Balanced Remote Volume Control Board Passive Preamp Board Select Audio Source Encoder Spacing 168mm

Balanced Remote Volume Control Board Passive Preamp Board Select Audio Source Encoder Spacing 168mm

Description:
The volume control mode of relay + resistance array is the volume control mode of HiFi audio system. This product is one of our self-developed HiFi audio products. Without the contact resistance and sliding noise of potentiometer and effects on sound quality and hearing caused by two-link imbalance, there is no sound dyeing caused by the digital potentiometer. This relay array volume control panel has a good effect on sound quality improvement.

Advantages:
- Volume control system board boasts digital display tubes. Spacing between two decoders is 168MM.
- Pure resistance loop, fixed input resistance, without any detonation, encoder +MCU control data, no sound pulsation.

Features:
1. Pure resistance loop, more than a thousand step volume precision adjustment, you can also set adjustment series.
2. Original high-precision audio resistors are adopted to ensure sound quality.
3. The linearity of multi-stage volume adjustment can be set by oneself.
4. Japanese silver contact signal relay is adopted to ensure good contact.
5. With remote control, you can control all functions. Encoder control and display panel are customized to fit chassis commonly seen in the market, providing you with more choices.
6. A variety of practical functions, users can set by themselves.
7. Sound channels are made from gold-plated circuit boards and environment-friendly lead-free soldering.
8. Spray tin circuit board as control circuit board, because sound does not pass through the board.
9. The function of microprocessor control can be modified according to customer requirements. Contact customer service for details.
10. Display brightness of new display board can be adjusted (Don't worry about the digital tube blinking at night).
11. The new version is added with output delay after startup, and delay time can be adjusted.

Function Introduction:
1. Encoder/remote control volume control and audio source selection.
2. One-button mute.
3. One-key volume return (return to the default volume you set).
4. Default volume can be set (the value returned by power on or one key).
5. Volume limit protection can be set (that is, the setting is not higher than the value you set).
6. Four input channels and two output channels can be selected and simultaneously output. (Automatic memory after selection)
7. With a remote controller to turn on/off other devices, including preamp, amplifiers.
8. Volume incrementing function (there are several modes to choose from for boot volume status).
9. Volume, input selection, output selection with automatic memory function.
10. Balance volume control system can be realized by the combination of two volume relay boards and two sound source switching boards, that is, each board is used for the balance control of a sound channel.

Attention:
Power supply board supplies power to control system and does not participate in the sound source loop, so it will not have any effect on sound quality. To ensure the stability of power supply, when different configurations are adopted, we will choose a power source with sufficient power according to the configuration, which may not be exactly the same as the pictures show. Please contact us if you need 110V ones. We have customized 110V power supply transformer.

Package Included:
- 1 x Set of Volume Control Board

Note: The remote controller is powered by button battery which is not included in the package. Please purchase separately.