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.
Model | MK6906 | MK6920 | MK6925 |
Microphone input sensitivity | 5 ± 0.5mV | 4.5±0.5mV | |
Line input sensitivity | 250 ± 50mV | ||
MP3 input -10dB / 1KHZ sine wave | Output 23V | Output 32V | Output 45V |
Line output voltage | 950 ± 150mV | ||
Total harmonic distortion | ≤0.5 (1KHz, normal working conditions) | ||
Line frequency response | 20-20k Hz (± 3dB) | ||
Microphone frequency response | 80-20k Hz (± 3 dB) | ||
Microphone 7 balanced | 64HZ: ± 12dB | ||
160HZ: ± 12dB | |||
400HZ: ± 12dB | |||
1KHZ: ± 12dB | |||
2.5KHZ: ± 12dB | |||
6.4KHZ: ± 12dB | |||
15KHZ: ± 12dB | |||
Line input and MP3 tone adjustment range bass | 100Hz: ± 12dB | ||
Treble | 10KHz: ± 12dB | ||
Signal to noise ratio (8Ω output) | ≥75dB | ||
Working power supply | AC220/ 50Hz | ||
Phantom voltage | + 48V | ||
Rated power consumption | 8Ω 60W | 8Ω 120W | 8Ω250W |
Protective function | Overload, over temperature, short circuit | ||
Dimension (L × W × H) | 483x 310x 88 mm | ||
Package dimension (L × W × H) | 520mm×395mm×170mm | ||
Gross weight | 9.5kg | 10.15kg | 7.6kg |
Net weight | 7.5kg | 8.15kg | 5.6kg |
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