Crest Audio CPX900 Power Amplifier * Crest Audios patented GCL™ Gain Comparator Limiting System for maximum output without audible distortion * Two-speed demand-sensitive fan and Turbo Cooling heat dissipator design * Detented gain controls * Power, GCL and Signal Present LEDs on each channel * Built-in 150Hz/18dB/octave Subwoofer Crossover with 1/4" TRS output * Current in-rush limiter * Over-heat, short circuit, clip limiting, faulty load and DC circuits protect your valuable sound reinforcement speakers and the CPX amplifier * Barrier strip, balanced XLR and 1/4" TRS inputs with signal pass-through * Neutrik® Speakon® and 5-way binding post outputs * Separate bridged outputs featuring Neutrik Speakon connector and resessed mode switch * Rear-panel GCL defeat switch * Rear rack supports * 14-gauge steel chassis * Mil-spec fiberglass circuit boards * Massive toroid transformer and storage capacitors * CPX™ Series Power Amplifiers: Three rugged, ultra-affordable power designs in the great Crest Audio tradition. * In typical Crest Audio fashion, weve over-built and over-engineered the CPX Series. Especially considering their highly competitive prices. * We included built-in subwoofer crossovers, low-cut filters to prevent woofer cone flutter, fan cooling, Speakon® output connectors and much, much more. Gain Comparator Limiting. When a signal has waveform peaks that exceed the amps power-supply rails, waveforms get chopped off, or “clipped.” This undesirable distortion most often happens when the amp is turned up too high (too much gain). GCL™ senses clipping (or current limiting) and dynamically reduces the gain for a few milliseconds. You can drive the CPX amp to its maximum (and beyond) without hearing audible distortion. Dont settle for less. If you need maximum performance on a tight budget, you owe it to yourself to get your hands on a CPX Series amplifier from Crest Performance.