Lanzar MAXP1601D 3000 Watts Monoblock Class D Amplifier (Certified Refurbished) This Certified Refurbished product is tested & certified by Lanzar to look and work like-new. The product includes all original accessories, and is backed by a 90-days warranty. 1 x 750 Watts RMS at 4 Ohms - 1 x 1500 Watts Max at 2 Ohms - 1 x 3000 Watts Max at 1 Ohms - Bass Boost Circuit Variable Phase Shift Control - Variable Subsonic Filter - Variable Low Pass Crossover - Anti-Thump Turn-On - Tri-Mode Configurable Soft Turn On/Off - RCA Line Input and Output - T.H.D: &lt;100.50% - S/N Ratio: &gt;95dB White Light Illuminated Crossover Control - Power Protection LED Indicators