Need help matching sub to amp

[mrboombasstic 10+ year member]

I have a alpine mrp m450 monoblock.. basically 220 watts at 4 ohms and 400 rms at 2 ohms.. I keep blowing the rockford p2 because the amp pushes its limits.. i bought it from best buy and the warrentee just ran out.. i want a sub that will thump with out having to worry about blowing it.. What is a hard hitting sub to match to my amp for a good price.

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[DejaWiz 5,000+ posts]

What's a good price to you?

What size sub? (any constraints on things like mounting depth?)

Sealed or ported and what are your box specs?

 

[shortyg83 10+ year member]

I doubt the amp is pushing the sub to its limits. You most likely incorrectly set the gains. Did you at least use a dmm.

 

[Prowler573 5,000+ posts]

What size Punch Stage 2 and which voice coil configuration?

If you're getting the Dual 2 Ohm version and wiring the coils in parallel to a 2 Ohm load then maybe it's b/c you're sending 400w to a 200w subwoofer that simply can't hang???

 

[mrboombasstic 10+ year member]

here is the deal best buy set up the whole thing for me it is a rockford p2 dual voice coil.. good price is around 200 or so.. it will be a ported box and it needs to be a 12

 

[DejaWiz 5,000+ posts]

I suggest a sub that is a lot more durable than the RF S2: such as the Kicker CVR124.

 

[BJ The Man 10+ year member]

try going to a car audio shop if you have any near you...

they tend to set up more quality of a system.

 

[Kold_Killa 10+ year member]

What size Punch Stage 2 and which voice coil configuration?
If you're getting the Dual 2 Ohm version and wiring the coils in parallel to a 2 Ohm load then maybe it's b/c you're sending 400w to a 200w subwoofer that simply can't hang???

umm??? dual 4 you mean??!?!

even so... I think something is wrong with your setup... shouldn't be blowing them with 400 watts.

 

[SB3BabyHuey 10+ year member]

If anything a RF P3 12 from Best Buy is rated at 500 RMS and 1000 Max and you should be able to pick up last years model for pretty cheap since they came out with the new ones.