Alibaba hot selling DSP power amplifier 500w HM500 from China factory  

Features:

1. 2 inches color LCD screen displays Chinese/English menu, dynamic frequency indicator.

2. Adoption of small loop negative feedback technique eliminates transient intermodulation distortion;

3. Design of common emitter common base circuit makes the frequency band of amplifier wider and more balanced, low-frequency thick and elastic, medium frequency smooth and high frequency delicate and full of sense of the level;

4. Adopt A class work mode for electric current level drive, AB class work mode for output level reduces switch distortion and crossover distortion;

5. Adoption of electronic acceleration technology reduces switch distortion of amplifier tube to a minimum;

6. Adoption of pioneering dynamic following technology prevents the modulation of audio signals from interelectrode capacitance of transistors, and avoids power internal resistance caused by using second-level power supply for high power amplifier;

7. Using A-level iron core and oxygen-free copper paint covered wire for power transformer ensures more energy and lower operating temperature;

8. Using audio specific capacitor for power smoothing capacitor ensures less distortion and lower internal resistance, and makes charge&discharge current faster and more powerful.

9. Special boot lock function make it easy to manage and control the device.

 Technical parameters:

FAQ:

Q1.Why us?

A.We specialize in R&D and manufacture of high-performance professional DSP audio products,such as professional audio processors,karaoke processors,professional amplifiers,karaoke amplifiers,power supply sequencer,power amplifier modules,mixer,equalizer,feedback exterminator and so on,with highly quality and competitive prices.

Q2.What’s your payment term?

A. We accept T/T,30% deposit at first and 70% balance needs to be paid before shipping.

Q3. How long is the delivery time?

A. Usually 25-35days for production. 1 day for sample delivery if it’s available in stock.

Q4. What’s your standard package?

A. Bubble wrap packaging inside and carton packaging outside.

Q5. How long is your product warranty?

A. 2years.

Q6. Could you do OEM/ODM for customers?

A. Yes,from the product design to packaging,our engineers can design exactly as your requirements.Any kind of logo printing or design is available ,If your order quantity is good .

Q7. What kind of certificates do you have ?

A. Our company has been awarded CE and ROHS,3C, CQC,ISO.