Question about 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

My amp has a mode selector,2,3,4 mode switch built into the cross over section of the amp, it is the 1000watt 4 channel amp,which i have bridged into 2 channel driving 2x 12 inch pioneer svc 800watt subs,on my low level input i have 4 rca inputs which have an rca linked to it. MY QUESTION IS,WHAT MODE SHOULD I RUN THE AMP ON,TO REALLY MAKE MY WOOFERS POUND. OR WHAT DO YOU GUYS RECONMEND TO GET THE SUBS CRACKING,SO TO SPEAK.THE LPF IS @ 60HERTS,OF A PRE AMP WITH SUB MODE OUTPUT SWITCH SET AT 90HERTS,ITS A 7VOLT RMS PRE AMP. THE TROUBLE IS I FEEL THAT THE DHD NTX2009 COULD OFFER ME MORE THAN ITS DOING AT THE MOMENT. HELP HELP IT ,AT THE MOMENT GIVES ME JUST UNDER 140 DB,OFF A 2FARAD CAPACITOR. SEND A REPLY TO

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Re: amp has 3 modes on it ,as a switch,what is this,it...

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.

Posted on Aug 22, 2007

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Wanting to wire 2 dual 4ohm speakers to the amp do i use 1 channel or both?

Hi, the amp is stable down to 1 ohm per channel, so use both channels--one per speaker.

Feb 27, 2011 | DHD US Amps Xterminator XT-4000D

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How do I use this amp in one or 2 channel modes. The switch on the amp only shows 3 and 5 channel operation?

Run it in 3 channel with 1 to subs and the other 2 to the right and left front speakers or just don't hook up the channels you don't want to use.
It would be a shame to not use this amp to its full potential

Apr 15, 2010 | Eclipse PA5532 Car Audio Amplifier

1 Answer

Pioneer car audio amp GM 6300F (new)

Does your amplifier have a Channel swith which says 2/3/4 channel mode. If so and you are running the amplifier in Bridged mode, try changing the setting to 2 channel or Bridged mode.

Aug 20, 2009 | Pioneer GM-6300F Car Audio Amplifier

2 Answers

Ok . i have a pair of crossfire subwoofers, @

Your amplifier is 4 channel... and only 2 ohm stereo capable.

You will get the most power putting 1 subwoofer wired in parallel on each BRIDGED channel.

This will give you a 2 ohm stereo load.

Both + on 1 subwoofer to + terminal on amplifier bridged channel 1
Both - on 1 subwoofer to - terminal on amplifier bridged channel 1

Both + on 1 subwoofer to + terminal on amplifier bridged channel 2
Both - on 1 subwoofer to - terminal on amplifier bridged channel 2

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Jun 10, 2009 | DHD NTX-3102 Car Audio Amplifier

1 Answer

How do i bridge 3 subs to a 4 channel amp

My information shows the XM-1652Z as being a 2-channel amp. It will not be stable below 4-ohms in bridged mode. For best power, your subs will need to be 2-ohms with all 3 wired in series. This will present a 6-ohm load to the amp. After wiring the subs in series, connect the positive speaker wire to one channel (+) and the negative speaker wire to the other channel (-). For the 1652Z no other wiring is necessary. For subs you will also want to set the LPF (80Hz) switch to the "ON" position (to the right).

Keep in mind that the rated output is only 400 watts RMS at 4-ohms in bridged mode. That's kinda wimpy for 3 subs. You would probably obtain better results from two 2-ohm subs, each connected to a separate channel. That way each sub would be getting 200 watts RMS, still low but there's lots of good subs that will sound pretty loud with 150-200 watts

Mar 25, 2009 | Sony Xplod XM-1652Z Car Audio Amplifier

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I was given a kenwood kac742, what do i have to do to hook up 2 subs to it tom

You need:
1) 2 4-ohm subs
2) Appropriate enclosure
3) Amp wiring kit with RCA's

Connect each sub to a separate channel and set both mode switches to "MONO" (center position). In 2-channel mode, this amp is only rated at 80 Watts RMS, so you need relatively small and efficient subs. I'd say nothing bigger than 8" or perhaps 10". Rockford-Fosgate P1S48 (8") and R1S410 (10") will work OK with 50-150 watts RMS. Some others will also.

Mar 25, 2009 | Kenwood Car Amplifiers

2 Answers

I have an american legacy series 2 1000watt apm

Check and see what size fuses it uses. Your watt power means nothing without good fuses. My suggestion would be to go buy 40a fuses and replace the ones you already have.

Feb 27, 2009 | Legacy Audio American Legacy II LA290 Car...

1 Answer


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

2 Answers

Lanzer vibe 416 1000watt Amp stay in protection mode completey

I'm no pro but I've fixed a few amps in my time.When you had the 12's hooked up it was working fine you say,but when you upgraded to 15's is when the problems started. You probably bridged it too low of ohms and it maxed the amp out,it got too hot and started to burn up the channels. all that matters when you buy speakers and amps. The 12's was probaly 4 ohm coil speakes and the kickers are 2 ohm. The kickers bridged together positive to positive, negative to negative would bring it down to 1 ohm load witch I dought the lanzar can handle. If your a fix it yourself kind of person like me. I can point you in the right direction on where to looke for parts to fix your amp....

Jan 30, 2008 | Car Amplifiers

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