Question about DHD NTX-2139 Car Audio Amplifier

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Why does my amp stay in protect mode?

When I hook my amp up and give it power it stays in protect mode.

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The most common reason an amplifier goes into or remains in protect mode is shorted output transistors. To eliminate other possible reasons for it to go into protect, read the following page.

Troubleshooting - Amp in Protect Mode

Posted on Aug 04, 2008

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The amp has either been pushed past it's limits or has a component thats fried.

Posted on Dec 13, 2014

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You have a wiring problem somewhere either power or possibly your speaker wiring

Posted on Nov 30, 2014

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Posted on Jan 02, 2017

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1 Answer

Bridging two12" subs and one 15" sub to my Rockford fosgate T 1500bd amp


assuming all 3 subs are 3-4 ohms, running all 3 in parallel (the 3 positive leads all attach to the amp positive terminal, and all 3 speaker negative leads connect to the amp negative terminal) will bring you at or above 1 ohm, which the amp is capable of handling. With 1500 watts, you will want to use 8 gague power leads for the amp, 12 gague speaker cables, and an inline 120 amp fuse between the amp and the battery, within 1 foot of the battery.

Jan 11, 2017 | Rockford Fosgate Car Audio & Video

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JVC KD-R316 install in Valiant Regal I'm replacing the stereo in my car, it had an aftermarket system. The new unit has power and will show display and eject disc but won't turn on. Where did I messup


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Jan 09, 2017 | JVC Car Audio & Video

1 Answer

So how do wire this set set up to a bridged amp any help would be appreciated


assuming that is a dvc dual 4 ohm speaker, and you have a 2 ohm bridged amp, you run a positive from each side of the speaker into the bridged positive of the power amp, and run a negative from each side of the speaker into the negative bridged terminal of the amp. if, indeed, you have 2 4 ohm voice coils, running them bridged in parallel wiring will bring the load to 2 ohms. if you have 4 voice coils, of 4 ohms apiece, you could run all 4 parallel into the amp, but that would bring the load down to 1 ohm, and you would have to make sure you8r amp can support 1 ohm operation.

Jan 07, 2017 | Car Audio & Video

1 Answer

I have a boss 400w riot 2-4 channels,how do i connect the high level wires? Because stereo doesn't have rca's


to use the high level leads, you have to isolate the wires going to each speaker (if using 4 channel mode) or isolate the wires going just to the rear if you are using 2 channel mode. you have to strip a small piece of the insulation off each speaker wire, and run it into the amps high level input harness. if you dont have the high level input harness, you can get a 2 channel high level to rca adapter for around $20. basically, you are tapping into the signal to the stock speakers to feed music to the amp. make sure you get all your positives and negatives correct. brighter wires are usually positive; however you may be faced with sa speaker which uses a grey wire, and another grey wire- the second with a black line. you will have to, again, turn to internet research to determine which is positive and negative, if the colors are not obvious.

Dec 30, 2016 | Boss Car Audio & Video

1 Answer

I need the power plug wire harness that u hook the speakers up


If you wish to get some details; check the site linked here. Viewing it in "Mosaic" or "Magazine" will make surf easy. Pull up older posts. Surf the site with patience. Do a search by type in the brand name of your device at its search box and press "Enter".

Electro help

Jun 17, 2014 | Car Audio & Video

1 Answer

How do I reset a Kenwood KDC-24BU flashing "PROTECT"?


Take of your positive battery cable. This should erase all your memory, since the car has no more power.

Jun 01, 2014 | Car Audio & Video

1 Answer

How do I reset a Kenwood KDC-24BU that is flashing "PROTECT"?


Replace the blown/shorted amplifier output Mosfets that are causing it, and it will then be happy to reset itself :)

Jun 01, 2014 | Car Audio & Video

2 Answers

No power to amp


check and try finding another grounding spot

May 16, 2010 | Lightning Audio B4.250.2 Car Amp

3 Answers

Lightning audio b150.2 as soon as +12 is hooked up blows 25 amp fuse and the c2 1000uf/35v capacitors blow???????


Disconnect all speaker connections and rca cables. Leave power, ground and remote wires intact. Try turning on again. If you still have a protection light your amp is faulty. Hopefully you have warranty. Double check all connections .A thumbs up would be greatly appreciated if this answer is helpful to you.

Aug 25, 2009 | Lightning Audio PC2 Capacitor Car Audio...

2 Answers

RCA CABLES


RCA cables are the best way to get the audio from your head unit to the amp. If your head unit doesn't have RCA outputs, you might be able to use the speaker outputs of the head unit to connect to the "high power" or "high level" inputs of the amp, if the amp has such inputs (check your manual).

Mar 23, 2008 | Lightning Audio LA1.300.2 Car Audio...

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