MK6920 amplifier integrates balancing function and pre-amplifier and post amplifier. The series is equipped with three sets of stereo sound source input ports, four microphone input ports, a stereo line output ports, a recording output port and two groups of amplifier output terminals. 3-way stereo sound source channels' volume can be controlled independently cooperating with function of "choose 1 out of 4". Four mics can be controlled independently. Volumes of amplifier output are controlled together. Equipped with seven equal sections, output volume is adjustable.
This product is more user-friendly designed. It adopts innovative technology and produces powerful, beautiful sound. Its functional operation is clear at a glance. At the same time, the product is designed for conference, sound volume is adjustable. Besides, it has multiple protection and enough function, stable and suitable for conference, background music, Karaoke, audio-visual and family engineering support.
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Model |
MK6906 |
MK6920 |
MK6925 |
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Microphone input sensitivity |
5 ± 0.5mV |
4.5±0.5mV |
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Line input sensitivity |
250 ± 50mV |
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MP3 input -10dB / 1KHZ sine wave |
Output 23V |
Output 32V |
Output 45V |
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Line output voltage |
950 ± 150mV |
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Total harmonic distortion |
≤0.5 (1KHz, normal working conditions) |
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Line frequency response |
20-20k Hz (± 3dB) |
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Microphone frequency response |
80-20k Hz (± 3 dB) |
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Microphone 7 balanced |
64HZ: ± 12dB |
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160HZ: ± 12dB |
|||
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400HZ: ± 12dB |
|||
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1KHZ: ± 12dB |
|||
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2.5KHZ: ± 12dB |
|||
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6.4KHZ: ± 12dB |
|||
|
15KHZ: ± 12dB |
|||
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Line input and MP3 tone adjustment range bass |
100Hz: ± 12dB |
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Treble |
10KHz: ± 12dB |
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Signal to noise ratio (8Ω output) |
≥75dB |
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Working power supply |
AC220/ 50Hz |
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Phantom voltage |
+ 48V |
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Rated power consumption |
8Ω 60W |
8Ω 120W |
8Ω250W |
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Protective function |
Overload, over temperature, short circuit |
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Dimension (L × W × H) |
483x 310x 88 mm |
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Package dimension (L × W × H) |
520mm×395mm×170mm |
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Gross weight |
9.5kg |
10.15kg |
7.6kg |
|
Net weight |
7.5kg |
8.15kg |
5.6kg |
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