Front speakers not working/barely audible

molamann · 01-26-2015, 11:06 PM

Hey everyone, the front speakers on my Z suddenly stopped working for some reason although I haven't tinkered with the car other than disconnecting and reconnecting the negative terminal on my battery.

Also, I don't think the speakers are completely blown because they're slightly audible when I fade the audio setting all the way to the front. Is this a simple fuse/wiring issue or is it possible to blow 2 speakers simultaneously?

SouthArk370Z · 01-26-2015, 11:29 PM

I'm not sure what the odds of blowing two speakers at the same time are but it has to be close enough to zero to call it that. Or you're just one unlucky SOB.

I don't remember there being more than one fuse for audio but not sure. If one of the audio guys doesn't have an answer, check the OM or FSM.

bigaudiofanat · 01-27-2015, 10:56 AM

If you have the Bose system it is a good possibility the stock amp failed (a normal thing) If it's a stock base system it could be the head unit's internal amp failing.

RonRizz · 01-27-2015, 07:18 PM

yeah, too much of a coincidence to happen at the same time. there are other issues afoot here. you may want to try removing the knob, spritz a SMALL amount of electrical contact cleaner in there, and rotate the fade a few times. Its a long shot, but hey, start simple...

molamann · 02-04-2015, 02:39 AM

Quote:

Originally Posted by bigaudiofanat

If you have the Bose system it is a good possibility the stock amp failed (a normal thing) If it's a stock base system it could be the head unit's internal amp failing.

Are there two amps in the Bose models? Rear speakers and bass are working fine.

Also how much of a trouble am I looking at if I were to replace the amp?

bigaudiofanat · 02-04-2015, 01:15 PM

Quote:

Originally Posted by molamann

Are there two amps in the Bose models? Rear speakers and bass are working fine.

Also how much of a trouble am I looking at if I were to replace the amp?

The rear and front speakers are all controled by a main amp in the trunk. The sub has it's own amp.

To replace it with a OEM it's not too back. Remove your floor unbolt a few bolts, unplug 3 harnesses and plug in the new one. If you want to go aftermarket that's a little more trouble. Keep in mind the OEM one's aren't cheap last time I checked.

edconline · 02-04-2015, 07:31 PM

Quote:

Originally Posted by molamann

Are there two amps in the Bose models? Rear speakers and bass are working fine.

Also how much of a trouble am I looking at if I were to replace the amp?

Not much trouble, because I have one sitting here that will never see use again. I'd let it go for real cheap. PM me if you confirm that is your issue.

molamann · 02-11-2015, 03:46 AM

Quote:

Originally Posted by bigaudiofanat

The rear and front speakers are all controled by a main amp in the trunk. The sub has it's own amp.

To replace it with a OEM it's not too back. Remove your floor unbolt a few bolts, unplug 3 harnesses and plug in the new one. If you want to go aftermarket that's a little more trouble. Keep in mind the OEM one's aren't cheap last time I checked.

My rear speakers are working fine so does that mean my amp is fine or can amps still partially feed power while broken?

RonRizz · 02-11-2015, 05:08 AM

It is possible that only the front channels went out. My next step would be to check your speakers, and wiring before replacing an amp though. Take off both door panels and disconnect speakers one at a time and see what happens. It is possible that you have a lead that is shorted to ground somewhere.

molamann · 02-11-2015, 09:13 PM

One thing I noticed was that my front speakers do function flawlessly when I'm using the bluetooth function to talk on the phone. I've looked at the wiring diagram and it seems like the issue lies somewhere between the AV unit and my amp?

RonRizz · 02-12-2015, 05:02 PM

now that makes no sense to me. Same amp driving all sources......Hmmmm.

edconline · 02-13-2015, 01:30 AM

Hmm does the BT call go to both the mids and tweeters or just the tweeters? Could be just your mids are faulty. That would explain the low output for all sources but BT. I'd go check in mine but it's still in 100 pieces.

01-26-2015, 11:06 PM	#1 (permalink)
molamann A True Z Fanatic Join Date: Jan 2009 Location: Los Angeles Posts: 1,666 Drives: 370Z with NAVVVVV Rep Power: 284	Front speakers not working/barely audible Hey everyone, the front speakers on my Z suddenly stopped working for some reason although I haven't tinkered with the car other than disconnecting and reconnecting the negative terminal on my battery. Also, I don't think the speakers are completely blown because they're slightly audible when I fade the audio setting all the way to the front. Is this a simple fuse/wiring issue or is it possible to blow 2 speakers simultaneously?

