USB-80A Amplifier with Pre-amplifier
Two Microphone inputs, two LINE inputs;
Independent microphone volume control;
40 Watt maximum output, 100 Volts constant voltage output, 4-16Ohms fixed resistance output;
Acceptable audio sources included radio tuner microphone, MP3 player, cassette player, TV audio output, CDplayer, VCD/DVD player and so on.
Description
Front Panel：
1) POWER SWITCH
Use this switch to turn on the unit after all input devices are already connected to prevent damage to you equipment. Turn the unit on/off before you turn off the knob of output level.
3）MIC1 LEVEL CONTROL
Let you control the MIC 1 level as they enter the mix
4）MIC2 LEVEL CONTROL
Let you control the MIC 2 level as they enter the mix
5）MIC 1 INPUT JACK
Connect your MIC 1 at this location with 1/4” TRS jack.
6）MIC 2 INPUT JACK
Connect your MIC 2 at this location with 1/4” TRS jack.
7）MUSIC BASS
This knob adjusts the bass tone of the music output.
8）MUSIC TREBLE
This knob adjusts the high tone of the music output.
9）SPEAKER MASTER LEVEL CONTROL
Let you control mixer’s overall SPEAKER volume level.
10）CH1 LEVEL CONTROL
Let you control ch1’s overall SPEAKER volume level.
11）CH2 LEVEL CONTROL
Let you control ch2’s overall SPEAKER volume level.
13) SD/MMC Slot
Connect your SD/MMC devices to this slot to play music with MP3 or WMA format.
12) USB Slot
Connect your USB devices to this slot to play music with MP3 or WMA format.
14) MP3-MODE
When started, press each time to toggle among the following input sources:
USB/SD-LINE-FM-BT (only when the devices are connected). If no device is connected, it will skip to next device.
15) MP3-NEXT
Use this button to select the next track. Also use this button to control level UP.
17) MP3-PREV
Use this button to select the previous track. Also use this button to control level down.
16) MP3-PLAY/PAUSE
Each time you press this button, the operation changes from play to pause or from pause to play
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