AK-7800 Smart Audio Management Power Amplifier
Teaching, Conference PA Series
- Product Description
- Detailed parameters
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- Commodity name: AK-7800 Smart Audio Management Power Amplifier
- Commodity ID: 1108417006584614912
● This machine adopts high-speed DSP floating-point digital signal processing and noise elimination, acoustic feedback suppression and other algorithms; ● It can achieve a wide range of sound pickup, and at the same time can effectively prevent the howling phenomenon caused by external noise interference and sound feedback, perfectly presenting high-definition pickup effect, which is extremely suitable for classrooms, venues, etc;
●This machine adopts high speedDSP floating-point digital signal processing and noise cancellation, acoustic feedback suppression and other algorithms;
●It can achieve a wide range of sound pickup, and at the same time can effectively prevent the howling phenomenon caused by external noise interference and sound feedback, and perfectly present high-definition sound pickup effect, which is extremely suitable for classrooms, venues, etc;
●The machine is set to automatically detect the microphone gain and select the microphone to turn on, so as to realize the intelligent selection of one of the four microphones;
●5-Way Microphone Balance/Unbalanced input,1-4Road microphone4Select1Function independent microphone volume adjustment;
●Unique6V and48VPower supply switch;
●Unique wireless microphone priority input socket (with switch), when the wireless microphone is working, other microphones automatically shut down, more effective suppression of howling;
●The microphone uses a composite socket input to provide6V、48VThe power supply is convenient to connect the microphone;
●This machine is equipped with five microphone inputs, three sets of audio inputs, a set of pre-line outputs, a set of recording outputs andA,B two sets of power output;
●System recording outputRAC interface, volume adjustment output level, microphone signal professional mixed high and low tone adjustment, professional digital feedback suppression module, straight through/The feedback mode can be converted, the panel one-key control feedback suppression and microphone level indication, independent microphone level indicator, monitoring output level at a glance;
●All Chinese operation interface, easy to understand.
Key words:- 广州声曼电子
- 专业音响
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1. feedback suppression parameters
frequency response
125Hz-15KHz
distortion degree
＜0.1% 1KHz
Sample Rate
32KHz
Letternoise ratio
＞90dB
signal delay
＜11ms
CMRR
＞25Db(50Hz-20KHz
2.Ambient noise cancellation parameters
frequency response
10Hz-30KHz
distortion degree
0.2% 1KHz
Noise
＜-90dBu
threshold range
-80～-20dBu B
dynamic range
114Db
Noise Gate
＜100us
frequency response
20Hz-20KHz
distortion degree
＜0.05% 1KHz
Input impedance
Microphone: 47KΩ Line: 10KΩ Music: 10KΩ Far End: 10KΩ
output impedance
Recording: 1KΩ Line: 10KΩ
signal-to-noise ratio
＞100dB
Rated output power
2*150W/8Ω
Power consumption
≤ 350W
Power supply mode
AC220V/50H, toroidal transformer power supply
Dimensions (DxWxH)
340x480x90（mm）
Sounord Professional Audio
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