01-26-2015, 11:29 PM	#2 (permalink)
SouthArk370Z Premium Member Join Date: Nov 2010 Location: South Arkansas Posts: 8,435 Drives: 2014 Challenger Rep Power: 324198	I'm not sure what the odds of blowing two speakers at the same time are but it has to be close enough to zero to call it that. Or you're just one unlucky SOB. I don't remember there being more than one fuse for audio but not sure. If one of the audio guys doesn't have an answer, check the OM or FSM. __________________ Steering Lock Links - Search The370Z Bookmarklet - FSM @ NICOclub Mankind has progressed past the need for war but we haven't evolved that far. - NachoMahma

01-27-2015, 10:56 AM	#3 (permalink)
bigaudiofanat Car Audio Installer Join Date: Jun 2009 Location: Magnolia DE Posts: 8,342 Drives: 2012 Infiniti G37x Rep Power: 853	If you have the Bose system it is a good possibility the stock amp failed (a normal thing) If it's a stock base system it could be the head unit's internal amp failing. kenchan likes this. __________________ Need help with car audio or electronics? Let me know!! Need Help Let Me Know Direct email address reimermatt@gmail.com Owner of: Dynamic Mobile Audio Follow me below https://www.facebook.com/Dynamicmobileaudio/

01-27-2015, 07:18 PM	#4 (permalink)
RonRizz A True Z Fanatic Join Date: Aug 2011 Location: Pine grove, Pa Posts: 2,136 Drives: 2 feet, 3 pedals Rep Power: 6775	yeah, too much of a coincidence to happen at the same time. there are other issues afoot here. you may want to try removing the knob, spritz a SMALL amount of electrical contact cleaner in there, and rotate the fade a few times. Its a long shot, but hey, start simple... SouthArk370Z likes this. __________________ P99rs Head Unit--- Amps- 2 Pioneer Prs800d --- Zapco ST1000MX---Zapco ST-4XSQ---- SI BM mk5 Subs---SI TM65v2 Midbass--- SI M3 mids--- SI M25 xbl2 tweeters ----- 2016 MECA street class 3rd place at world finals

02-11-2015, 05:08 AM	#9 (permalink)
RonRizz A True Z Fanatic Join Date: Aug 2011 Location: Pine grove, Pa Posts: 2,136 Drives: 2 feet, 3 pedals Rep Power: 6775	It is possible that only the front channels went out. My next step would be to check your speakers, and wiring before replacing an amp though. Take off both door panels and disconnect speakers one at a time and see what happens. It is possible that you have a lead that is shorted to ground somewhere. __________________ P99rs Head Unit--- Amps- 2 Pioneer Prs800d --- Zapco ST1000MX---Zapco ST-4XSQ---- SI BM mk5 Subs---SI TM65v2 Midbass--- SI M3 mids--- SI M25 xbl2 tweeters ----- 2016 MECA street class 3rd place at world finals Last edited by RonRizz; 02-11-2015 at 05:13 AM.

02-11-2015, 09:13 PM	#10 (permalink)
molamann A True Z Fanatic Join Date: Jan 2009 Location: Los Angeles Posts: 1,666 Drives: 370Z with NAVVVVV Rep Power: 284	One thing I noticed was that my front speakers do function flawlessly when I'm using the bluetooth function to talk on the phone. I've looked at the wiring diagram and it seems like the issue lies somewhere between the AV unit and my amp?

02-12-2015, 05:02 PM	#11 (permalink)
RonRizz A True Z Fanatic Join Date: Aug 2011 Location: Pine grove, Pa Posts: 2,136 Drives: 2 feet, 3 pedals Rep Power: 6775	now that makes no sense to me. Same amp driving all sources......Hmmmm. __________________ P99rs Head Unit--- Amps- 2 Pioneer Prs800d --- Zapco ST1000MX---Zapco ST-4XSQ---- SI BM mk5 Subs---SI TM65v2 Midbass--- SI M3 mids--- SI M25 xbl2 tweeters ----- 2016 MECA street class 3rd place at world finals

02-13-2015, 01:30 AM	#12 (permalink)
edconline Track Member Join Date: Mar 2010 Location: Edmonton Posts: 855 Drives: 10' MB Z34 6MT T/S/N Rep Power: 22	Hmm does the BT call go to both the mids and tweeters or just the tweeters? Could be just your mids are faulty. That would explain the low output for all sources but BT. I'd go check in mine but it's still in 100 pieces. __________________ View Journal Audio Build

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