The Crest Audio CA4 Professional Power Amplifier is designed to achieve unsurpassed sonic performance and long-term reliability— even when operating under extreme stress—in touring orfixed installation applications. Absolute sonic accuracy is the hallmark of every Crest amplifier. Bass is solid and defined to the limits of audibility, with ample current reserves delivered by an “over-engineered” power supply and advanced Class AB output circuit design. Wide-bandwidt output devices assure detailed, transparent high frequency response. And, thanks to Crest’s exclusive IGM circuit, the CA4 will drive 2 ohm loads safely without compromise in performance. Features Crest’s legendary “overbuilt” power supply Toroidal power transformer Latest generation of high-speed, wide-bandwidth output devices Twin tunnel cooling with back-to-front air flow Dual, variable speed DC fans Massive, extruded aluminum heat sinks Balanced XLR and 1/4-inch (TRS) inputs 5-Way binding post outputs or Speakon™ connectors (market dependent) Stereo/parallel/bridged mono mode selector switch Ground lift switch TourClass® protection circuits Recessed, stepped attenuators Front panel circuit breaker switch Modular construction Specifications Max RMS Output Voltage: 58 V / Channel Peak Output Voltage: 82 V / Channel Frequency Response: 20 Hz - 20 kHz, -3dB @ 135 Hz (+0 / -0.3dB, 1W / 8 Ohm) Power Bandwidth : 20 Hz - 20 kHz, -0.9dB /+.5dB (rated power at 4 ohm, 1% THD+N) THD=N: 10k Ohm Unbalanced Class: AB Input Connectors: Female XLR (Pin 2+, dealer configurable for pin 3+), TRS (tip+) Output Connectors: 5-way binding posts or Speakon Connectors Power Supply: 100V-240V, 50-60Hz Idle Current Draw 120V: 1.4A 1/8 Power Draw: 6.8A (typical music, 120V / 4 Ohm) 1/3 Power Draw: 10A (continuous music, 120V / 4 Ohm) Max. Current Draw: 15A (circuit breaker rating, 120V / 4 Ohm) Thermal Emissions: 2030 BTU/hr (1/8 power, 4 Ohm), 2726 BTU/hr (1/3 power, 4 Ohm) Cooling: Back to Front via 2 rear panel mounted variable speed DC fans with removable filters Dimensions: 3.5" H x 19" W x 18" D
