SC188A Passive remote control preamp relay volume control amplifier preamp

Product Details:

The RCA version of the relay volume control passive preamp has excellent control accuracy and left-right balance Can effectively replace potentiometers

1:) TAKAMISAWA signal relay has very little signal loss.

2:) The American DALE Smurfs resistor has high balance between left and right channels, small errors, and good sound reproduction.

3:) The machine control part does not participate in audio processing, and the signal input is directly output through the DALE resistor network without loss of sound quality.

4:) The operation part adopts a 360 degree encoding switch, which feels good. The left knob is for input selection, and the right knob is for volume adjustment.

5:) With four input options and two output.

6:) Equipped with a digital display screen function, the number displayed on the left indicates the input switching status, and the three digit number on the right indicates the volume display.

7:) Equipped with remote control adjustment function.The remote control has a learning function and can learn the NEC encoding method.

8:) Output with relay mute function, audio output is delayed before turning on when turned on.

9:) There is a 20 * 10cm space inside the preamp for users to upgrade on their own.

10:) Preamp with relay control switch, convenient for controlling the power supply of other circuits when installing them.

11:) Equipped with a knob backlight rendering function, users can turn it on or off according to their personal preferences.

12:) Equipped with a knob backlight rendering function, users can turn it on or off according to their personal preferences.

13:) The volume of the 4-channel input can be adjusted separately or set as a whole volume control.

14:) Equipped with a power on volume limiting function, after setting the maximum power on volume, the volume value will automatically be adjusted to the volume level before shutting down the next time it is turned on.

15:) Using accurate software algorithms, the switching is very smooth

Specifications:

Input voltage: AC110V/220V

Size: 230*191*50mm

Weight: about 2kg


Operation method:

1 . The knob on the right side of the display screen is for volume adjustment, and the three digit digital tube on the right side of the display screen displays the corresponding volume value.

2 . The left knob is for input switching selection The three digit digital display on the left side of the screen shows the corresponding input status.

3 . Press the volume knob to mute the output, and the volume display will flash continuously as a prompt. Repeat the operation again, rotate the switch left and right, or press the volume button on the remote control to unmute and restore the volume.

4 . Long press the volume knob, release it when the volume number displays L, and then select the volume knob to adjust the display brightness, which can be adjusted to levels 1-5.

5 . Press and hold the SELECT knob, and release it when the knob backlight is on to control the knob backlight.

6 . The above operations can be achieved through the remote control.

7 . Long press the volume knob and release it when the "U -" symbol is displayed to switch between U-4 or U-A. U-4 is the segmented volume control, while U-A is the total volume control.

8 . Long press the volume knob and release it when the word A3.0.0 is displayed. Then rotate the encoding switch left and right to adjust the corresponding amplitude limit number and set the power on volume limit value.

9 . Long press the volume knob and release it when the words 888 and 888 are displayed. At this time, the remote control is in learning mode. Select the volume knob and display IN, VoL+, VoL -, Po respectively. Press the corresponding button of the remote control to be learned. After completing the learning, click the volume knob to store and exit When in school mode, if the knob is turned to display CLEA on the screen, press the volume knob to clear the learned data and exit.

10 . Long press the volume knob and release it when the volume number displays' i r 'to switch between ir1, ir2, and ir3 and disable the remote control function.

Package List:

1 × Preamp

1 × Remote control（To ensure transportation safety, power input cables are not provided by default）