20 Most Recent Alpine Type-R SWR-1222D Car Subwoofer Questions & Answers

9check connections inside sub enclosure(assuming they are in one)mine loosen up after running them hard for months on end.they act the same way yours are.

you will need to buy a recone motor kit for your sub

The subs are making that sound when the bottom out + when they reach full excursion be careful if it keeps happening eventually your subs will fail because you will end up damaging the subs voice coil.

Happy Booming

It may not necessarily be pushing the subs to the blowing point, but you amp may be clipping. If you amp reaches a certain point where is strains for power, it cannot reproduce the frequency. The result is a "popping" sound. Your right in that the amp couldn't be doing that. Another thing to check is what is the ohm load on the amp. Is the amp 2 ohm or 1 ohm stable. You could be damaging the amp if it is not wired correctly. Hope this helps.

You may have blown a fuse, check those to make sure they aren't blown. Verify that the connections are in place again and make sure the settings on the amp are correct as well.
If the fuse isn't blown and the connections are secure, I would make sure that the wire that you have ran from your battery is within the specifications for use with your amplifier.

have your amp tested and is the sub 4 ohm or run to 2 ohm

Your amp is too much, or your gains and bass boost are set too high and the sub is distorting. Distortion happens when any of those three things are happening, basically your sub is no longer moving straight in and out and the cone is trying to compensate. This causes the cone to break away from the coil.

try tweaking the phase controls

Check your fuses and grounds, maybe your remote wire for the amp is loose? If this continues, I would suggest taking it in for a fix.

I think you will find this page helpful.

Assuming that when you say 2ohm you mean that both coils on the subs are 2ohm. If this is true then wire the individual subs in series to make 3 4ohm subs, then wire 'em all together in parallel to your amp so your amp will run at 1.333 ohms, and your subs will see about 400watts rms a piece, because wiring it at 1.333 ohms reduce output by about 20% but this is the best you're gonna get w/o going under amp's stability which is highly unrecommended. Besides those puppies'll still slam hard! Hope this helps...

your amp is tripping out because the subs a drawing to much power get a better amp alpine subs demand a lot of power try a high current amp

check you wiring on your spkr

I'm not a complete audio expert but it sounds like somethings over heating or you have a blown out put bridge.

500W x 1 @ 2ohm

How did you "switch the sub from 2ohms to 4 ohms"?

If you have the swr-1222d as listed, your only options are wiring 1 or 4 ohm, as it is a dual 2 ohm voicecoil.

If it was wired @ 1 ohm - you may have already done the damage to your amplifier - as it is not rated @ 1ohm mono.

There are 3 reasons the amplifier will go into protect mode while playing...
Thermal - overheating due to too low impedence.
Ground Loop/Short Circuit - Blown voicecoil, bad amplifier ground, tinsel slap, etc.
Overload - Impedence not within specs.

Disconnect every wire (including RCAs) from the amplifier. Reconnect only power and ground - make a short wire to loop from power terminal to remote terminal.

If the amplifier stays on without turning off - remove the jumper, add the remote wire, and try again.

If it turns off - the problem is internal and needs repair.

Still on? plug in 1 rca, and re-try.... then the other.

Still going??

Now use an Ohm Meter - or Digital multimeter set to ohms 20, and check both voicecoils. They should read 2ohms +/- .5ohm.

If they are OK, wire up the 4ohm load (series the voicecoils) and turn the gain on the amplifier to 1/2.

Retry -

If the amplifier continues to fail at higher volumes - the thermal protection relay has become weakened because of your improper wiring, and will need to be repaired to solve your issue.

Thanks for using FixYa - a FixYa rating is appreciated for answering your FREE question.

your speakers are hooked up wrong. hook both positives together and both negatives together and bridge it to the amp. if it is one channel hook it up as one together. if it is 2 channel hook positive to one side and negative to the other side.

Hello familia_gome,

If you have 2 subs that are 2 ohms, the final impedance will be either 1 ohm if they are wired in parallel or 4 ohms if they are wired in series. You cannot get a final load of 2 ohms. Unless your amp is stable down to 1 ohm (many amps are not), your best solution would be to wire the subs in series, positive of one sub to the negative of the other sub, and the remaining positive and negative to the amp. Yes, this will result in a 4 ohm load and the amp power will be reduced. But it is better than destroying your amp with too low of a load, and the subs will work fine, just not as loud.