Crescendo BassClef-17K Amplifier The BassClef-17K (BC-17K) crowns Crescendo’s redesigned BassClef series with elite competition-tier output and a new proprietary thermal-optimized heatsink. Staying true to the brand’s standards of reliability and efficiency, the 17K is engineered for the most demanding SPL and demo builds, delivering 17,000W RMS @ 1Ω, stability to 0.5Ω on sufficient electrical, and up to 17v capability. Key Features Stable to 0.5Ω (with sufficient electrical) Up to 17v capable for high-voltage systems Proprietary Multi-Piece Thermal-Optimized Heatsink with patent-pending interlocking slide-out CNC-engraved top plate 2-stage copper-anodized, removable top plate — easy color matching for show builds Silver-plated & hard-wired Tiffany RCA inputs for clean, reliable signal transfer Two oversized 1/0 power & ground inputs for efficient current delivery Dual 4-gauge speaker output terminals with same-polarity pairs (+ + / − −) for easy parallel wiring Overbuilt power supply with heavy copper traces, military-spec PCB, and heavy-duty standoffs for vibration resistance Hand-wound heavy-duty transformers & inductors designed to prevent winding shorts from vibration Premium components throughout, many at 3% tolerance Full 4-stage intelligent protection circuitry Warranty: 1 year @ 1Ω; optional 2-year @ 0.5Ω extended warranty Power Ratings (Clean RMS @ 13.8v) 1Ω: 17,000W 2Ω: 8,500W 4Ω: 4,500W Dimensions Footprint (between mounting brackets): 39.5" L x 12.5" W x 3" H Why Choose the BassClef-17K? For builders chasing record-setting output without sacrificing reliability, the BC-17K delivers massive clean power, rugged construction, and superior thermal management — a flagship monoblock purpose-built for the most extreme car audio systems. You may also like: Crescendo Audio Symphony S1 Monoblock Amplifier