Guangzhou CVR Pro-Audio Co., Ltd  

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Line Array,Subwoofer,PA Speaker,Power Amp,Processor,Microphones.

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4 CH 800 Watt Traditional Digital Audio Amplifier Class H Subwoofer 8 ohm

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4 CH 800 Watt Traditional Digital Audio Amplifier Class H Subwoofer 8 ohm

4 CH 800 Watt Traditional Digital Audio Amplifier Class H Subwoofer 8 ohm supplier 4 CH 800 Watt Traditional Digital Audio Amplifier Class H Subwoofer 8 ohm supplier

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Product Details:

Place of Origin: CHINA
Brand Name: CVR
Certification: CE
Model Number: KM-480

Payment & Shipping Terms:

Minimum Order Quantity: 1 PC
Price: 100-10000 USD
Packaging Details: CARTON OR AMP RACK
Delivery Time: 7 WORKING DAYS
Payment Terms: Western Union, T/T
Supply Ability: 5000 PIECES EACH MONTH
Detailed Product Description
CHANNEL: 4-CHANNEL POWER: 800w X 4 (8 Ohm)

4 CH 800 Watt Traditional Digital Audio Amplifier Class H Subwoofer 8 ohm





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-480
 8Ω Stereo Power 800W×4
 4Ω Stereo Power 1200W×4
 8Ω Bridged Mono 2400W+2400W
Input Impedance >20K/>10K
Frequency response 20Hz-20KHz
THD+N(Rated Power,4Ω/KHz)% 0.05%
Input Sensitivity 0.775V/1.0V/1.4V
Input Connectors XLR
Output Connectors Speakon&touch-proof binding posts
Power Requirement 220V-240V,50-60Hz
conformation  steel and aluminum chassis
Airframe Dimension  88×483×430mm
Net Weight 32kg


4 CH 800 Watt Traditional Digital Audio Amplifier Class H Subwoofer 8 ohm


4 CH 800 Watt Traditional Digital Audio Amplifier Class H Subwoofer 8 ohm





 Guangzhou CVR Pro Audio Co., Ltd is specialized in researching, developing and manufacturing high quality pro audio equipment.Boasting talented professional employees and leading technology, we manufacture and supply a compreh ensive range of professional equipment including line array system, proloudspeaker, subwoofer, minitor speaker and power amplifier. CVR pro audio products have been far sales to over 100 countries abroad,enjoying high reputations and popularitys.Our own modern industrial factory occupies over 5000 square meters, equiped with advanced processing lines and sound online testing systems. R&D department, production, QA, engineering, overseas sales department, domestic sales department and aftersales service are all running well under strict management constructive guidelines.




Brand Promises:


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

  • Quality Wood Enlosure: Birch Plywood and Plywood.
  • Detailed cutting and Design: Proffessional design for driver,frequency divider,tweeter, horn and cabinet.
  • Environment protection spray-paint: nontoxic water paint which is environment protected and werable.
  • CE&RoHS certificate: for all products
  • Strictly test before delivery: All products are under the examination of our engineer team before dilivery.
  • Strong packing: Quality carton boxs with firm belt and flight cases are required.  
  • Fast lead time: Sample order in stock and normally within two weeks for bulk production.
  • 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.

Guangzhou CVR Pro-Audio Co., Ltd

Contact Person: Mr. William Jiang



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