Standard 19-inch rack design with a black anodized brushed aluminum panel and laser-cut chassis, featuring a professional, sophisticated, and high-end appearance; 2. Four-channel signal input (two microphone inputs: MIC1 and MIC2; two line auxiliary inputs: AUX1 and AUX2);
A 1-channel audio signal auxiliary output interface, which can be extended with an external power amplifier; it features a standard 3.5mm jack interface for easy wiring.
Independent volume adjustment for each input channel;
High and low volume adjustment;
Overall volume adjustment;
Sections 7 and 5: LED level indicators that can display output signal strength, distortion, protection, and over-temperature status;
8、★Third-level priority circuit: MIC1 has the highest priority level, AUX1 has the second priority level, and MIC2 and AUX2 have the third priority level;
9、★AUX1 features a gain adjustment knob, allowing easy connection to audio sources with varying amplitudes (30mV-1200mV); 10、 ★ AUX1 has a priority selection switch; when ON, AUX1 has priority functionality. OFF indicates that AUX1 has no priority function;
Excellent noise control, comparable to that of professional-grade amplifiers;
★ It adopts the most advanced transformer design in the industry, cutting off the amplifier output when the internal temperature of the transformer exceeds 105 degrees, providing better overload protection;
Uses imported power transistors, delivering strong output power; Wide frequency band, low noise, and high fidelity, perfectly reproducing human voice and music;
14、★Comprehensive protection circuit: DC protection – if DC voltage appears at the power amplifier output terminal, it will immediately cut off the output to protect the speaker; Short-circuit protection: Immediately cuts off the output in case of a load short circuit, and automatically recovers once the fault is resolved;Thermal protection: When the internal temperature of the power amplifier exceeds 70°C, power limitation is activated;If the temperature exceeds 85°C, cut off the output;
High-frequency octave low-cut circuit, employing a low-cut technology with tone compensation to remove potentially hazardous sub-sonic frequency components without compromising audio quality, ensuring safe operation of the voltage boosting system;
16、★Peak negative feedback protection: When signal distortion, impulses, or severe line voltage overvoltage occur, it effectively protects the power amplifier;
17、★Independent soft-start protection circuit to prevent high current during startup from causing damage to the equipment;
18、★The professional compression and limiting circuit can detect clipping of output signals caused by various conditions such as reduced power supply voltage, excessive load, overly large input signals, and high amplifier temperature rise, and automatically corrects them to prevent output signal distortion, resulting in audio distortion, damage to the amplifier, and speakers;
19、★The tunnel-type air duct features forced cooling from front to back and includes an intelligent management function for fan speed.At room temperature, it operates at low speed. When the internal temperature of the power amplifier exceeds 70°C, the fan increases its speed, and power limitation is activated. At 85°C, the fan runs at full speed, the power amplifier output is cut off, and the temperature indicator light illuminates to signal an abnormal alarm.
Supports one of two options: constant voltage (70V/100V) or constant impedance (4-16Ω) output, enabling this unit to be used both in broadcast systems and with professional-grade speakers;
Professional modular circuit design ensures reliable consistency of the product;
High-strength and thickened body ensures that the product will not deform due to harsh transportation conditions;
