Pioneer PRS-D1000M Car Amplifier

The units are externally bridgeable and permit two separate amplifiers to be joined together as one, doubling the power to a single woofer or voice coil. Best of all, no special cable is required - a simple RCA cable and proper setting of the Sync mode will get this.

Pioneer's proprietary Multi-Amplifier Synchronization System (MASS) technology allows one amplifier (the master) to control the settings of other amplifiers when two or more amps are "strapped" together. Especially important for multi-amplified systems, this powerful Pioneer technology eliminates the need to adjust each amplifier gain separately.

For added flexibility, the variable crossover lets you set the levels at which higher-frequency signals will be filtered out, so that the remaining lower-frequency signals get sent to your sub(s). Where they belong. This optimizes your system's efficiency and delivers the best possible sound quality. You can adjust it continuously between 40 to 240Hz.

The subsonic filter lets you remove power-robbing frequencies below the tuning of your subwoofer/enclosure. The subsonic is set at 20Hz with a steep 18dB/Octave roll off for optimal effect.

What, you don't own a Pioneer head unit? The PRS-D1000M's speaker level inputs allow you to connect your OEM unit (or any unit that doesn't have the typical RCA-type inputs) without having to buy add-on adapters.