Hi, I want to upgrade my amplifier. I have a Sundown 1500 now. And I can sell it easily (I hope so !). I want more power for the btl N2. the sub is in a ported box : 2.1 ft3 at 32 Hz. * I like the Sundown 2500 but it is not in stock, maybe on some e bay stores though. * I saw the Stetsom 2k5, but I have never run stetsom, and I don't know. there are not so much reviews about them. I only sam people usingthe most powerful ones for comps, on videos. * There are several Soundstream, like the Rubicon or others. * There is a Sundown 3000 at db-r too for a good price too ! The amp will be hooked on a Kinetic HC 1200 in the cargo arera, with a stock batt and a stock alt under the hood. everything runs fine with the 1500. Maybe I'll have to upgrade something with more power. I will see when it's done. Give me your opinions , please. I'd like to hear more about the Stetsom amp. What would you do ? Ooh, and the budget : 700 - 800 $ max for the amp itself. I'll add shipping and taxes later to have the final cost. Thanks guys,...and gyals !