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AMPLIFIER BACK PANEL
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1. MICA / MICB: Two-channel A / B microphone signal input port
2. BGM / AUX: 2-channel L / R Analog audio signal input port
3. SUB LINE: Subwoofer connection output port
4. SOFTWARE CONTROL: USB port for computer connection to adjust amplifier settings using software.
5. SPEAKER OUT: 2 channel L / R speaker (8ohm) port
6. AC IN: Power cord socket.
7. OPTICAL: Digital signal input port, Optical cable output for TVs or Karaoke players, HD box etc.
8. HDMI IN: Digital signal input port, only receives HDMI signals from TVs through HDMI cable to HDMI (ARC) port,
does not receive HDMI signals from Karaoke players, HD box etc.
9. AMPLIFIER HEAT FAN: turns on automatically when the amplifier overheats and automatically stops when
amplifiers temperature stabilizes.
AMPLIFIER DISPLAY INTERFACE
When the power switch is pressed, the LCD displays "Karaoke System Ver: 1.01 HDMI". After 5 seconds,
it will automatically enter the main system and display the user interface. The following items will be
displayed:
MUS: displays current music volume level, adjust by turning MUSIC VOL knob.
KTV1: Effect mode that combines both reverb and echo with default manufacturer settings. You can select
other default modes with the buttons KTV2, KTV3 and KTV4 to suit different voices.
FBX: displays the anti-feedback mode for microphones, choose from different levels (total of 8 levels FBX1-
FBX8) or turn off by pressing FBX button.
EFF: displays current effect volume, adjust by turning EFF VOL knob
MIC: displays the current microphone volume, adjust by turning MIC VOL knob
NAVIGATION OF AMPLIFIER MENU SECTIONS
After selecting each section (MUSIC, MIC, EFF), press FBX (up) / IN (down) to navigate to the item to be
adjusted, turn the MIC VOL knob to adjust each item. If there is no additional adjustment operation, after
1 minute, the detailed adjustment interface of each section will automatically return to the default main
interface of the amplifier.
MUSIC SECTION
Navigate with the FBX (up) / IN (down) buttons, the music customizations list features the following
sections:
PHASE: phase adjustment 0 ° -180 ° .2.
EQ BYPASS / ON/OFF: Turn EQ on/off
HPF FREQ / 10 - 300HZ: cut off excess low frequencies, typically not adjusted but left at the default level
of 10Hz. (In the computer software for adjustment an LPF FREQ setting will be available, used to cut off the
excess high frequencies)
EQ 1 -> EQ 7 / F: 10Hz -> 22000Hz; G: +/- 12dB (Gain: Intensity)
The Music section has 7 customizable EQ bands.
EQ 1 -> EQ 2: adjusts bass frequencies from 63Hz -> 160Hz
EQ 3 -> EQ 5: adjusts middle frequencies from 400Hz -> 2500Hz
EQ 5 -> EQ 7: adjusts high frequencies from -> 10000hz
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