Question about Phase Linear UPA424CS Car Audio Amplifier

3 Answers

Phase Linear UPA424...No sound

I recently purchased a Phase Linear UPA424 amp about 2 days ago..I was working on my car, installing the spekers and what not and when i went to hook up the amp to the speakers i had nothing. It worked the day before just fine. I figured it might be the battery but still nothing. The unit is getting power and the green led has light, but no out put signal is comming from the amp.

Posted by Chris Einerson on

  • Chris Einerson Sep 10, 2006

    "I figured it might be the battery but still nothing." <--i charged the battery by the way.

×

Ad

3 Answers

Anonymous

I hooked one of these up in my cherokee a few weeks ago and I wound up having it in for a coulpe days befor I got it working it would work briefly and stop I changed power wires twice before getting it going by using both sides of some 14 ga speaker wire for the + and ground

Posted on Mar 30, 2007

Ad

Anonymous

I returned it and got a new one...no problems with the amp after that.

Posted on Jan 15, 2007

Ad

Anonymous

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers

I had the same problem with mine but i had the 224 version first worked nice just for a small system but i just got this one today and i hooked it up to a small sub box how i had the one before and it just dosent work the other one quit beforhand and i thought it just went bad so i figgerd id buy this one but after about and hr n 1/2 of work to show nothing kinda was a depressing moment, ive gone through my wireing about 4-5 times now and drawn it out 2 times on eveything ive done im just lost, ive even tryed diffrent rca and also tryed a diffrent radio and still nothjing tryed messing aorund with settings still nothing its kinda a bummer

Posted on Jan 15, 2007

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Free manual for mosfet phase linear upa424 240watt amplifier
You do have 12 volts connected to the remote connection, correct?

Dec 11, 2013 | Phase Linear UPA424CS Car Audio Amplifier

1 Answer

Phase linear model UPA424 wire diagram
YOU WILL NEED A SOLID WIRE FROM UR DECK TO UR AMP 4 A REMOTE WIRE AND A GOOD SET OF RCA JACKS

Jan 31, 2010 | Phase Linear UPA424CS Car Audio Amplifier

1 Answer

Runing jest back spekers
Yes, you will need to disconnect wires to the front speakers

Sep 05, 2009 | Phase Linear UPA424CS Car Audio Amplifier

1 Answer

Extreme distortion/static in music.
you might have blown your speakers. Thats what it sounds like, if it got loud with a lot of low-end then it got all staticy and distorted, you fried teh speakers.

May 27, 2009 | Phase Linear PLC 400

1 Answer

Whining noise from amp.
hear are couple things to try   try running your power and  (ground) both directly from your battery   to the amp and  to the receiver .. if this doesn't help try purchasing a noise suppressor  and wire your receiver threw this  it should solve your problem  

Feb 13, 2009 | Phase Linear UPA424CS Car Audio Amplifier

1 Answer

No cd audio from my phase linear uv8
It sounds like you have a factory amp in the vehicle. Check behind the radio to see if you have the blue wire from the deck hooked up to anything. You probably do. So take the blue with white stripe wire coming from the deck and hook that up instead of the solid blue wire.

Jan 20, 2009 | Phase Linear UDV9010 Car DVD Player

1 Answer

Amp is in protect mode, green light is on.
If the amp is going into protect, it likely has shorted output transistors. To eliminate other possible causes, read through the following page.

Amp in protect mode - troubleshooting

Let me know if you have any other questions.

Nov 29, 2008 | Phase Linear UPA424CS Car Audio Amplifier

1 Answer

Wish to purchase a certain model am/fm / cassett in dash player deck single dimension
Well, I finally just broke down, went out and purchased a brand new am/fm/cassette player. These type stereo decks are kind of scarce now -a-days. It was reasonably priced and hope it will last longer than the old Phase Linear PCR4500.
Thanks for sharing and caring.

Best Regards,
ORTH
04/09/08

P.S. The new rig is a completely different name manufacturer.

Apr 09, 2008 | Car Audio & Video

4 Answers

Brake bypass code
I just got this same unit on thursday of last week and put it in myself. All you have to do is ground the pink wire out and it will work without having to put a bypass code in. Hope this works for you as well.

Mar 31, 2008 | Phase Linear UDV9010 Car DVD Player

1 Answer

Humming noise thru my speakers
You are getting engine noise through your amplifier. To solve this problem you will need to install a filter in-line with the DC path, or install a voltage regulator in-line with the DC path.

Sep 08, 2007 | Phase Linear UPA424CS Car Audio Amplifier

Not finding what you are looking for?

View Most Popular

UPA424CS Car Audio Amplifier

  • Car Audio & Video

Related Question

Free manual for mosfet phase linear upa424 240watt amplifier

  • Phase Linear UPA424CS Car Audio Amplifier

Open Questions:

0 Answers

Phase Linear UPA424 amp Can it be Bridged? I bought this for Subs and thought I read bridgable on the outside but no mention of bridgable on outside or in. 12 kenwood 10" older subs. All4 channels of amp available. Can I bridge 1&2 for 1 sub and 3&4 for the other? Will it damage the amp. Each channel has either the "+" or "-"in a circle. Are these indicaators of bridging campatable? Thanks from a rookie!

Jun 26, 2008 | Phase Linear UPA424CS Car Audio Amplifier

Related Topics

Phase Linear UPA424CS Car Audio Amplifier Logo

461 views

Ask a Question

Usually answered in minutes!

Popular Questions

10 Answers
My phase linear uv7i can't plays dvd's or cd's and the screen is totally blue

Phase Linear UDV9010 Car DVD...

2 Answers
Phase linear uv8020

Phase Linear UDV9010 Car DVD...

1 Answer
Humming noise thru my speakers

Phase Linear UPA424CS Car Audio...

2 Answers
My radio is stuck on mute. How do I turn the mute

Phase Linear UCD200

4 Answers
Brake bypass code

Phase Linear UDV9010 Car DVD...

Top Phase Linear Car Audio & Video Experts

xxxxxx xxx

Level 3 Expert

5023 Answers

The Knight
The Knight

Level 3 Expert

76584 Answers

Brad Brown

Level 3 Expert

18665 Answers

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

Answer questions

Manuals & User Guides

Loading...