I am getting an MTX sealed Box that comes with a Thunder 4500 10" in it.

I am wandering what Amp I should get? I think I have narrowed it down to 3. Can someone help me choose, I have no clue on the difference on watts and RMS. I want it to last awhile, but not be underpowered.

Im looking at:
1. Alpine - 500W Class D (Model number: MRP-M500)
2. Power Acoustik - 420W Class AB Bridgeable 2-Channel
(Model number: LFA2-420)
3. MTX - 200W Class AB Bridgeable (Model number: TC2002)

Can someone please tell me what the Class difference is, and what to go with.

I thought that the Alpine was the best bet, but I have no clue.

Thank you!!

 

Depends on if your getting the Dual 4ohm, 4ohm, or, ummm, 12ohm (WTF???) version of the sub.

 

Haha! I thought the same thing a while back when I saw MTX has a 12ohm subwoofer out, but it's because they have setups that have 3 drivers, so 3 drivers present a 4ohm load if all are 12ohms wired parallel. This was big with the older Blue Thunders, Thunder 4000s, and 6000s. I'm only 26 so I'm sure older folks would know of older MTX subs configured that way

As for the OP, it really depends on the impedance load of your woofer like SunDevil2188 said. But out of the amps you chose, I'd go for the Alpine MRP-M500. If your sub has a single 4ohm voice coil, the amp will push 300Wrms, which is more than plenty for your woofer. If your subwoofer is dual 4ohm on the voice coil, then the amp will push around 500Wrms. Honestly, both numbers present a danger of overpowering, but that's where you just set your gain to the proper level and you won't have that issue.

 

I just checked the specs on the woofer, and no matter what the ohms, the peak rms is 225. So if the alpine pushes 300 would this be bad?

I believe that it's only a 4 ohm. Not dual or 12. Lol. Is there Any way to tell by looking at the speaker?

 

The best way to tell on the speaker is to see how many pairs of terminals it has. One MTX subwoofer sold by itself in a box will never be 12 ohms. Also, the subwoofer cna handle 225Wrms regardless of the impedance, but if you're loading the amp @ 2ohms, it will push 500Wrms unless you know to turn the gain down. But since you think it's a single voice coil subwoofer, then the MRP-M500 amp will run around 300Wrms @ 4ohms. It's not bad to run more than the rated power, just be sure to tune your amp properly with the gain slightly lower if you're concerned about blowing out the woofer.

 

Ok, So I have settled on a MRP-M450. I found a guy here in town, that was selling one on craiglist.
It is working, and is letting it go for cheap. He was pushing 2 10's with it. I don't know how he did it, because its only a 1 channel.

I hope that this is a good decision on my part.

 

He made a parallel connection between the subs either at the amp or at one of the subs. That's how you run one amplifier to two subwoofers. Also you won't know if it's a good decision or not until you run it til it takes a dump. I bought a refurbished Rockford Power 1001bd amp on ebay a while ago, and I beat it HARD for over a year until I sold my truck last minute and idiotically didn't remove my system.

 

Do you think that the MRP-450 will still work good for the Woofer? I found that the 450 will still push 225 @ 4 ohms.

 

Well mainly, unless you intend on exceeding the limits of the subwoofer, I wouldn't exceed the limit of the subwoofer. Realistically, you can't expect a whole ton of bass out of a 10" woofer. All I know for certain is the MRP-M450 will compliment the 10" MTX 4500 just fine. Just don't crank the crap out of the gain to make it sound louder. That will destroy your amp and subwoofer. Tune it properly and that is the best you can get out of your amp and subwoofer without running into trouble.

 

Thanks man! I can't wait till it gets here!!

 

fixed

 

ROFL, believe it or not those subs put out quite the bass! About as good as...ummm, some Sonys!!