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QS-410 and QS-420 Professional Power Amplifier

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QS-410 and QS-420 Professional Power Amplifier
Applications:

Features:

With a high-end aluminum alloy (black) panel and advanced dust-proof structure, users can easily clean the device and ensure that the internal components are not affected by dust, thus extending its service life. This equipment features high efficiency, large power output, small size, and is lighter in weight than similar products. It also has a complete protection circuit including overload protection, overheat protection, short-circuit protection, and DC protection.

The automatic limiting function detects the output signal and automatically limits the input signal in the event of system overload to ensure that the audio is not damaged. The output without contact effectively reduces the internal resistance and eliminates the risk of relay contact damage. The electrical insulation control effectively reduces the internal resistance of the power supply, and the power tube is in direct contact with the heatsink to further reduce the thermal resistance, thus quickly transferring heat to the heatsink.

Adopting Class TD circuitry, the overall conversion efficiency of the amplifier is similar to that of a Class D amplifier, but the output is Class AB, resulting in a Class AB sound. The use of SMT technology ensures consistent product quality and reduces the possibility of virtual soldering. Soft start-up and surge protection effectively protect the equipment itself while reducing its impact on the power grid. The signals between channels can be bridged or connected in parallel.

Specifications:

Output Gain: 32dB/40dB
Input Impedance: Balanced 20kΩ, Unbalanced 10kΩ
Frequency Response: 20Hz-20kHz+/-1dB
Damping Factor: >300
Signal-to-Noise Ratio: >90dB A-weighted
Distortion (1kHz): <0.05%
Protection Circuit: Short Circuit Protection/DC Output Protection/Overheat Protection/Overcurrent Protection/Input Overload Protection/Output Overload Protection/Soft Start-Up/Recoverable Overload Open Circuit Protection
Model: QS-410, QS-420
Stereo 1kHz 0.1% 8Ω: 900W4, 1300W4
Stereo 1kHz 0.1% 4Ω: 1600W4, 2400W4
Power Requirement: AC220V±10%50-60Hz

Output Power:

Model QS-410 QS-420
Stereo 1kHz 0.1% 8Ω 900W4 1300W4
Stereo 1kHz 0.1% 4Ω 1600W4 2400W4

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