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MTX XTHUNDER800.5 800-WATT RMS 5-CHANNEL FULL RANGE CLASS D AMPLIFIER Extreme Power Continuing the Legacy that MTX Audio started almost 20 years ago with the development of the Thunder amplifier series, we introduce the next generation – XTHUNDER. These amplifiers are designed to deliver extreme power to the most demanding speaker system designs and are capable of driving subwoofers and full range speakers alike. The XTHUNDER800.5 5-channel amplifier will power four speakers and a thundering subwoofer or two with power to spare while easily handling the abuse of long hours of extreme play. FEATURES Full Range Class D Design - Offers Excellent Efficiency for Both Subwoofers and Full Range Speakers Low Profile Design - Allows for Installation Anywhere Variable Bass Boost - Allows you to boost your bass output by up to 18dB @45Hz Cast Aluminum Top Cover - Efficiently Dissipates Heat Variable Butterworth Crossover - a 12dB/Oct crossover that allows you to set the frequency your speakers will play down or up to Triple Protection Circuitry - Thermal, DC Offset, and Short Circuit Protection circuitry ensures the amplifier will protect itself in the event of a problem SPECIFICATIONS 4Ω RMS Power Output 75 x 4 (HF) + 300 x 1 (LF) Signal to Noise Ratio >70dB 2Ω RMS Power Output 125 x 4 (HF) + 400 x 1 (LF) THD <0.2% Frequency Response 10Hz - 20kHz F/R + 10Hz - 250Hz Sub Maximum Input Signal 5V Max Sensitivity 100mV Low Pass Filter Variable, 40Hz - 250Hz, 12dB/Oct (Sub) High Pass Filter Variable, 40Hz - 250Hz, 12dB/Oct (F/R) Subsonic Filter Fixed, 27Hz, 12dB Bass Boost 18dB @ 45Hz Topology Full Range Class D Depth 8.9" (226.7mm) Length 14.2" (359.9mm) Height 2.03" (51.5mm)