Guangzhou CVR Pro-Audio Co., Ltd |
|
Transformer Professional 4 Channel Power Amplifier Audio Class D Circuit
Specification:
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 |
CVR PRO AUDIO aims to:
Become your most trusted and reliable manufactory
Provide high quality pro sound equipment at realistic prices
Provide outstanding designs together with delicate finished
Provide meticulous and considerate service for clients
See more at: www.cvr-audio.com
ABOUT CVR:
CVR PRO AUDIO is a cutting edge professional audio speaker manufacturer specializing in designing andmanufacturing professional audio systems,including PA speaker,indoor and outdoor line array speaker,subwoofer,floor monitor, power amplifier and speaker management system. We provide these products for indoor and outdoor events, stadiums, churches, performing arts venues, theatres,conference rooms, meeting halls, and any space where audio system are needed.
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.
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
ranges.