TDH400

400W professional amplifier

•Aluminum panel, novel appearance design, standard 2U chassis height, suitable for cabinet installation. High-strength structural chassis, symmetrical structure with the rack, fast assembly; •Adopts high-efficiency large-scale transformer and large-capacity capacitor filter power supply to achieve low distortion when the power amplifier outputs at full load, stronger low-frequency control, and clearer sound; •Precise gain control on the front panel, with working status signal lights for power, signal, protection and clipping; •Fully automatic protection circuit design for each channel to protect DC, overheating, overload, and amplitude limiting; •Automatic variable frequency cooling fan, the greater the power used, the higher the speed, high reliability operation and use; •Adopt balanced XLR input and output interface and professional SPEAKON output interface; •The rear toggle switch is used to select stereo or bridged or mono operating modes; •The powerful power output of the machine allows the product to be used in more fields. 8Ω output power 2x400W 4Ω output power 2x600W 8Ω bridge 800W

Frequency response: 20Hz～20kHz
Total harmonic distortion: <0.05%
Signal-to-noise ratio: >98dB
Damping coefficient: >300dB
Input sensitivity: 0.775V, 1.0V, 1.4V
Input impedance: 20kΩ
Output impedance: 4-16kΩ
Channel crosstalk: <-70dB
Panel control: power switch/indicator light; LED: protection (red), clipping (orange), signal (green), volume controller
Rear panel control: output mode switching: stereo mode, parallel mode, bridge mode; sensitivity switching: 0.775V, 1.0V, 1.4V
Audio interface: XLR balanced input and output
Speaker interface: red and black binding posts; Speakon
Cooling: Cooling fan, airflow from front panel to back panel, infinite wind speed, depending on temperature
Power supply requirements: AC220V～50Hz
Product size: 483mm (19 inches) × 90mm (2U) × 443mm