Two-channel, with input buffer, full-wave rectification, no compression, there is a first-stage amplification part on the board, wide application range, high sensitivity.
With acceleration and damping control circuit, it has a strong ability to catch small signals, the pointer swings lightly and smoothly, the start is rapid and fierce, and the swing back is slow and gentle.
Input dynamic range up to 60dB So after adjusting the parameters on the board, it can also be used to drive the power meter of 100W 8 ohm power amplifier.
Note
The driver board is designed to drive a standard professional VU meter head with an internal resistance of 650 ohms and a sensitivity of 500 UA. Other specifications of the VU meter head may not be applicable, and further adjustments are required to work properly.
PCB size: 11.5*7.5 cm
Fixing hole size: 10*6.5cm
Drive board power supply: plus or minus 12V-15VDC.
Package Included: