Guangzhou Langyuan Audio Equipment Co.,Ltd

12 years experience, making your world sound the better

specialized in Line Array, professional speaker, monitor speaker, amplifier

About Us
Factory Tour
Quality Control
Contact Us
Request A Quote
Home ProductsPowered Audio Amplifier

400 Watts Switching Power Amplifier

I'm Online Chat Now

400 Watts Switching Power Amplifier

China 400 Watts Switching Power Amplifier supplier

Large Image :  400 Watts Switching Power Amplifier

Product Details:

Place of Origin: China
Brand Name: HLA
Certification: CE,ROHS
Model Number: SA400

Payment & Shipping Terms:

Minimum Order Quantity: 1 Piece
Packaging Details: Normal Packing Carton or Flight Case
Delivery Time: 7 days after your payment
Payment Terms: T/T, Western Union,, L/C
Supply Ability: 600 sets /month
Contact Now
Detailed Product Description
8Ω Stereo Output:: 2x400W 4Ω Stereo Output:: 2x640W
SDR: ≥95dB THD: <0.1%
Input Power: AC220-240V,50/60Hz Voltage Conversion: 30V/uS
High Light:

power audio amplifier


stereo audio amplifier

Professional Switching Power Amplifiers Music Instruments For Stage And Light​

Quick Detail:

SA Series are new generation high quality, high efficiency SMPS power amplifiers. Standard 2U height and 21kg light weight make it ideal for touring performance and fixed installations. With full protect functions, it adopts a full range of onsemi (formerly Motorola) power output transistors. PA-Series supply low distortion, great signal-to-noise ratio, low consumption, high performance, compact size, light weight, delay circuit for soft start and low in rush current advance the appliance to operate efficiently.


Are there some analogue power amplifiers with professional circuit design, good interior structure, excellent sound quality, and extraordinary stability? Yes, SA-330, SA-400, SA-500 SA-650 ,SA-800, SA-1250 (2x330W,400W,500W,650W,800W,1250 @8ohm) are the best option we can offer you.
They are one series NEVER-STOP analogue power amplifiers.

  • Gymnasium, Large Performance, Disco
  • Pub, Nightclub, Club, KTV room etc.


Model SA-400
Stereo Output: 2x400W
4Ω Stereo Output: 2x640W
8Ω Bridge: 1280W
Frequency Response: 20Hz-20KHz
THD+N: <0.03%
S/N Ratio: 95dB
Input Impedance: 20KΩ/bal 10KΩ/unbal
Item Dimensions(mm): 580x580x160 (2U)
Net Weight(kgs): 21

Competitive Advantage:
good sound quality, high stability, fixed with good electronic components





Guangzhou Langyuan Audio Co., Ltd is specialized in producing professional audio equipment with an own brand “HLA ” since 2005. Our 5,000 square meters plant has R&D, sales and demonstration departments. Fully equipped demonstration facilities are available with knowledgeable staffs.
Langyuan Audio can provide you a wide range of professional sound gear like: A speaker, indoor and outdoor line array speaker, subwoofer, floor monitor, Power amplifier and speaker management system. From the smallest conference room to the largest stadium.
HLA is our brand for global market, show our great responsibility to the customers in any possible as promise. The soul of HLA has to be our attempt to improve our products quality against the best in the world.
Our goal is to provide the best equipment with the best services. We have not deviated from this position since we began and will do it consistently.



To get the best goods with least money is not only customers favorites,but also CVR's target.

1. Quality Wood Enlosure: Birch Plywood and Plywood.

2. Detailed cutting and Design: Proffessional design for driver,frequency divider,tweeter, horn and cabinet.

3. Environment protection spray-paint: nontoxic water paint which is environment protected and werable.

4. CE&RoHS certificate: for all products

5. Strictly test before delivery: All products are under the examination of our engineer team before dilivery.

6. Strong packing: Quality carton boxs with firm belt and flight cases are required.

7. Fast lead time: Sample order in stock and normally within two weeks for bulk production.

8. Good After-sale service: All products have one year warranty and lifetime follow-up service.Parts will be free from maintenance within warranty period. Any inquiries will be replied within 24 hours.




Contact Details
Guangzhou langyuan audio equipment shawan branch

Contact Person: Catherine

Tel: +8618922136480

Send your inquiry directly to us (0 / 3000)