I am getting three Infinity subwoofers and I was wondering what amp would be best suited for them?

Question

http://www.crutchfield.com/S-9nEBngosiBe/cgi-bin/ProdView.asp?g=520&I=1081250W
I don't know what amp I should get: a 900 watt or a 180 watt?

Answer 1

wiring your subs in parallel will make them be
900watts rms @ 1.34 ohms

so try to get any amp you want that plays at --
900watts rms @ 1ohm

Answer 2

At a peak power rating of over 1200 watts, you are going to need an amp rated at over 1200 watts. Basically, whatever the peak power is, thats what you are goanna wanna go by. And an amp rated that high is goanna cost you PLENTY of $$$$. I would recommend getting Kicker comp VR subs as opposed to Infinity's. I have never had a problem with Kicker subs, but have heard some problems with many Infinity speakers, particularly with cracked coils. I would say to get 12" Kicker VRs, and get a Fosgate Punch 850, if you can afford it, http://www.crutchfield.com/S-7uQUGEIFPFc/cgi-bin/ProdView.asp?g=120&I=575P8502

Answer 3

So far, most of these answers are wrong.

That sub is 300 watts RMS, 4 ohms. You'll need a mono amp rated at 900 watts RMS @ 1 ohms. Wire the subs like so:

http://i81.photobucket.com/albums/j230/sparky3489/TRI-SERIES-DUAL.jpg

This will result in an impedance (resistance) of 1.3 ohms. Here is an example of an amp:
http://www.maxxsonics.com/autotek/mm_amps_SuperD.html

Here is some info on enclosures (and other tips):

http://spkrbox1.spaces.live.com

Answer 4

Yes, get an amp that can supply the required RMS. The brand doesn't really matter. And don't pay attention to the PEAK wattage number, its there mostly to get attention (since it is always bigger than the RMS number). You don't have to spend nearly as much money as they try to convince you to. Also, the 'harmonic distortion' and 'SNR' and 'dynamic range' numbers aren't as important as you might think: or more to the point, they ARE important in theory, but in practical application, there will be so much noise in your car or listening environment that you will never notice the difference between 92 dB SNR and 100 dB SNR

Answer 5

you'll want an amp (or amps) that will supply the required RMS wattage to each sub. When you have several subs that have a high RMS wattage, it may be difficult to find just one amp to supply the needed power to each sub. it may be better to get more than one amp.

Answer 6

Go with sparky, thats the best answer by far.