subs and everything was working fine, the interior speakers became quiet...someone said it was because the hu detected an amp and turned off its own...there is nothing in the manual that talks about turning hu amp back on...please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!