ITEM NAME:AD828 HIFI Stereo Preamp amplifier board volume Tone Control Pre-amp BoardS Ew Technical parameter: Working Voltage: AC 3-16V or DC5-24V Product size: 100MM* 45MM operational amplifier Chip: AD828 4-way: treble, Midrange, bass, total volume Packaging Including: 1 x AD828 Tone Board.Operational amplifier Chip: AD828. 1 x AD828 Tone Board. Product size: 100MM 45MM.
