KLR series amplifiers are high-efficiency, lightweight, two-channel, high power amplifiers incorporating latest technologies delivering quality and value for professional quality performance at an extremely affordable price. Whether your application is professional audio or fixed performance installation, KLR amplifiers are optimized to provide reliable audio performance with sonic perfection. Covering power range from 1000 to 2500 watts per channel at 2 ohms (20Hz to 20kHz, 1% THD), the KLR-2000, KLR-3200, KLR-4000 and KLR-5000 are perfectly suited for wide range of sound reinforcement. All four KLR amplifiers are optimized to deliver high levels of sustained power, extraordinary audio performance, and road-proven reliability into 2, 4, or 8 ohm loads and are housed in a a uniform, rugged 2RU chassis. Each KLR amplifier uses a state-of-the-art Switch Mode Power Supply which assures you of flawless lows, punchy mids and pristine highs. The output topography of the KLR-2000 is Class-AB, while the KLR-3200, KLR-4000 and KLR-5000 are two-step Class-H design. KLR-Series protection circuits include output over-current protection, DC output protection, chassis internal temperature monitoring, inrush limiting and mains circuit breaker (internal fuse on KLR-5000).