98 Tahoe amp/sub help

Home / the12volt's Install Bay / Car Audio / 98 Tahoe amp/sub help (

Topic Closed)

Welcome Guest :)

Members

Next Page > < Prev Topic Next Topic >

Kayak Jones

Member - Posts: 15

Joined: November 20, 2003

Posted: February 09, 2004 at 12:35 PM / IP Logged

Did I do this right or did I screw it up. JBL 1200.1 mono amp. 98 Tahoe with oem alpine. 4g power from the amp to the +batt terminal. ground from amp to luggage tie down in rear of vehicle. Remote wire from amp to blue wire in alpine wiring harness. Result:no power to amp. Switched remote to blue/with white stripe wire. Got power and promptly began blowing fuses in the amp. Never got sound. just blown fuses. Any ideas from the gurus would be greatly appreciated.

Teamrf

Gold - Posts: 1,031

Joined: January 13, 2004

Location: United States

Posted: February 09, 2004 at 1:21 PM / IP Logged

Gheck your wires....you always want to use the blue with white on the back of the radio for your remote turn on wire. The other wire is your power antenna. Your ground may not be good. Make sure you have scratched all the paint of the ground, and made a good connection. Make sure you are also not drilling into lines in your car (gas line, brake line) Also check your fuse under the hood.

~The Rookie~

Rookie of the year that is...

Don't let the smoke out of your equiptment..it doesn't go back in.

Kayak Jones

Member - Posts: 15

Joined: November 20, 2003

Posted: February 09, 2004 at 1:50 PM / IP Logged

I have switched the remote to the blue/white wire. thats when the fuses began to blow. Possibly ground related? Power line fuse to amp (inline 100amp is good) just the three 40 amp fuses on the amp itself are blowing. Assuming the ground is good, would speaker wiring to the subs have anything to do with this, and if not ,possibly bad amp?

forbidden

Platinum - Posts: 5,352

This member has made a donation to the12volt.com. Click here for more info.

This member has been recognized as an authority in Mobile Audio and Video. Click here for more info.

Joined: November 01, 2003

Location: Alberta, Canada

Posted: February 09, 2004 at 2:12 PM / IP Logged

Disconnect both the rca cables and speaker wires from the amp. Power the unit on / off again, if it still blowing fuses, it is a bad amp. If it is good, plug in the rca cables, if it blows fuses, chances are the rca cables have been clinched and are going to ground. Run a new temporary rca cable and see if the fuses still blow. If they do, chances are that you have a bad input stage in the amp. If the amp is Ok still, have a good look at the speaker wiring to see if it is going to ground as well.

Top Secret, I can tell you but then my wife will kill me.

Kayak Jones

Member - Posts: 15

Joined: November 20, 2003

Posted: February 09, 2004 at 2:32 PM / IP Logged

I'll give this a try this evening and let you know. Thanks for your suggestions.

Kayak Jones

Member - Posts: 15

Joined: November 20, 2003

Posted: February 09, 2004 at 2:39 PM / IP Logged

One more thing. The amp has to sets of terminals for speaker outs, 2 pos and 2 neg. With single voice coil subs 4ohm each, what are my wiring options for the subs (assuming i can get the@#$ ting to work). It is 2 ohm optimized and 1 ohm stable.

customsuburb

Gold - Posts: 1,813

Joined: January 17, 2004

Location: United States

Posted: February 09, 2004 at 6:23 PM / IP Logged

if you wire 2 4ohm subs to the single output of your mono amp you are going to be getting a 2 ohm load(this should be fine as long as its not too much power for your speakers).

customsuburb

Gold - Posts: 1,813

Joined: January 17, 2004

Location: United States

Posted: February 09, 2004 at 6:26 PM / IP Logged

sorry i was thinking of a mono amp. if your amps 4 ohm 2 channel output isnt too little power for your subs each then just connect one sub to each channel. otherwise you are pretty much out of luck unless your amp is a mono amp that has two sets of mono outputs. if this is so then I would just connect one sub to each terminal to get a 2ohm load.

Kayak Jones

Member - Posts: 15

Joined: November 20, 2003

Posted: February 09, 2004 at 7:31 PM / IP Logged

Update: Unhooked all speaker and rca cables. Re wired ground to a good source (seat belt bolt). Checked remote wire. (good voltage). Turned on car, blew 3 fuses. Checked all terminals with meter (all ok). Checked power wire for short (nothing visible and excellent voltage to amp)). Started vehicle, blew 3 more fuses. Checked everything else we could think of, then ran new direct power wire from amp to battery. Touched new wire to + terminal. Loud popping noise followed by smoke and OH SH#T, SOMETHINGS BURNING smell. The general consensus was that the amp was bad to begin with, because we couldn't find any other problems. If it wasn't, it dang sure is now. It was a refurbished JBL BP1200.1. Called the dealer and am taking it back tomorrow for a refund or exchange toward a different amp. Did we miss anything anyone else can think of and either way, thanks for the prompt input.

Kayak Jones

Member - Posts: 15

Joined: November 20, 2003

Posted: February 12, 2004 at 11:56 AM / IP Logged

Update: New amp works fine EXCEPT that rear door speakers were not working after amp install. They were working fine before and no wiring changes were made to install the new one. (the system was already wired for the one that was blown) now mind you that the speakers only didn't work when the cd was playing, they worked fine on fm. Also, Could not get any am radio reception after powering up the amp. So, I switched the rear door speakers wire to the blue/white stripe wire that the remote turn on for the amp was wired to. presto, everything worked fine. Until this morning that is when all of a sudden I lost am reception again, (fm ok) plus the rear speakers are still working fine. I am stumped. Any and all suggestions welcomed.

Next Page >

Printable version

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

Search the12volt.com

Follow the12volt.com

Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.