I 've had 2 Infinity reference series 1230w subwoofers for about a year now and about a week ago one of them stopped working. The sub just kept cutting in and out. When i pressed lightly in the center of the cone it would come back on... I checked all of my wiring and everything seems to be fine and now the sub won't work at all. to make things worse, my 1 working subwoofer started doing the same thing today. They don't sound blown at all but i know the problem lies within the subs. Any ideas???
Agree with Kev. Even if the woven lead wire looks ok, it can still be bad. I unsoldered it, clipped a lil from both ends, and re-soldered it. Works great now.
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The amp may no thav eenough to push these subs, these are top of the line subs, they probably require a bigger amp, if you are running other speakers through this also, you certainly need another amp, or a bigger one with more channels. also double check all your wiring.
Hello monkey_flea,
Your subs will share the amp output. And if you are not careful, you'll end up blowing them. The amp puts out 1300 watts RMS at 2ohms, the subs have an RMS power range of from 75-350 watts, and you'll be driving them with 650 watts each. A better power match would be to series the subs to present an 8ohm final load. This will reduce the output power to a level the subs can handle. Or you could buy 2 more 12.1's and connect them series-parallel for a 4ohm load and each sub would still be getting 325 watts RMS, just about the maximum they are rated to handle.
Hope this helps.
2 things to try, one. run your RCAs on the opposite side of the car as the positive wire. if you still hear the thumping try changing your RCAs. if you still hear the thumping, try a different anp or head unit. if you still hear the thumping, your subs are blown. best of luck
if you use a right channel on one coil and a left on the other different frequencies are going in different directions in each channel thus blowing a coil or badly damaging it-z
the woven leads between the terminal posts and voice coil go bad. they may appear intact, but they can still go bad. I unsoldered them, clipped a lil off the ends, and re-soldered them. works great.
Not sure if it's what was meant by previous poster. But if you're just driving the two subs off the 4 ch, and no other speakers, your best bet is to run pairs of bridged channels, ie use the 4 ch as a more powerful 2 ch amp. Then independently run one sub on each of these paired channels.
If you bridge all 4 channels (not sure if this is an option on this amp), and then run your subs in series, you will likely lose out compared to the peak power you could be seeing with two independently paired channels.
I suggest we go for 2 ohm to preserve the amp and not heat things up so bad.
Your Subs are Dual Voice Coil(DVC) and 2 ohms each coil. I am going to tell you the wiring to insure you get balanced response from both Subs. We will wire the Subs Voice coils in Parallel to make them 1 ohm each. Then we will wire the Amp to the subs in series to make the total load on the amp 2 ohms. When you have series to both subs each sub gets the same current.
Example of my coding :SUB1VC1+ = Subwoofer 1 Voice Coil 1 Postive terminal.
SUB1VC1+ to SUB1VC2+
SUB1VC1 - to SUB1VC2-
SUB2VC1 + to SUB2VC2 +
SUB2VC1 - to SUB2VC2 -
AMP + to SUB1VC1 +
SUB1VC1 - to SUB2VC1 +
SUB2VC1 - to AMP -
This should give you a good repsonse.
Adjust your Bass Gain down very low at first. Also cut you LPF to about 60 hz. Crank up the volume on a bass test Audio track, Adjust the Bass Gain up unitl you get distortion. The turn it back a little. This is proper setting for your Gain.
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