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  • Balanced passive Remote control preamplifier volume controller RCA XLR input preamp 4 road input LED display
  • Balanced passive Remote control preamplifier volume controller RCA XLR input preamp 4 road input LED display
  • Balanced passive Remote control preamplifier volume controller RCA XLR input preamp 4 road input LED display
  • Balanced passive Remote control preamplifier volume controller RCA XLR input preamp 4 road input LED display
  • Balanced passive Remote control preamplifier volume controller RCA XLR input preamp 4 road input LED display
  • Balanced passive Remote control preamplifier volume controller RCA XLR input preamp 4 road input LED display
  • Balanced passive Remote control preamplifier volume controller RCA XLR input preamp 4 road input LED display
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  • Balanced passive Remote control preamplifier volume controller RCA XLR input preamp 4 road input LED display
  • Balanced passive Remote control preamplifier volume controller RCA XLR input preamp 4 road input LED display
  • Balanced passive Remote control preamplifier volume controller RCA XLR input preamp 4 road input LED display
  • Balanced passive Remote control preamplifier volume controller RCA XLR input preamp 4 road input LED display
  • Balanced passive Remote control preamplifier volume controller RCA XLR input preamp 4 road input LED display
  • Balanced passive Remote control preamplifier volume controller RCA XLR input preamp 4 road input LED display
  • Balanced passive Remote control preamplifier volume controller RCA XLR input preamp 4 road input LED display

Balanced passive Remote control preamplifier volume controller RCA XLR input preamp 4 road input LED display

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Balanced passive Remote control preamplifier volume controller RCA XLR input preamp 4 road input LED display
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  • Balanced passive Remote control preamplifier volume controller RCA XLR input preamp 4 road input LED display
  • Balanced passive Remote control preamplifier volume controller RCA XLR input preamp 4 road input LED display
  • Balanced passive Remote control preamplifier volume controller RCA XLR input preamp 4 road input LED display
  • Balanced passive Remote control preamplifier volume controller RCA XLR input preamp 4 road input LED display
  • Balanced passive Remote control preamplifier volume controller RCA XLR input preamp 4 road input LED display
  • Balanced passive Remote control preamplifier volume controller RCA XLR input preamp 4 road input LED display
  • Balanced passive Remote control preamplifier volume controller RCA XLR input preamp 4 road input LED display
  • Description

Balanced passive Remote control preamplifier volume controller RCA XLR input preamp 4 road input LED display


430 standard chassis balance, RCA compatible relay volume control finished machine,

 

Preamplifier, 0-300 level volume adjustment, control accuracy and left-right balance are very good, which can well replace the traditional potentiometer.

 

As always, the relay on the board is not economical. Using Takamizawa signal relay, the signal loss is very small; The resistor used in the audio part is American DALE Smurf resistor, which has high balance between the left and right channels, small error and good sound reproduction.

 

The power supply of the control part of the machine is not involved in audio processing, and the signals are input from each input end of the machine, and then directly output to the output port after changing the volume through the DALE resistor network, without damaging the sound quality.

 

package include:

finished volume control machine *1

remote control *1


 

Introduction to machine:

1.
The 360-degree coded switch is used in the operation part of the
machine, which feels good. The left side of the machine is the input
selection button, and the right side is the volume and function
adjustment button. The volume can be adjusted from 0 to 300 levels. The
right-handed volume increases and the left-handed volume decreases.
 
2.
With four-way input function, the machine has two RCA inputs and two
XLR inputs, which can be selected by rotating or clicking the SELECT
knob on the left side of the panel.
 
3,
with large screen display function, the machine has LED dot matrix
large screen display function, and the display size is large and
intuitive.
 
4.
With remote control function, you can remotely control volume up,
volume down, mute, power supply, machine setting and input switching.
Press the remote control volume key, the volume will change step by
step, and hold down the remote control volume key to adjust the volume
continuously and quickly.
 
5.
Remote control with remote control learning function, which can learn
the NEC coding mode of users (general power amplifier audio remote
controls are NEC coding mode).
 
6.
With boot memory function, you will remember the volume, input and
other working conditions when you shut down last time when you boot up.
 
7. The output has the mute function of relay. When the machine is turned on, the audio output is turned on after a delay.
 
8.
The remaining space inside the machine is enough, and the remaining
space is about 38CM*16CM, so that the burner can upgrade DIY itself and
install other front-stage or small power amplifier boards and other
circuit boards. After upgrading, it will become a beautiful front-stage
or small power amplifier! The chassis is an all-aluminum chassis. If a
small power amplifier board is installed, the power tube can be directly
installed on the bottom plate of the machine without radiator, and the
heat dissipation is as good. If you are interested in renovation, you
can contact the store to provide renovation guidance.
 
9.
The machine is equipped with relay control switch. If other circuits
are installed in the machine, it is convenient to control the power
supply of other circuit boards for easy operation and use.
 
10.
With the function of dynamic spectrum display, after this function is
turned on, the contents of the panel display can form vertical bars
according to audio signals to increase the visual experience. Moreover,
the sampling resistance of the spectrum audio signal is 1.5M (i.e. 1.5
million ohms), which is very large, and basically has no influence on
the sound quality.
 
11.
It has the function of independently adjusting the volume of four
inputs, and the volume amplitude of four inputs can be independently
adjusted. For example, input 1 can be adjusted to 20 when accessing
standard audio sources such as CD, input 2 can be adjusted to 50 when
accessing small audio sources such as mobile phones and radios, and
input 3 or 4 can also be adjusted to different volume values
correspondingly, so that the volume of speakers is basically the same
for each input, which is convenient to use. Of course, the machine can
also be set to the overall volume control. When the volume is adjusted,
the volume of four inputs will change at the same time.
 
12.
With power-on volume limiting function, after setting the maximum
volume of power-on, if the volume of last power-off exceeds the set
maximum volume, it will automatically reduce the volume to the set
volume value. If the volume of last power-off is less than the set
maximum volume value, the machine will remember the volume of last
power-off.
 
13. Using accurate software algorithm, the switching at all levels is very smooth and there is no sonic boom.
 
14.
Machine size: the main body of the case is 430mm wide * 308mm deep *
70MM high. The measured size does not include the knob, RCA seat and
machine foot.
 
15. The chassis is made of all-aluminum alloy, with solid materials and a net weight of about 6kg.
 

The operation mode is as follows:
 
1.
Turn the VOLUME knob on the right side of the machine left and right to
adjust the volume, and the right section of the display screen will
display the volume value accordingly.
 
2.
Turn the SELECT knob on the left side of the machine to switch the four
inputs of the machine, and the left section of the display screen
displays the input status accordingly.
 
3.
Click the SELECT knob, then the output will be muted, and the volume
display will flash all the time. Repeat the operation once or rotate the
volume knob left and right or press the volume key of the remote
control to cancel the mute and restore the volume.
 
4.
Click the VOLUME knob to switch between various functions such as
VOLUME control mode, power-on limiting, brightness, spectrum setting,
etc. When it is adjusted to the corresponding function position, then
rotate the volume knob left and right to set this function.
 
5. All the above functions can be realized by remote control.
 
6. The machine has a memory function, which can remember the setting state of the last shutdown every time it is turned on.
 
The power supply of the machine is 220V AC by default, or the machine with 110V power supply can be customized.
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