Guangdong, China
Number of Employees:
Year of Establishment:
Management System Certification:
ISO 9001
Average Lead Time:
Peak season lead time: within 15 workdays
Off season lead time: within 15 workdays
OEM/ODM Availability:
OEM/ODM Service
Sample Available

Digital Power Amplifier, 4 Channel Power Amplifier, 1u Power Amplifier manufacturer / supplier in China, offering Class D Big Watt Digital Amplifier, PRO Audio Amplifier (B4-2000), T4888 High Output 3-Way Neodymium Line Array Speaker (VT212), 4889 Hot Sale Line Array System Dual 15 Inch Speaker and so on.

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Supplier Homepage Products 1U class D digital amplifier Class D Big Watt Digital Amplifier, PRO Audio Amplifier (B4-2000)
  • Class D Big Watt Digital Amplifier, PRO Audio Amplifier (B4-2000)
  • Class D Big Watt Digital Amplifier, PRO Audio Amplifier (B4-2000)

Class D Big Watt Digital Amplifier, PRO Audio Amplifier (B4-2000)

Get Latest Price
Min. Order / Reference FOB Price
1 Piece US $500-900/ Piece
Port: Huangpu, China
Production Capacity: 3000 PCS/Month
Payment Terms: T/T, Western Union
Type: Professional Amplifier
Usage: KTV System, Stage, Project, Live Concert, Big Area
Used For: Professional
Tube Type: Transistor Amplifier
Function: Post Amplifier, Amplifier Combined, Pre-amplifier
Sound Channel: 4.1

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Basic Info

Model NO.
Output Number
AC 110V
Conductive Mode
4X2000W 1u Digital Power Amplifier
Net Weight
Transport Package
HS Code
Digital amplifier B4 series is big power amplifier, good quality, high stability, less heat, big power output.
It can be used for church, concert, nightclub, stadium, theater, speech, road show etc.

 Four Channel Digital amplifier-Beta 4 series
Product Modeβ4-1200β4-2000
Rated Output Power 8ohm(EIAJ THD=1%,1kHz)4x1200W4x2000W
Rated Output Power 4ohm(EIAJ THD=1%,1kHz)4x21004x3000
Rated Output Power 2ohm(EIAJ THD=1%,1kHz)4x3500/
Maximum bridged output power 16ohm2x24002x4000
Maximum bridged output power 8ohm2x42002x6000
Maximum bridged output power 4ohm2x7000/
Maximum RMS voltage swing(THD=1%,1kHz)97126
voltage gain(dB)39.7 42.0 
Slew Rate(at 1kHz,LPF bypassed)50V/us50V/us
Input Sensitivity
(at rated output power or voltage ,1kHz)
THD+N (10% rated power,typical)0.05%0.05%
IMD-SMPTE  (10% rated power,typical)0.05%0.05%
DIM30  (10% rated power,typical)0.05%0.05%
Crosstalk (1kHz,typical)-75-70
Frequency Response(10% rated power,)0~-20~-2
Input impedance(balanced)20K20K
Damping Factor (100Hz,8Ω)≥500500
Signal to Noise ratio(A weighted,20Hz-20kHz)≥105≥105
Protectionamplifier output DC protection, High frequency protection, Harmonic protection
over temperature protection
overload protection
Power supplyAC:100-240V(50-60Hz)
Net Weight (KG)8.58.5

Class D Big Watt Digital Amplifier, PRO Audio Amplifier (B4-2000)

Class D Big Watt Digital Amplifier, PRO Audio Amplifier (B4-2000)

Lead time: 5 days for sample;25 days for FCL order
Payment term: TT ; Western Union;Cash      Deposit:30%;Balance:70%
Payment term: FOB; EXW; CIF
Good discount:: Order above 100pcs, price will be more favorable.

Excellent after-sales service:
  1. We supply 2-year warranty. 
  2. Supply schematic diagram, specification, catalogue, manual and technology support at any time. 
  3. Supply free parts such as: fuse, transistor, LED, knob, fans for amplifier, and recone kit, horn, diaphragm etc for speaker which may be damaged following delivery.

Within the warranty period, if  the amplifier / speaker is burned, please tell me issue describe, 
then we will give you repair instruction with picture. Just ask your technician replace burned components, then solve problem. But it is only for damaged components, if you want the complete boards for swap, you should pay it and charge shipping cost.

Our advantages
1. Imported USA component, USA technology.

2. Fast production lead time;

3. High quality and competitive price;

4. Professional factory. Workers are working with rich experience and good workmanship.

5. Product sound and performance it can compare with international famous brand.

 1. Q: Are you a factory or trading company? 
   A:We are a factory, specialized in professional audio equipment.

 2. Q: Where is your factory located? How can I visit there? 
   A:Factory located in Haizhu Town , Guangzhou  City, Guangdong Province in China. Takes about 1 hour from airport to our factory.

 3. Q: How does your factory do regarding quality control? 
   A:Quality is priority. Each production process must be checked by QC team and QA before departure.

  4. Q: Can you accept customized orders? OEM or ODM orders?
   A: Yes, we can. Customized orders are always welcomed, as well as OEM and ODM.

 5. Q:Can you make customers' logo on products and customer design? 
   A:Yes, we can, and customer's design are welcome .

 6. Q:.Which country is your main export market?
   A: Our main export regions are USA, Canada, Guatemala, Mexico, Germany, UK, Sweden, Hungary, Vietnam, Indonesia, Malaysia, Kenya, Ghana etc

 7. Q:.What if I can't find the infos I'm looking for, or what if I want to speak to someone directly?
A: Send message now, feedback will be got promptly or latest within 12 hours.
B: Call us: +86 137 1007 3998

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