Question about DHD LCD-9444 Car Audio Amplifier

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Protector active DHD LCD-9444 Car Amp

Protector active DHD LCD-9444 Car Amp

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Missmatched impedence, grounds too weak, blown transistor.

Posted on Aug 05, 2009

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Posted on Jan 02, 2017

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100 watt dhd amp wont turn on


If it's an aftermarket stereo, there's a small blue wire (accessory/antenna) that goes to the amp. So in essence, you have the large cable going to the battery that powers the amp. However, the small power wire going into the amp tells it when to turn on, by the stereo.

Mar 09, 2010 | DHD NTX-2004 Car Audio Amplifier

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I have a 25 wat fuse in my power wire connected to my amp and i keep blowing it. should i put a bigger fuse in it?


Hello grabert205,

You do not say if the fuse blows immediately upon powering up or while the amplifier is operating. If it blows immediately, I'd check the power and ground.

If it is blowing the fuse while operating, I'd try a 30A and see if it holds. At maximum output of 100 watts times 4, the amplifier needs about 31 amps of current at 12.8V. So driving it hard could certainly blow a 25A fuse.

Hope this helps.

Jun 13, 2009 | DHD LCD-9444 Car Audio Amplifier

1 Answer

Does dhd have tech support my speaker connect broke off inside


yes they should have techinal support it should be on the back of your amp. If you open up amp soder a 12 guage wire where the terminal used to be. Thats what i did and never had a problem. hope this helps

Jan 12, 2009 | DHD NTX-2009 Car Audio Amplifier

1 Answer

2 DHD NTX-6812 car subwoofers


First you'll need to buy a good quality amp wiring kit. For the torture your battery receives, get a power cap. The higher the farad the better off. And as for sound quality use really good RCA's and speaker wire. Try to keep the amp as close to subs as possible, and speaker wire a the necessary length. Not to long. Be sure to have a good ground.

Dec 03, 2008 | DHD NTX-6812 Car Subwoofer

1 Answer

DHD AMP


How do you have it wired now?

Impedance of each voice coil?

Number of voice coils per speaker?

Nov 03, 2008 | DHD NTX-2008 Car Audio Amplifier

1 Answer

Dhd ntx 2009


With two 4 ohm svc subs and a 4ch amp the best way to hook it up is as you have described. There is no way of wiring it to get a lower ohm with your set up.

Aug 28, 2007 | DHD NTX-2009 Car Audio Amplifier

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Amp has 3 modes on it ,as a switch,what is this,it has a 2,3,4 channel mode,i have the gold dhd 1000watt x4 channel


first thing 1000@4 means 250w per ch. which means150w usable power.the mode switch is only to reduce rca cables,use 2ch mode if only 1 pair rca available,60hz is a bit low for this amp,90 would work better.

Aug 21, 2007 | DHD NTX-2009 Car Audio Amplifier

1 Answer

DHD ntx6408 subs


Voice coil has been blown open. Most likely alot of times what I do to test a speaker is connect it to a 9 volt battery. on and off and the speaker should bounce. If not speaker is blown. Plus this way you could save yourself lots of problems. If the speaker was shorted and not blown open. You would now possible have a blown amp and home stereo.

Jan 06, 2007 | DHD NTX-6612 Car Subwoofer

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