DHD ntx6408 subs

Dhd amplifierDisconnect 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. Worth fixing.

this could be your connection to the amp .make sure the positive leads from the sub are on the positive terminals on the amp .first try one sub alone and then connect the other one .with the second one try swaping the terminals but if your using quality products you woudnt have to just connect the leads to the terminals the belong to .positive on positive and negative on negative

wrap a striped speaker wire around the back of the rca out put on your cd player and for the record that aint a 2300 watt amp its like a 300 watt amp

have you got the auto ariel lead from the head unit connected to the remote connection on your amp?
if not then that is your problem, it turns the power on when you turn on the unit. and turns it off when you switch unit off.

hope this helps

check if you have connected the dvd/rom according to the specifications entered. if no then do it and check again if the player reads the disk. if the problem persists, and i you suspect its the manufacturer's error, then you can get a free replacement according to the warranty details

if your talking box and all, i would say put it in a ported box ( or you can port your own if you know how) other than that make sure they're hooked up at 4 ohms (look up subwoofer wiring diagrams on the internet if you need to be sure) you can mess your sub or amp up going to low on ohms....less ohms = more power.......i hope this is what you were asking....let me know

Did you check to make sure that you didn't blow a channel in the amp? Another thing to check would be the connection on the inside of your box, maybe there is just a wire loose.

is the remote lead properly connected to the head unit? if the power led is on then the power cable and earth must be good, check the remote lead 2 your head unit first, if thats all good try looking at the amp to see whether theres a small switch to adjust the output going to the subs, if its very low or right off then nothing will be going through to the subs. if its on high and fine it only realy leaves the neg and pos inputs from the amp 2 the subs.

cheers, adam

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.