貴陽專業音響廠家的組成：1、音源（音樂播放設備、拾音設備即話筒）
2、控制設備（模擬調音臺、數字調音臺、數字音頻媒體矩陣、數字管理中心）
3、周邊設備（處理器、均衡器、壓限器、分頻器、激勵器、延時器、效果器、反饋抑制器）
4、還原設備（音箱或揚聲器系統、功率放大器，即功放）。
Model CA850
Power
8Ωstereo power 850W*2
4Ωstereo power 1700W*2
8Ωbridge power 3400W*2
4Ωbridge power 7600W*2
Other specification
Frequency response 20Hz-20KHz
THD+N ＜0.05%
S/N rate ＞80dB
Damping Factor ＞200
Crosstalk ＞60dB
Slew Rate ＞13V/μs
Input Sensitivity 0.77V/1.0V/32dB
Input Impedance(bal/unbal) 20KΩ/10KΩ
Voltage gain(sensitivity:8ohm) 32dB
Output circuitry Class ITM
Cooling Air flow from front to rear
Protection Soft start,DC,short circuit,
over load,clip limit,over heat, progressive volume,VHF
Connector
Input Balance input XLR-F,Balance output XLR-M
Output Two red and black Binding posts,NL4 SPEKON
Function
Front panel Indicator Front panel indicator:signal,clip,
protect,power indicator, bridge,parallel
LCD display screen Front panel lcd:State attenuating
level of volume control, State operating temperature,
State general maintenance method, State malfunction type.
Front panel Power switch,volume control knob
Rear panel Stereo/parallel/bridge switch,
input sensitivity switch, low pass filter,high
pass filter, grouding switch
Dimension/weight
Product dimension(mm) 485*495*90(2U)
Packing dimension(mm) 595*565*170(2U)
G.W(±2.5Kg) 23Kg
Power Removable american 6.5* power
cord Non-removable 20A cable
AC110V/60Hz.±10% AC110V/60Hz.±10%
AC120V/60Hz.±10% AC120V/60Hz.±10%
