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Would this subwoofer work with this amp?
I have a phonics digital pd-393 1000 watt 2 channel amp @ 300 watts bridged. I want an alpine swr-12D4 subwoofer that has rms range of 300-1000 watts. So would this setup work together or will there be problems I'd someone could please help. Also I just want a single subwoofer not two. If that won't work what subwoofer would be best? Thanks
My amplifier is 2 Ohms stable .
Edit
Can you email me I have more questions. Carloshipolito505@yahoo.com
I do want to get a more powerful amp in the future but money is an issue a little right now. Know I have a question what about a Alpine swr-12D2 or any dvc @ 2 ohms. Then what if I wire one in series making it 4 ohms then bridging to the amplifier how would that outcome? Thanks
3 Answers
- BadMoFoLv 68 years agoFavorite Answer
That amp won't work well with that sub because that sub has two voice coils that are 4 ohms each. Your amp can only handle a 4 ohm load bridged, not 2 ohms (which is what the total resistance will drop to if you wire both coils in parallel, which is how you wire that sub to most monoblock amplifiers).
I'd look into a cheaper alternative that can handle 300-350 watts RMS and will still sound decent. This Polk Audio would be a better alternative.
http://www.sonicelectronix.com/item_18187_Polk-Aud...
-----EDIT------
The amplifier you said you have is a two channel amp. Each channel is 2 ohm stable, but bridged it is not. It is 4 ohm stable when bridged.
The sub you have has two 4 ohm coils. There is only two ways to wire that sub to a bridged amp. Both coils in series for 8 ohms or parallel for 2 ohms. The only other option is to wire each coil to each channel of the amp, but that's no different (power wise) than wiring it for 8 ohms and bridging the amp, except each voice coil could get different signals from two separate channels which is never good. One coil will be trying to move in while the other is moving out and that's never good.
Do what you want, but it's a waste of money buying the SWR-12D4 for that amp. If you plan on buying a more powerful amp later, then that's different, but you gave no indication of doing so.
- 8 years ago
It would work but it would put a lot of stress on the amp. that particular subwoofer is very power hungry and will more than likely cause your amp to overheat very quickly. if your looking on getting one of the subwoofers you might just want to upgrade your whole system. And have you also thought about just the alpine type S? there just a little less brutal than the type Rs but they sound nice. I would recommend a 2000 watt mono if you really want this sub and go with a good brand that way your getting a clean signal too. Some amps will send a bad signal thus damaging your subwoofer.
Hope this helps!
Source(s): personal experience - 5 years ago
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