Sometimes size doesn't matter. Alpine packs Class-D amplifier technology into their PDX amplifiers for awesome power from a compact frame. These small-but-mighty amps free up valuable space and run so cool they can be stacked together for a sweet multi-amp setup.

Details:

• 4-channel car amplifier
• 150 watts RMS x 4 at 4 ohms (150 watts RMS x 4 at 2 ohms)
• 300 watts RMS x 2 in bridged mode (4-ohm stable in bridged mode)
• variable high- and low-pass filters (30-400 Hz, 12 dB/octave)
• Class-D amplifier design
• stackable installation design with front-panel controls
• quick-connect speaker connectors
• preamp-level inputs
• MOSFET power and output stages
• CEA-2006 compliant
• fuse rating: 30A x 2
• 4-gauge power and ground leads recommended — wiring and hardware not included with amplifier
• 10-3/16"W x 2-1/2"H x 8-7/8"D