The Punch P500X1bd is a mono amplifier capable of 500 Watts into a 1-Ohm load. The Class-BD technology produces bass more efficiently over traditional amps, and its frequency response allows it to be optimized for subwoofers.

• High level input capable with Auto Turn-On circuit
• Features C.L.E.A.N. Set-up
• Optional remote Punch Level Control (PLC2) ready (w/ input clip indicator)
• RCA pass-thru outputs
• 12dB/octave Butterworth crossover
• On-board Punch EQ with +18dB boost @ 45Hz.
• Muted turn on
• Stealth top mounted control panel
• Cast aluminum heatsink
• Short circuit protection
• Over current protection
• Infrasonic filter
• 1 Year Standard Warranty 
• Get a 1 Year Extended Warranty 

With its super efficient Class-bd circuit topology, the P500X1bd will drop some serious BASS! Due to its dedicated low frequency response, this amplifier is optimized for mid-bass speakers or subwoofers only. No need to worry because its 1-ohm capability will drive a pair of 4-ohm DVC subwoofers or quad-configuration of 2-ohm DVC subwoofers with ease.