1. The semiconductor used is a world-famous brand
2. The top silicon steel sheet and pure copper wire high-power ring transformer are fully used to filter and store energy in high ripple large pond;
3. AI, SMD, wave and reflow soldering, ICT and other automated processes;
4. Protection functions: voltage limit, DC, short circuit, switch, zero impact, switch software start, VHF high frequency protection.

Model QSA300 QSA400 QSA600 QSA800

8Ω Output power 250W×2 350W×2 600W×2 800W×2

4Ω Output power 350W×2 500W×2 1000W×2 1500W×2

2Ω Output power 500W×2 700W×2 1200W×2 1600W×2

8Ω Bridge Output power 650W 1000W 1800W 2800W

Frequence response 20Hz-20KHz(@8Ω±0.5dB)

THD ＜0.05％

Switching Rate 20V/µs

Damping factor ＞300(@100Hz)

Signal to noise ration ＞95dB

Input sensitivity 0.775Vrms/1.0Vrms/1.4Vrms

Voltage  gain 36dB 37.8dB 38.6dB 40.2dB

Impedance Balanced 20KΩ/unbalanced 10KΩ

Power voltage ～220V±10％/50Hz (Other on request)

Gross weight 15.02Kg 15.58Kg 21.54Kg 23.02Kg

Outer packing dimension L560×H138×D420mm L560×H138×D542mm