末成年娇小性色XXXXX_日韩AV高清无码_老熟女乱子伦_性动态图AV无码专区_青青草大香焦在线综合视频_欧美精品国产综合久久

MK-121B is bass amplifier design for bass speaker. 

1. When using the mixer input the gain amplifier circuit, can be matched with a variety of KTV amplifier.

2. High damping output, enhanced dynamic.

3. Adjustable electronic crossover technology to meet different types of music needs.

4. Temperature control forced cooling system to improve machine stability.

5. Tuner-style input, easy access.

SPECS.

Rated Power: 400W×1(8Ω)

Input Sensitivity: 300-1000mv(Continuously Adjustable) 
THD: ≤0.01% 
S/N Ration: ≥85dB 
Freq. Response: 20-1KHz(±0.5dB) 
Freq. Reaponse Selection: 20-1KHz(Continuously Adjustable) 
Dim(W×H×D): 255×120×480mm 
N.W: 14kg