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 SPECIFICATIONS Max Power Output Ratings Total Max Power: 2300W RMS Power Ratings Per Channel into 1 Ohms, 14.4V (≤1%THD+N): 1 x 1500W Per Channel into 2 Ohms, 14.4V (≤1%THD+N): 1 x 1200W Per Channel into 4 Ohms, 14.4V (≤1%THD+N): 1 x 700W Sound Tuning Crossover: Variable LPF: 50-400Hz (-24dB/oct) Crossover: Variable Subsonic: 8Hz-40Hz (-24dB/oct) General Power Requirements: 14.4 V.DC (9 - 16 V allowable) Input Sensitivity (RCA Input): Hi: 0.4V - 10V / Low: 0.1V - 4.0V High Level Input with automatic power on Cable size: Power Cable AWG 4, SPK Cable AWG 8 Frequency Response: 10Hz – 400Hz THD+N (@ 10W into 4 Ohms): 250 Weight: 5kg Dimensions Heat Sink (WxHxD) mm: 341 x 65 x 185