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channel audio power amplifier for stage

Channel audio power amplifier for stage

Place of Origin
Guangzhou, China
Bank transfer/TT
Start Port
Nan Sha
Delivery Time
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Product Information of channel audio power amplifier for stage
Application Scope
stereo power amplifier developed and produced by is widely used. The following are several application scenes presented for you. has many years of industrial experience and great production capability. We are able to provide customers with quality and efficient one-stop solutions according to different needs of customers.
Company Advantages
1. Such materials as live power amplifier will help provide long service life of audio power amplifier .
2. The product is resistant to corrosion. It has the ability to resist the impact of chemical acids, strong cleaning fluids or hydrochloric compounds.
3. This product is recycled and degradable, which means that consumers will no longer increase the amount of textile waste.
Product Display

channel audio power amplifier for stage-1

channel audio power amplifier for stage-2

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ES series power amplifier adopts advanced class H final output power amplifier circuit, combined with toroidal transformer power supply, it is a safe and stable, wide frequency response, low distortion, high fidelity high-end professional pure final stage power amplifier, suitable for sound quality and A place where sound reproduction is required to be high.

Product Parameter

Stereo Power8Ω 650W*2; 4Ω 1000W*2; 2Ω 1500W*2
Bridge Mono Power8Ω 2000W 4Ω 3000W
Signal to Noise≥115dB
Slew Rate90V/uS
Damping Factor≥280
Frequency Response20Hz-20KHz, ±0.5dB
Total Harmonic Distortion (THD+N)≤0.5%, 1KHz, 1/3 Rrte Power, 8Ω
Transient Intermodulation Distortion (IMD)≤0.1%, 1KHz, 1/3 Rrte Power, 8Ω
Cross Talk≥78dB
Input Sensitivity1V/0dB, BALANCE
Input Impedance10KΩ, BALANCE/20KΩ, UNBALANCE
Net Weight21kg
Gross Weight22.5kg
Install Size483W*378D*88H
ES Series Power Is465W/650W/850W/1050W/1350W/1500W/1800W


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Packing & Shipping

We support both OEM & ODM packaging. Our normally delivery method are by the sea, by air, by international express (DHL, UPS, TNT, FedEx)

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Company Features
1. In the past years, Guangzhou KAIXU Audio Equipment Co., Ltd has developed from a small manufacturer of live power amplifier to a global and diversified provider in the industry.
2. Guangzhou KAIXU Audio Equipment Co., Ltd has a strong technical force, excellent processing and manufacturing capabilities.
3. In view of the growing depletion of vital resources and the rising burdens on our ecosystem, we constantly seek new solutions to minimize the ecological impact of our products and processes during manufacture. To fulfill our social responsibility, we always adhere to the principle of fair trade. We invariably refuse any vicious market competition, such as biding up the price or monopolizing.




1 Power supply design
Each equipment includes independent logic high rate of power supply,which can control electrical circuit to adjust power output and voltage from time to time, and to respond the request of signal and load,so it can  get the best power match under the wide range of load,so to ensure the power amplifier will not be overheating.

2 Power output grade
Adopt the balance output circuit,the same as fully symmetrical Bridge Road:compared with the normal single end of land output circuit,the same work voltage can generate the output power in 4 times,that is to say,in order to get the same output power,the work power voltage of power amplifier is much lower thannormal OCL model.The output power tube is with wide safety work area under the condition of low voltage,so it is with higher power and reliability  compared with normal OCL output  model. Most importantly, The distortion of it is much Lower and can  output better tone quality.

3 Sign Voltage Range
There is a limited voltage device within each input channel.By checking the output sign and controlling the input sign,so the power amplifier output will not be at the state of clipping in long time,and can protect the speaker.It can automatically control the input sign when the power amplifier is overheat,so can reduce the heat and keep safety.

4 Perfect protection function
Power amplifier provides various protecting function, such as .direct current protection,internal stoppage protection,input overload protection,filter of radio frequency distraction,output short circuit protection,mismatching load and high frequency overload protection, radiator and over temperature protection for radiator and transformer,over electricity protection.And the over temperature protection for output electricity is achieved by gradually lower the output signal.Only when the temperature keeps rising to the extremity,can it cut off the output electricity supply of this channel,so avoid the stop of play.

5 Heat dissipation system
There is an independent heat dissipation system for each channel,two groups of nonpolar speed adjusted Fan.The sealed air go through the radiator to strengthen the effect of heat dissipation,and at the same time,avoid the the dust and smog of stage to pollute the circuit board to ensure the equipment is in good working condition,and the temperature can get balance in some


Model KM-2150
 8Ω Stereo Power2×1500W
 4Ω Stereo Power2×2250W
 8Ω Bridged Mono4500W
Input Impedance>20K/>10K
Frequency response20Hz-20KHz
THD+N(Rated Power,4Ω/KHz)%0.05%
Signal Noise Ration(dB)-105dB
Degree separation-60dB
Input ConnectorsXLR
Output ConnectorsSpeakon&touch-proof binding posts
Power Requirement220V-240V,50-60Hz
conformation Steel and aluminum chassis
Airframe Dimension 88×483×430mm
Net Weight40kg















Product Description

-Stereo power 8Ω 1100W
-1KHz0.1%THD 4Ω 2200W
-2Ω 4400W
-Bridge mono Power 8Ω 3200W
-1KHz0.1%THD 4Ω 4500W
-Signal to noise 105dB
-Slew Rate 80V/μS
-Damping Factor 650:1
Frequency response +/-0.1dB,20Hz+20kHz
-THD ≤0.01%Rated Power@8Ω1kHz
-IMD ≤0.01%Rated Power@8Ω
-Input sensitivity 0.775V,1.0V.1.55V
-Input impedance 10K/20K ohurs, unbalanced or balances
-Imput CMRR ≤-75dB
-Cross talk ≤-70dB
-LEP indicator Signal,Protect,Dctive,Clip/Limiting
-Main power supply FUSE:T20A
-Supply power 6500W
-Net Weight 36kg
-Dimension(WXDXH) 483×480×143(mm)

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