Product Details:

Volume control method of relay + resistance array.There is no impact on sound quality and hearing caused by the contact resistance and sliding noise of the potentiometer and the imbalance of the two connections, and there is no sound staining caused by the digital potentiometer. This relay array volume control board has an immediate effect on the sound upgrade and sound quality improvement.Features: Pure resistance circuit, fixed input resistance, without any popping sound. Encoder + MCU control data, no sound level jump.

Features:

Resistance: 10K, 50K, 100K (optional)Pure resistance circuit, precise volume adjustment with more than a thousand steps, you can also set the adjustment level by yourself.The original Dani high precision audio resistors are used to ensure the sound quality.You can set the linearity of the multi-stage adjustment volume by yourself.Adopt Japanese NEC silver contact signal relay to ensure good contact.With remote control, all functions can be controlled.A variety of practical functions, users can set by themselves.The sound channels are all made of immersion gold circuit boards and are soldered with environmentally friendly lead-free solder.The control circuit is a spray tin circuit board, because the sound does not pass through this board.Microprocessor control.The display brightness of the display board is adjustable (don't worry about the digital tube being too dazzling at night).Increase the output delay after power-on, and adjust the time.

Function description:

Encoder/remote control volume control, audio source selection.One key to mute.One-key volume return (return to the default volume you set).The default volume level can be set (the value returned by power-on or one-key).You can set the volume limit protection (that is, the adjustment is not higher than the value you set).Four-way audio input selection, two-way audio output selection and simultaneous output. (Automatically remember after selection)Other equipment functions with remote control switch, such as pre-amplifier, power amplifier, etc.Volume progressive function (there are multiple mode selections in the power-on volume state).Volume, input selection, and output selection all have automatic memory functions.The balance volume control system is realized by combining two volume relay boards and two sound source switching boards, that is, one board is used for balance control of one channel.