Car Audio & Video Logo

Related Topics:

Posted on May 19, 2009
Answered by a Fixya Expert

Trustworthy Expert Solutions

At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.

View Our Top Experts

Amp doesn't come on

My Clarion APX1300 amp was powering my 2 12" MTX subs, then the other day it just stopped working. Went behind head unit and everything is still connected, checked the fuses and they are ok. Unhooked my subs for a couple of days and noticed that my amp was coming back on. So I took my subs out and gave them to my GF since her subs didn't work anymore and the subs work fine in her car. Just bought some 10" Visoniks to put back in my car. Now the amp won't turn on again. Any answers?!

  • rheabarb May 20, 2009

    I actually unplugged the speaker wires and the RCA wires after I wrote that. The amp power on light will come on for about a second after the car has sat for a while, but then shuts off. When I try to shut car off and put back into the on position the amp will not light up at all. So yes, even after I unplugged the sub and RCA wires, it still would not work. It had worked perfect for almost a year that I have had it, then the other day nothing!

  • rheabarb May 20, 2009

    Also, is that amp ok for the subs I have now? I just purchased two 10" Visonik V105PR. 250W RMS each and 500W Max each. Single 4 ohm Voice coil. If not, what are some choices on amps that would work best and also under $100? I prefer Mono amps, but any would do. Thx

    BTW, the amp was powering 2 12" American Pro VS412.

×

1 Answer

Anonymous

Level 3:

An expert who has achieved level 3 by getting 1000 points

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Vice President:

An expert whose answer got voted for 100 times.

  • Master 655 Answers
  • Posted on May 20, 2009
Anonymous
Master
Level 3:

An expert who has achieved level 3 by getting 1000 points

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

Vice President:

An expert whose answer got voted for 100 times.

Joined: Dec 13, 2008
Answers
655
Questions
0
Helped
314402
Points
2081

Hello rheabarb,

You did not say whether or not you checked the wiring going to your subs. Many times, a shorted or grounded speaker wire will cause an amp to fail. And if the amp powers up OK with the subs disconnected, I'd suspect one or more of the wires.

Hope this helps.

  • Anonymous May 21, 2009

    Hello again rheabarb,



    Well, if all of the wiring has checked out OK, then I'd have to suspect a problem with the amp itself. If you have had it for less than a year, it should still be under warranty.



    The amp is rated at 400 watts RMS into 2 ohms so your Visonik 10" subs would be OK wired in parallel.



    As for amp choices, there aren't many monoblocks available for under $100 that will produce the power you need. The least expensive sold by Crutchfield is the Orion Cobalt CO500.1 at $139.99. About the only ones for under $100 have names like Boss, Hitron, and Lanzar. And your other stuff, the Clarion and Visonik are in a little higher league. It's not JL or Alpine, but it's good equipment. For another $10, also at Crutchfield, you could get a slightly higher powered Kenwood, the KAC-6104D. But keep in mind that Kenwood is not CEA2006 compliant and their published figures may be inflated. If it were me, I'd spring for about $50 bucks more and get the Alpine MRP-M500. Alpine is CEA2006 compliant.



    Hope this helps.

×

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
1answer

Just got a mtx TE1501D. Worked well for several days then while driving I hit a pot hole and a nasty noise went throughout system. Now when I power up my amp the subs push all the way out and stay there...

Check your amp wire connections
batt 12v
ground to chassis
remote wire to head unit(radio)
Rca cables
your grounding something or wires are touching each other.
1helpful
1answer

I got 2x 1200 watt clarion subs and a 400 watt amp is the amp big enough

the amp is way to small if you want enough power check out the new soundstream amps or the new mtx amps and you will need to add in a second battery.
1helpful
1answer

No sound when amp is powered up

Make sure rca cables are tight at the amp and head unit, if you didn't put the sub in the box yourself or buy a retailer.. check the connections yourself. if it's an old amp it may be burnt up. some head units these days require you to turn the sub on (especialy alpine) really need more info on what you got and how old it is.
0helpful
1answer

MTX Thunder 3401 not responding. Lit but no sound.

turn down music open sub box and put another speaker at wire and check again if work means sub is ok if not check the signal cable, and put there the speaker to try signal
0helpful
1answer

The car is all wired the power is good the ground is good the amp work and i have the sub turned on with the nob but the sub doesn't work it has a 800w rms amp and two 400w rms subs mtx 7500

You could have the subs wired in the wrong ohm. It might be turning off the amp and check to make sure that you rca cables from the head unit to the amp are connected right.
0helpful
1answer

Subwoofers won't work and they are brand new

Hello,

I've got a pair of these MTX's subs powered from a Fusion 450 watt 2-channel amp. For the price, they are great. By the way, they are 4-ohm.

My first suspicion would be that something in the first incorrect wiring damaged either the amp or the subs. Can you explain specifically what the "installing the subs incorrectly" means? Was the amp output shorted out at any time or was it operated without a load? Either of these conditions will fry an amp and sometimes, the protection circuitry doesn't work either.

First make sure that your amp is still working. Check both the primary power fuse, usually located near the vehicle battery, and the fuses on both sides of the amp. Make sure that when you turn the system on, the power light comes on steady (blinking is protection mode). Test your subs one at a time on a speaker output.
0helpful
1answer

Cant figure out my car audio problems!!!!!

There are a couple of tests you can perform. I'd first recommend checking the shield ground. You'll need an ohm meter. The details can be found on the following page.

RCA shield ground test

You can also test the output with the multimeter. Set the multimeter to AC volts. If it's not an auto-ranging meter, set it to a voltage range of ~2v AC. Disconnect the RCA cables from the head unit. Touch one meter probe to the outer ring of the head unit's RCA jack. Touch the other probe to the metal contact in the center of the RCA jack. With the head unit near full volume and a clean signal source, you should read at least one volt on musical peaks. If you have a bass disc or a test tone disc (~60hz sine wave), use those.
1helpful
2answers

Car sound system. only sub is giving off sound. other 4 speakers dont work at all

Could be bad outputs from the back of your head unit or also could be bad rca cables. Make sure the amp is on and powered.
Not finding what you are looking for?

775 views

Ask a Question

Usually answered in minutes!

Top Clarion Car Audio & Video Experts

xxxxxx xxx

Level 3 Expert

5117 Answers

ZJ Limited
ZJ Limited

Level 3 Expert

17989 Answers

Brad Brown

Level 3 Expert

19187 Answers

Are you a Clarion Car Audio and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...