Alpine R2-A150M R-Series Mono Subwoofer Amplifier - 1500W at 1-Ohm, Hi-Res Certified- The Alpine “R-Series” line of speakers, subwoofers and amplifiers have a heritage of sound quality you can hear from a block away, and the newly added R-Series amplifiers are no exception. Aside from their best-in-class performance, these amplifiers are tuned to emphasize the characteristics of the R-Series speakers and subwoofers, giving you that legendary R-Series experience. They have a 15% reduced footprint compared to the previous models and are easier to install. FEATURES Install Terminal Layout: One side Small footprint for easy installation Screw terminals (for speaker and power cables) General Class-D Amplification (Digital) Channel Design: Mono Channel Top panel controls Thermal Management Control Top Mounted LED Power/Status Indicator Speaker Level Input with remote turn on Crossover: Adjustable Low-pass (LPF) and Variable Subsonic filter Adjustable Gain Control Bass EQ Remote Bass Control (RUX-KNOB2) Ready Alpine RUX-KNOB.2 Remote Bass Knob