Further information for Grothe D 9003-V - D9003 amplifier board 5W D9003/D9016/D9017 74823
Amplifier board D9003-V This amplifier board increases the output power of D9003, D9016 and D9017 from 1 watt to 5 watts. This increase results in a higher volume, which you can use to your advantage in higher environments