Harmon Kardon Subs or Amp?

shahbaz99 · 09-22-2010, 01:21 AM

The subs in my car started distorting for awhile and then stopped working not too long after i got my car. I open the sub box and the speakers seem physically fine. Do i just need to replace the amp? how can i be sure of this?

shahbaz99 · 09-23-2010, 02:48 AM

help anyone?

m3collins · 09-23-2010, 08:42 AM

I would check and see if you are getting a signal into the subs first. If no signal then your amp is toast.

shahbaz99 · 09-23-2010, 03:26 PM

i reconnected them a few months ago and there was nothing happening with the subs. so i guess its the amp then.

jzwu · 09-23-2010, 03:33 PM

If your other door speakers are working, I doubt it is the amp.

The OEM sub is really subpar. I would replace it with an aftermarket one + mono amp.

shahbaz99 · 10-05-2012, 08:49 PM

just wanted to clarify my fix for those who are searching around. The issue was a loose induction coil on the circuit board in the amp. I found a DIY and i re-soldered the coil and glued it down. Never had an issue since. The DIY is easy to find.

09-22-2010, 01:21 AM	#1
shahbaz99 Registered User Join Date: Apr 2009 Location: Toronto,On Posts: 236 My Ride: Clean 330ci View My Garage	Harmon Kardon Subs or Amp? The subs in my car started distorting for awhile and then stopped working not too long after i got my car. I open the sub box and the speakers seem physically fine. Do i just need to replace the amp? how can i be sure of this? __________________

09-23-2010, 02:48 AM	#2
shahbaz99 Registered User Join Date: Apr 2009 Location: Toronto,On Posts: 236 My Ride: Clean 330ci View My Garage	help anyone? __________________

09-23-2010, 03:26 PM	#4
shahbaz99 Registered User Join Date: Apr 2009 Location: Toronto,On Posts: 236 My Ride: Clean 330ci View My Garage	i reconnected them a few months ago and there was nothing happening with the subs. so i guess its the amp then. __________________

10-05-2012, 08:49 PM	#6
shahbaz99 Registered User Join Date: Apr 2009 Location: Toronto,On Posts: 236 My Ride: Clean 330ci View My Garage	just wanted to clarify my fix for those who are searching around. The issue was a loose induction coil on the circuit board in the amp. I found a DIY and i re-soldered the coil and glued it down. Never had an issue since. The DIY is easy to find. __________________

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09-23-2010, 08:42 AM	#3
m3collins Registered User Join Date: Mar 2010 Location: Myrtle Beach, SC Posts: 415 My Ride: 2002 Carbon Black M3 View My Garage	I would check and see if you are getting a signal into the subs first. If no signal then your amp is toast.

09-23-2010, 03:33 PM	#5
jzwu Registered User Join Date: Oct 2009 Location: San Jose, CA Posts: 1,299 My Ride: 2005 BMW 330Cic View My Garage	If your other door speakers are working, I doubt it is the amp. The OEM sub is really subpar. I would replace it with an aftermarket one + mono amp.