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How do i allow my dhd ntx2009 to play @ 2 ohm?
do i alter the wiring to the speakers or
do i alter the wiring leading from the amp into the speakers?
or am i totally incorrect in the above,SO WHAT DO I DO?
WHO COULD HELP?
Hi,
To get 2 ohms you don't have to do anything with the amp. Simply use 2 ohms speakers for each of your output.
From your other post, I gather that you have bridged it to 2 X 500 (from the default 4 X 250). If say your RMS Power at 4 Ohms is about 320 W x 4, just using 2 ohms speaker would give you roughly 600 W x 4 RMS, imagine what you get with X 2 (bridge) setting if your speaker are rated @ 2 ohms.
Also from your other post, you are using "12 inch pioneer svc 800watt subs", how many ohms?
So it will be the speakers determining the ohms. If your Pioneers are rated 4 ohms/800 watts, then you would need four, 2 wired in parallel as explained by Buffalo12980.
Good luck.
PS
But of course, the amp will run hotter and auto protect may kick in more often.
What is the output impedance of the unit - factory specs? use calculations for resistances in series or parallel to get what you want. for example if the amps output is 8 ohms and you have two 4 ohm speakers wire the speakers in series. if your output is 4 ohms and you have two 8 ohm speakers, wire them in parallel to get 4 ohms. another way is if you have one 8 ohm speaker and you want it across the 4 ohm output, find a wirewound resistor that'll take the wattage rated at 8 ohms and put it in parallel so the output sees a 4 ohm load.
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what amp? the speaker wiring depends on the ohmage rating of the amp. if the amp is 2 ohm stable, then you can hook 2 TS-W304C's up to it, both positive leads from the speakers attached to the amp positive, and both negative speaker leads connected to amp negative. this is called parallel wiring, and it reduces the ohmage (resistance) down to 2 ohms. your speakers are 4 ohms, and 2x4 ohm speakers in parallel makes it equal 2 ohms. if your amp is only 4 ohm stable, then you will only be able to hook up one of your speakers to it.
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.
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.
My guess is that one of your subs has a damaged voice coil, which acts like a short circuit to the speaker outputs. If you put an ohmmeter on the speaker terminals you should measure a resistance of not much less than 2 ohms (assuming you've wired the VC's in parallel). If you measure a significantly lower resistance then you have a damaged subwoofer.
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.
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