Remote volume control board, full balance design (four pieces of volume control board) using relay (Halcro also use relay on their DA10 pre amp)switching two sets of resistors (R-2R network).
1dB per step, attenuate from 0 db to -80dB, output. 1/4W RA resistors, with four channel relay input select and CPU control display,
dual mono design, left and right channel can be fine adjustment.
Each set include four pieces of 1/4W RA resistor volume relay and input relay board
one piece of display board
two pieces of power regulator board
one remote handset
main pcb size: L 180mmX W 45mm
dsiplay board: L 230mm X W 52mm
|mounting hardware for V-03 and V: