Power Acoustik TS1440-2 Car Audio Amplifier - Answered Questions & Fixed issues


It sounds like you have some DC voltage on the RCA input.

You need to figure out if the problem is coming from the head unit or if it is in the amplifier.

If you have a voltage meter, you can use it to find out very quickly.

Set the meter for DC and for a max level of more than 12 volts. Most meters I use have a 30 volt level. That would be a good setting.

Take the black lead and make sure it is grounded to the chassis of the car or to the ground of the power terminal, be careful and make sure it does not touch anything else.

With the RCA cable disconnected put the red lead on the inner part of the RCA cable and see if there is any DC voltage and then check the ground or outer part of the cable. Do the same for the other channel as well.

It should be very close to zero volts. A couple of millivolts is fine to. Any voltage here will cause the amplifier to go into protect mode, which is what is happening to you. You will then need to have the head unit serviced.

If you have a Pioneer head unit, I have seen many of them with an open ground fuse for the RCA jack. That fuse is a surface mounted fuse and is very small and hard to locate on the main board of the radio. If you do have a Pioneer head unit the voltage may seem OK, but you will have an open ground, but that normally does not put the amp into protect. It makes the audio sound very weak and you would have a loud hum. I can help you with that if it turns out to be the problem.

If the voltage on both the RCA leads is OK, then you need to check the amplifier.

You can put the meter lead on the ground of the RCA jack on the amplifier, if you have anything abnormal there, you have a problem in the amplifier. Be careful checking this because you can easily touch the lead to the chassis of the amplifier at the same time as the RCA ground. Most of the time, if yu have a problem in the amplifier like the one you are having, this check of the RCA ground will result in some DC voltage on it. If it still checks OK, then put the lead into the RCA ground and check the positive part of it. You may need to move the lead around a little to get it to touch the metal inside, it is on the bottom part of the hole inside the jack.

I think you will find that you have some voltage on the RCA inputs of the amplifier. To fix this properly you will need to take it in to be serviced.

Sometimes you can ground the RCA jack ground somehow with a jumper wire and then turn the system on with the RCA cable plugged in and it will seem normal. But you do not want to do that as a repair, only to see if the amp will play. If it does play, you know that the problem is in the pre-amp of the amplifier. That would be the only reason to connect an external ground to the RCA jack. You still have a problem in the amplifier. If it does not play normal, you still have a problem in the amplifier if there was some DC on the RCA jack.

Sorry this answer is so long, but the problem you are having will require service of one of your units, you just need to know which one it is. If your inputs get grounded, you will not have the amp go into protect, you just won't hear anything.

Let me know if you need more help and if this was helpful to you a good rating is always appreciated.

Power Acoustik... | Answered on Dec 18, 2014 | 892 views


this is usually an anti theft precaution taken where if the amp is tampered or attempted to be stolen it will shut down making it useless for the thief the only way to get them unlocked is usually by the people whom installed it for you or the manufacturer

Power Acoustik... | Answered on Dec 19, 2010 | 77 views


this is usually an anti theft precaution taken where if the amp is tampered or attepted to be stolen it will shut down making it useless for the thief the only way to get them unlocked is usually by the people whom installed it for you or the manufacturer

Power Acoustik... | Answered on Apr 15, 2010 | 154 views


I don't specifically know what kind of protection circuits Power Acoustik employs however I don't they have input short protection. You can verify it by just unplugging your RCA cables and if the unit still goes into protection the problem exists in the output stage.

Power Acoustik... | Answered on Jan 05, 2010 | 347 views


Hello joshua_m_moe,

A short or ground on the RCA cables or too high of an output level from the head unit could cause this. First, try it with the amp gain turned all the way down. Then, replace the cables with a known good pair. If the problem is still there, it's probably coming from the head unit. If there is another pair of preamp outputs, switch to them. If the problem still persists, I'd suspect the head unit.

Hope this helps.

Power Acoustik... | Answered on Sep 20, 2009 | 353 views


i wud say u cud , did u take it too a shop?..

Power Acoustik... | Answered on Jul 16, 2009 | 33 views


Hello adrieltoyota,

Here is the link to Power Acoustik's contact page. I'd recommend contacting them directly.

Hope this helps.

Power Acoustik... | Answered on Apr 26, 2009 | 289 views


With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp (not on the point where the ground wire connectes to the vehicle) and the head unit on (so the amp will have remote voltage applied), touch the red lead alternately to the B+ and remote terminals of the amp. If the voltage is below ~11 volts, you need to check the wiring feeding whichever line is too low.

Do this with no RCA or speaker wires connected. Let me know what you find.

Power Acoustik... | Answered on May 04, 2008 | 130 views


try turning down the gain a little bit. or check the ground and power connections at amp and battery. they may be loose

Power Acoustik... | Answered on Feb 25, 2008 | 62 views


With your multimeter set to DC volts, the black meter lead on the ground terminal of the amp and the head unit on (so the amp will have remote voltage applied), touch the red lead alternately to the B+ and remote terminals of the amp. If the voltage is below ~11 volts, you need to check the wiring feeding whichever line is too low.

Power Acoustik... | Answered on Jan 16, 2008 | 44 views


On your amp, there should be a switch (on the side probably) that has "LP", "HP", and "FULL" or "OFF". This is a switch for the low pass/high pass filter. Switch it to "LP" as this will allow only low frequencies to go to your subs, what you want. If you don't have that switch, go to an audio store or online audio supplier and get either a low pass filter, band pass filter, or a cross-over, and follow the wiring diagram that comes with it to filter out the high frequencies before they get to your subs.

Power Acoustik... | Answered on Oct 09, 2007 | 338 views


i had one of these amps, if you don't have a good ground, the protection light will come on.

Power Acoustik... | Answered on Mar 18, 2009 | 417 views


Search google for a schematic should be able to find one. I repair amps. Marks Car Audio & Amp repair
e-mail skinnman33 @gmail.com I can be reached at 727-266-6398 Let me know

Power Acoustik... | Answered on Apr 01, 2019 | 38 views


It depends on how many channels are on the Amp. If it's a 2 channel you can bridge it using the positive on one channel and use the negative on the other channel. The Amp will give the sub more power bridging the sub.

Power Acoustik... | Answered on Mar 10, 2019 | 121 views


Long press the button

Power Acoustik... | Answered on Feb 06, 2019 | 97 views


Power to battery. Ground to something in trunk. Remote to blue lead on radio. Rca to line or sub out on radio.

Power Acoustik... | Answered on Sep 14, 2017 | 105 views


Fixya does not sell replacement volume (control) knobs.

Power Acoustik... | Answered on Sep 12, 2017 | 75 views


Reading the ident number off the FET is the easiest way.

Power Acoustik... | Answered on Jun 18, 2017 | 72 views

Not finding what you are looking for?
Power Acoustik TS1440-2 Car Audio Amplifier Logo

24 questions posted

Ask a Question

Usually answered in minutes!

Top Power Acoustik Car Audio & Video Experts

Dalynn Turner

Level 2 Expert

346 Answers

Marvin
Marvin

Level 3 Expert

84625 Answers

The Knight
The Knight

Level 3 Expert

76046 Answers

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

Answer questions

Manuals & User Guides

Loading...