BassClef BC-17k The 2018 Bass Clef models range from 4kw to 17kw. The first models to hit the market will be the BC-4k and BC-6k, followed by the 8k, 13k and 17k. All new BC amplifiers utilize a newly tooled Crescendo heatsink and revamped circuit boards that stay true to our standards, with even higher power-per-square inch and resilience than before. Stable down to .5 ohm on sufficient electrical. Up to 17v capable. Newly designed, custom tooled, proprietary Multi-piece Thermal optimized Heatsink with patent pending interlocking slide-out CNC engraved top plate. 2 stage copper anodized Top Plate that is easily removable for those who want to color match to their show quality installs. Silver plated & hard-wired Tiffany RCA inputs 4 sets! of oversized 1/0 Power/Ground Inputs for efficient current transfer. Dual 4 gauge Speaker output terminals! Which each terminal containing two outputs contains the same polarity for extreme ease of use! ( + + ) & (- -) Overbuilt Power supply with heavy copper traces and Military spec PCB/heavy duty standoffs for extreme vibration resistance. Handwound heavy duty transformers & inductors to insure no shorting of the windings from excessive vibration. Manufactured using some of the highest quality and most reliable electrical components, with many 3% tolerance components throughout. Full 4-Stage Intelligent protection Circuitry Comes standard with 1 year/1ohm Warranty with optional 2 year/.5ohm Warranty available. Power Ratings (clean power RMS @13.8v) 1ohm: 17000w 2ohm: 8500w 4ohm: 4500w Dimensions: 39.5" Length (between mounting brackets) x 12.5" Width x 3" Height