Gold Member Since 2016
Audited Supplier
Guangzhou Dolsi Audio Equipment Co., Ltd.

Audio Amplifier, SMPS Power Amplifier, PA Audio manufacturer / supplier in China, offering Black Four Channel Switching Mode Power Supply Power Amplifier, 2 Ohm PRO Audio PA Sound Professional Power Amplifier (KT series), Class Ab 2 Channel Post Professional Power Amplifier (DH4500) and so on.

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Black Four Channel Switching Mode Power Supply Power Amplifier

FOB Price: US $1-340 / Piece
Min. Order: 50 Pieces
Min. Order FOB Price
50 Pieces US $1-340/ Piece
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Port: Guangzhou, China
Production Capacity: 10000PCS Per Month
Payment Terms: L/C, T/T

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Basic Info
  • Model NO.: Ap Series
  • Usage: KTV System
  • Tube Type: Transistor Amplifier
  • Sound Channel: 4
  • Voltage: AC 220V
  • Conductive Mode: H
  • Height: 88mm ( 2u)
  • Power Output: 600-1000W Per Channel at 8 Ohm
  • Trademark: Dolsi brand or client′s logo
  • Specification: CE, RoHS and CB certification
  • HS Code: 851840009
  • Type: Professional Amplifier
  • Used For: Professional
  • Function: Post Amplifier
  • Output Number: 4
  • Element Number: Push-Pull Amplifier
  • Price: Pls Contact Us to Discuss About Price
  • Channel: 4 Inputs, 4 Output
  • OEM Production: Acceptable
  • Transport Package: 1PC/Polybag/Inner Protection/ Carton
  • Origin: Guangzhou, China
Product Description

Four Channel Switching Mode Power Supply (SMPS) Power Amplifier 
AP series 

Black Four Channel Switching Mode Power Supply Power Amplifier

Black Four Channel Switching Mode Power Supply Power Amplifier


Product nameFour channel SMPS power amplifier AP series
Model No.AP604AP1004
Channel number4 inputs, 4 outputs4 inputs, 4 outputs
Height 88mm ( 2U)88mm ( 2U)
8Ω stereo output power 4x600W4x1000W
4Ω stereo output power 4x1000W4x1800W
Voltage Gain35dB40dB
Frequency Response20Hz-20kHz,+0/-3dB
Total Harmonic Distortion(THD)<0.026%,1kHz
IMD≤0.2% 8Ω,1KHz@1W 
Slew Rate≥30V/μS
Damping Factor(8 ohm),10Hz-400Hz≥600:1
Signal-to-Noise Ratio >100dB
Crosstalk>70dB @ 1KHz
Input sensitivity0.775V/1.0V/1.4V
Input Impedance 
Balanced10K ohm
Non-balanced20K ohm
Protectionsvoltage limit, and protection against direct current,over-heat,over-load,short circuit,on/off delay and Rf interference
Net weight13kg



AP Series adopt full bridge (SMPS) switching mode power supply with high efficiency and stability, third grade CLASS-H audio amplifier circuit. 

. Elegant enclosure design.
. Light weight and easy to install.
.Well-crafted machine with compact structure.
.Strong output power and applicable to a variety of applications.
. Integrated circuit ensuring excellent and independent output for the multi-region sound reinforcement system. 
.Advanced and full protection circuit against short-circuit, broken circuit, direct current, error matching, over-heat and no-load.
 .Well selected components. Strong anti-vibration. 
.Long-lasting performance stability 
.Accurat, and clean sound quality with very low distortion.
.Well tested by AP inspection machine to ensure strong stability.
Our Company:
With over ten years of experience in the audio field, Dolsi Audio is a manufacturer focusing in research, development and manufacturing of high quality audio equipment, including professional power amplifier, speaker, and other audio peripheral products. 
Black Four Channel Switching Mode Power Supply Power Amplifier


Product packing: 

Each piece packed in polyfoam protections before packed into a paper carton.  Or packed as per client's request.


Q: Are you a factory or trading company?
A: We are factory established in year 2004,majorly focusing in research,development and production of high quality of audio equipment.
Q:Can I purchase only 1 pieces as sample first?
A:Of curse.We can offer you one sample for your testing first.But you should pay the sample fee and the freight.

Q: How could I receive the goods?
A: For sample order or small quantity of goods, we suggest to deliver through express such as DHL, FedEx, TNT. For urgent order but more goods, we suggest to deliver by air transportation. For large batch order, we suggest to deliver by ocean transportation. No matter which way you choose, our partner, one of the best forwarders in Guangzhou would provide you the best services with best price.Of course,if you have your forwarder,you can cooperate with your forwarder.
Q: Can I make the products with my own logo?
A: Yes, we could provide OEM services to you, make your logo on the products and cartons, we have rich experience in this. Moreover, the quality would be as well as our own CEOPA brand products.
Q: I have my own idea to the products, could you help and produce my own products?
A: Of course, ODM service is available to us. Just tell us your idea and demand, our experienced engineer would customize and develop the device for you. Without your authorization, we would not tell others we are your supplier, and we would not sell your products with our own brand.
Q: I want to work with you, but I`m not familiar with your products, how could I do?
A: We have professional engineers who could design a complete and perfect solution with clear connection diagram for you, with detail introduction to the products, you would find it easy working with us.

Scope Of Application:
Black Four Channel Switching Mode Power Supply Power Amplifier

Any inquiry, pls contact 
Black Four Channel Switching Mode Power Supply Power Amplifier

Ms. Pearl Wei
Tel: 0086 20 36751499 
Mob:0086 13751813264

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