The board be suitable for AD Player/bus TV/Monitor,Use Mstar V39 IC,To replace ... the AV9E19.Optional AV/BNC port.Support AV1/AV2/A The driver board is mainly used in the field of ... 9w*2(80hm) large loudspeaker The board be suitable for AD Player/bus TV/Monitor,Use Mstar V39 IC,To replace ...