I was trying to find a related thread but after reading through 5 pages I gave up, an being that the search function isnt working now, I will ask it here. Sorry if its a repost.

I have an Infinity sub ( 1000 watts, 300 RMS) in a sealed box. What would be the best amp to get to power the sub. My buget is around $150 - $200.

TIA

Alpicone

 

if its a dvc sub i would go with an alpine mrd-301 350 watts rms at 2 ohms, its somewhat complicated to adjust but the adjustments that it has on it are very very useable and create amazing sound. i love mine i have it powering a pioneer ts-w1500spl and it pounds

 

What do you mean by dvc?

I just looked at the specs again and it only 250 W RMS. The model number is 1030w.

The other specs on it are:

Sensitivity (2.83 V @ 1M) 88 dB
Frequency response 25 ~ 400 Hz
Nominal impedence 4 OHMS

 

dual voice coil, based on ur specs i dont believe it is. so you would need something that produces its power at 4 ohms rather than 2. maybe an alpine mrd 501 250 rms

 

DVC means "duel voice coil".

Since your woofer is in a sealed box it's not going to be very efficient unless you have addiquate power to push it. So here is what I would consider
when purchasing a amp.

1st: Woofer power rating "we know it's 250w RMS"

2nd: Amplifier should have a built in adjustable crossover with hi, low or full range filters.

3rd: If your woofer is DVC, consider purchasing a bridgeable 4 channel amplifier. I say this mainly because a 4 channel amp. is more versitile then a 2 channel amp & can be used in other configurations down the road if needed. Such as powering mids & highs. Using a 2 channel amp is a good way to go too because you can maintain a 4ohm load on the subwoofer. It just doesn't have the versitility of a 4 channel amp. And purchasing a "quality" 2 channel amp that produces enough power @ a 4ohm load will deffinitly cost ($$$) you. So if you go with a 4 channel amp. the amplifier power should be a "MINIMUM" of,
75w RMS x 4 @ 4ohms.
when bridged power should be around,
150w RMS x 2 @ 2ohms. (bridged)
This will give you 150w RMS for ea. voice coil, a total of 300w RMS. this is plenty of power to sufficiently power the subwoofer in a sealed enclosure.
Notice I wrote "MINIMUM", this is because the gain will probably need to be turned up fairly high with this amount of power. An amplifier that will produce more power will not need to be turned up so high & will run alot cooler because it's not working as hard as a lower powered amp would.

4th: if your subwoofer is single voice coil, consider purchasing a bridgeable 2 channel amp or a mono amplifier.
Power should be a "MINIMUM" of
2 channel amp
150w RMS x 2 @ 4ohms.
300w RMS x 1 @ 2ohms. (bridged)

Mono amp
300w RMS x 1 @ 4ohms.

I know alot of people take into consideration the ohm load of the subwoofer, but I feel it is more important to consider the load the amplifier can handle instead. A good quality amp should be stable @ a 1ohm load.

I hope this helps you out. Just remember when purchasing an amplifier you should really think about the quality of the product. Quality products will last a life time if you take care of them. So consider your purchases as "life long investments". Try to stay away from cheap equiptment such as (Rockwood, Crunch, Jenson, Power Acoustic, etc). These are temparary pieces & you can always guarentee a few things when it comes these brands. "They perform like ****, last for **** & look like ****". Pretty much they are poor investments & I basically would rather flush my money down the toilet then even use them. I don't even think if someone gave one to me for free I would use it, simply for the fear of a possible fire happening.
If money is an issue then try to stick with either middle of the road equiptment such as (Pioneer, Sony, Clarion, Kenwood, Blaupunkt, Fosgate, etc). Or if money is no question then hey why not spring for the good stuff ( Alpine, Eclipse, JL, Phoenix Gold, Nakamishi, Macintosh, Memphis, etc). I'm sure people are gonna post some flames about my choices. But most of them are quality products and have a excellent life expectancy. So I mentioned them. Just stay away from Sony HU & sh!tty amp's & you'll be fine....