Professional digital QA series amplifier

QA Series Digital amplifer Feature: 1. Light-weight Design Higher output in 1U cabinet ,its weight is no more than 7 kgs. It is one of the best product choice for touring performance and fixed install. 2.High-efficiency Output Circuit: Advanced output D-type circuit,ensuring perfect sound quality condition, and the power and efficiency are higher than other conventional circuit. 3. High-efficitency Switching Power Supply: With PWM (Pulse Width Modulation) technology, Strong power output with advanced digital mode power supply back-up,it is not only provide a long-time and stable output,even if under condition of the deviation of ±20% of the electricity,but also can ensure the beautiful sound. 4.Built-in Precision Limiter Circuit: When the impedance is overload, the circuit can automatically detect when output clip and grant limits in advance,so as to ensure the operating system more secure. 5.Perfect Protection Circuit Design: a) Power Power ON/OFF transient protection, b) Over temperature protection c) COverload protection d) VHF and Short Circuit Limited Protection e) Ultra-high frequency protection f) Limiter protection g) DC protection 6.Unique drive module for FAN temperature control may greatly enhance the radiating performance of the system.Variable speed fan for low noise