I have a Polk Momo 12" subwoofer that I am looking for an amp for. It is a single voice coil sub that can handle between 200 and 400 watts RMS @ 4 ohms. I am looking for a good amp that won't break the bank. I would like something that is pretty efficient so it doesn't draw a ton of power from my battery. Any suggestions would be appreciated. Thanks in advance.

how much you looking ot spend......the cheaper amps will be less efficient

Preferably under $150. I don't mind buying referbs or amps off of ebay to keep the cost down.

Try this model. IMO, best bang for your buck out there. <BR> <BR><a href="http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&amp;category=18797&amp;item =5778600343&amp;rd=1" target="_blank">http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&amp;category=18797&amp;item =5778600343&amp;rd=1</a>

would suggest kicker zr 360 or 600... <BR> <BR>they are very, very, high quality and VERY underspeced amp...can push anything known....

US Acoustics makes good budget amps..

also forgot about mmats... <BR> <BR>not much to look at but super high quality..they have awesome class d that is reasonabley priced...

The stuff in my boat has to be budget since it's "venerable". I am quite happy with the performance of my Hifonics stuff.

check out <a href="http://www.ikesound.com" target="_blank">www.ikesound.com</a> , great place to buy cheap closeout car audio equipment.

Yeah, I actually looked on that site and I saw a Orion 3002. Would that be a good amp for this application?

that amp would do alright. its' 300 watts. but if your sub says it'll take up to 400 I'd give it 400. maybe something like this. <a href="http://www.ikesound.com/product-product_id/3358" target="_blank">http://www.ikesound.com/product-product_id/3358</a> If a sub is rated to take 400 watts go ahead and give it 400 cuz it'll actually take a lot more. Just don't get crazy with the bass boost and gain settings. Distortion will kill a sub way faster than too much power any day.