Bridging Amps for Subwoofers

Bridging adds power but cuts the current by half. Usually makes things worse. I would recommend a new amp. The good news is that there are many great woofer amps around for not a lot of money. How much power do you need?

The manufacturer suggests 400 watts.
Out of the many great ones, who would you recommend?

I think it is important to use a high current amp that easily doubles into 4 ohm loads. Most subs have pretty nasty low impedance characteristics. I doubt that the manufacturer recommends 400 watts @ 8 ohms. Since you are not using the amp in a "full range" application, you do not need to spend big bucks so long as it has sufficient current and handles the impedance dips.

Bridging does not half the current. Read a recent thread entitled BIAMPING under Speakers.

Make that "halve". Thank you. :)