I have for sale two crescendo bc 2000 for sale both are about 1 1/2 years old good deal power by two g31 batt juciebox, and crescendo logic...pushing 2 18" ethos strapped at 2ohm never seen below 12volt...I had to push them....got warm in this hot Kansas City weather...both will come with bass noobs and one with owners books the other might be lost during a move with both boxes from crescendo...I love these things they both went to db-r for repair but nothing major I had a bad ground and thought I blew them both Crescendo BC2000D Stable down to .5ohm on strong electrical. Up to 16.8v capable on BC2000 Remote Bass/Gain knob with Clipping Indicator. Custom tooled, proprietary Multi-piece Thermal optimized Heatsink with patent pending interlocking slide-out CNC engraved top plate. 2 stage copper anodized removable top plate. Silver plated high end hard-wired Tiffany RCA inputs and oversized 1/0 Power/Ground Inputs for efficient current transfer. Overbuilt Power supply with heavy copper traces and Military spec PCB/heavy duty standoffs for extreme vibration resistance. Manufactured using some of the highest quality and most reliable electrical components, with many 3% tolerance components throughout. Full 4-Stage Intelligent protection Circuitry 1 Year/1ohm comprehensive warranty with 2 year/.5ohm optional extended warranty available. Rated Power Output(RMS) Clean RMS power on 13.8v standard electrical system: Ohm Load BC2000d 1ohm 2250 2ohm 1100 4ohm 700 Dimensions: BC2000: 16"L x 2.75"H x 9.5"W (at widest point) I want 550.00 for the pair or 300.00 each shipped no lower I'm upgrading to a bigger amp dd-m4a