Question for subwoofer guru's

Cuba · 02-10-2013, 10:55 AM

So heres what happened.

In my car im running a rockford fosgate p500 2 channel. with one rockford fosgate p1 subwoofer (i think 200 watts).

My friend got a new subwoofer and wanted to make sure it worked. so i turned off my car, unplugged my subwoofer and plugged his in. Turn on the car turn on music and his subwoofer works fine.

Then i turn my car off and plug my subwoofer back in and it no longer works. Music is playing but subwoofer is just not working.

Please let me know if you have any suggestions.

kaigoss69 · 02-10-2013, 11:13 AM

You may have shorted the speaker wires causing the amp to go into protection, or the amp fuse could be blown. May also want to check the fuse on the amp positive power cable, which should be near the battery.

Cuba · 02-10-2013, 07:20 PM

Thanks ill look into that.

BklynTico506 · 02-12-2013, 09:08 AM

The EXACT same thing happened to me in my E39. Changed one sub for another, and then switched them back. Everything was playing except for my sub. After looking properly and changing amp fuses, I realized I had somehow permanently damaged my amp. It would not come out of protection mode.

Cuba · 02-17-2013, 01:01 AM

Quote:

Originally Posted by BklynTico506

The EXACT same thing happened to me in my E39. Changed one sub for another, and then switched them back. Everything was playing except for my sub. After looking properly and changing amp fuses, I realized I had somehow permanently damaged my amp. It would not come out of protection mode.

weird. after it happened I plugged in my old sub a JL w3 and that sub was working. then i tried the rockford fosgate one and it still didnt work.

So im using the w3 now and the RF is in my basement.

SCGT · 02-19-2013, 01:53 PM

I would make sure an internal connection didn't come loose on the RF. Pull the driver and make sure all is still connected, or just do a continuity check on the speaker terminals of the subwoofer enclosure (not wired to your amp).

02-10-2013, 10:55 AM	#1
Cuba Cuba 87 Rep 1,676 Posts Drives: 07 328xi Join Date: Jul 2010 Location: PA iTrader: (12)	Question for subwoofer guru's So heres what happened. In my car im running a rockford fosgate p500 2 channel. with one rockford fosgate p1 subwoofer (i think 200 watts). My friend got a new subwoofer and wanted to make sure it worked. so i turned off my car, unplugged my subwoofer and plugged his in. Turn on the car turn on music and his subwoofer works fine. Then i turn my car off and plug my subwoofer back in and it no longer works. Music is playing but subwoofer is just not working. Please let me know if you have any suggestions. __________________ 07 328xi Monaco Blue\|Premium\|Cold\|Navi\|CA\|LLumar\|Mtec\|DDM\|aFe\|Ambe r-Gone\|Rear Fogs\|Bimmian\|PY-Speed\|OEM\|e92-lighting\|V1\|BavAuto\|Weisslicht\|Cyba\|Beyern\|Falken\| Sonic Tuning\|ECS Tuning\|JL Audio\|Rockford Fosgate
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02-10-2013, 11:13 AM	#2
kaigoss69 Brigadier General 301 Rep 3,969 Posts Drives: '08 335i Join Date: Jul 2008 Location: JAX iTrader: (6)	You may have shorted the speaker wires causing the amp to go into protection, or the amp fuse could be blown. May also want to check the fuse on the amp positive power cable, which should be near the battery. __________________ Mobridge DA2 > JBL MS-8 > ARC XDi 600/4 > JBL Gti 408 Mids & Vifa OT19 Tweeters; PG Ti2 1600.5 > Morel HCW-10 & IDMax 15
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02-10-2013, 07:20 PM	#3
Cuba Cuba 87 Rep 1,676 Posts Drives: 07 328xi Join Date: Jul 2010 Location: PA iTrader: (12)	Thanks ill look into that. __________________ 07 328xi Monaco Blue\|Premium\|Cold\|Navi\|CA\|LLumar\|Mtec\|DDM\|aFe\|Ambe r-Gone\|Rear Fogs\|Bimmian\|PY-Speed\|OEM\|e92-lighting\|V1\|BavAuto\|Weisslicht\|Cyba\|Beyern\|Falken\| Sonic Tuning\|ECS Tuning\|JL Audio\|Rockford Fosgate
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02-12-2013, 09:08 AM	#4
BklynTico506 Pura Vida 13 Rep 297 Posts Drives: Monaco Blau '08 E90 Xi Join Date: May 2012 Location: NY/PA iTrader: (0)	The EXACT same thing happened to me in my E39. Changed one sub for another, and then switched them back. Everything was playing except for my sub. After looking properly and changing amp fuses, I realized I had somehow permanently damaged my amp. It would not come out of protection mode.
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02-19-2013, 01:53 PM	#6
SCGT Banned 0 Rep 36 Posts Drives: 2007 335i Join Date: Apr 2012 Location: Chandler AZ iTrader: (1)	I would make sure an internal connection didn't come loose on the RF. Pull the driver and make sure all is still connected, or just do a continuity check on the speaker terminals of the subwoofer enclosure (not wired to your amp).
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