I have 1 polk audio MM2104 10 inch sub which runs 300 rms and 600 peak.

I want the best SQ amp but do want it to hit. It has to be brand new and no more than 200$ What should I get?

Is it dual 4 or single 4 ohm?

The Sundown Audio SAX-100.2 sounds like a perfect fit. 400W at 4ohms bridged. There was a recent sale on them for $200, but that expired on April 20. Email the guys over at SSA, they can give you their best quote.

I also have a SAX-100.2 that might be going up for sale once I install my SAZ-1500D.

for 159 you could get this Kicker ZX300.1 provided your sub is dual 4 ohms and you wire it to 2ohms

or for 50 dollars more they have the zx400.1

http://www.woofersetc.com/index.cfm?fuseac...Product_ID=3962

Two great suggestions, just depends on the voice coils.