Specification

2U power amplifier, dual channel, rated power (8Ω/channel)	2x350W
Rated power (4Ω/channel)	2x700W
Rated bridge power (8Ω)	700W
Frequency response range	20Hz～20kHz
Signal-to-noise ratio	>105dB
Damping factor	>400 (8Ω) (5Hz-1KHz)
Input sensitivity	0.775V/26dB/35dB
Input impedance	20kΩ/balanced, 10kΩ/unbalanced
Distortion	Less than 0.1%
Slew rate	9V/ u
Working voltage	AC 230V, 50/60Hz
Protection mode	power protection, temperature power control, power amplifier output short circuit, overload protection, output DC protection
Dimensions	48089315mm
net weight	11.7kg
gross weight	13.5kg

Q: How does the core technology of a Pro Sound Amplifier achieve high power output stability and low distortion?

A: The professional pure post-stage amplifier (2×350W) ensures stability and high fidelity at high power through the following technologies:

Class-H high-efficiency topology: dynamically adjust the power supply voltage (such as ±50V to ±100V), use low-voltage power supply to reduce energy consumption when the signal is low, and automatically switch to high-voltage power supply for large dynamic signals, with an efficiency of more than 80%, while reducing heat loss (the full-power operating temperature is 35% lower than Class AB).

Fully balanced signal path: differential amplification design is used from input to output to suppress common-mode interference, signal-to-noise ratio ≥115dB, THD+N (total harmonic distortion + noise) ≤0.003% (1kHz, 4Ω), frequency response range 20Hz-20kHz (±0.05dB).

Intelligent protection system: includes overcurrent, overheating, DC output and short-circuit protection, equipped with a dual-speed temperature-controlled fan and aluminum heat sink fins, supporting continuous full-load operation in a 40℃ environment.