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Functions for VTX12A and VTX15A:
1. USB Port
2. SD/MMC Port
3. LCD Display
4. Mode Button, to switch between USB/SD or FM function. The default setting of Digital Audio Player is
on, press and hold this button for 2-3 seconds to turn it off.
5. Start Playback or to Pause. Folder function: when paused in USB/SD mode, press button for two or
three seconds to select a folder, then select the audio file.
6. Recording Function: Press this button first, then press button start to record and press button
again to stop reord. Press and hold this button for 2-3 seconds to play the recording.
Caution: Only insert USB or SD card when start recording.
7. To select the playback mode: RANDOM to play songs randomly, ALL to repeat all tracks, SINGLE to play
song to song.
8. To return to the start of the previous track or to lower the Digital Audio Player’ s volume. In folder
mode, to skip to the previous page.
9. To skip to the beginning of the next track or to raise the Digital Audio Player’ s volume. In folder mode,
to skip to the next page.
10. Bluetooth Stereo Function and Signal Selection.
11. Level control for MIC/LINE Input: Control the signal for MIC/LINE Input when using the MIC/LINE Input.
12. MIC/LINE Switch: Use the MIC position(depressed) when a microphone is connected. Use the LINE
position(disengaged) when a line level source such as an audio mixing console, audio playback device or
electronic musical instrument is connected.
13. MIC/LINE inputs: these balanced inputs accepts a standard XLR and a 1/4” Jack phone plug. A board
range of signals from microphones, audio(CH1) mixing consoles and electronic musical instruments may
be connected here. The sensitivity of these inputs are controlled by the MIC/LINE switch.
14. Repeat Control: Repeat the times of ECHO when using the microphone.
15. Echo control: Control the depth of echo.
16. LINE LEVEL: Control the output volume for LINE level inputs.
17. LINE IN: Use RCA connector balanced or unbalanced.
18. TREBLE: Raise or attenuate highs at 12dB @ 12 KHz frequency.
19. BASS: Raise or attenuate lows at 12dB @ 80Hz frequency.
20. Master: Controls the master volume of the unit. By turning the knob counter-clockwise you will be
lowering the overall volume of the speaker. By turning the control clockwise you will be increasing the
overall volume of the speaker.
21. PEAK: LED illuminates when a clipped signal is present. Reduce volume to avoid distorted sound.
22. MIX OUT: Use this connector to daisy-chain several active speakers together from the same signal source.
23. Power Supply Switch.
24. Power Supply Input Connector: Use with power cord.
25. NFC Function: Use your mobile phone to be closed to this place under Bluetooth mode, the mobile phone and speaker will be connected
automatically.
26. Remote Control
27. Speakon connector(only for VTX12A)
Warning: Make sure speaker is off and all LEVEL controls are down (counterclockwise) before every use.
Connections:
1.Connect the output from your signal source (mixing console, microphone, preamp, or other mic- or line-level source) directly to the INPUT
connector on the back of the speaker. It accepts balanced line-level signals from mixers, preamplifiers, CD players, tape decks, etc., and accepts
direct connections from dynamic microphones through the MIC input.
2.There is also an XLR Output connector labeled LINE OUT. This allows you to connect more than one VTX12A/VTX15A to the output of your
sound source. Simply plug an XLR cable from the Line Out connector of one speaker to the input connector of another speaker, and so on,
daisy-chaining multiple speakers.
3.Turn on your signal source. (Make sure volume is turned down) Turn on VTX12A/VTX15A. Start signal source and adjust volume controls on
the signal source and VTX12A/VTX15A speaker.
Bluetooth Pairing instructions:
1. Press and release the PAIR button on one speaker only.
2. While pairing light is flashing and the VTX12A/VTX15A name should appear on your pairing device.
3. Click on VTX12A/VTX15A name on your pairing device to complete pairing to the VTX12A/VTX15A.
Bluetooth Stereo Function Usage:
1. Press and release PAIR button on one speaker only, this VTX12A/VTX15A will be left channel.
2. Seltct VTX12A/VTX15A on your device.
3. Press and release STEREO LINK button on each speaker, both speakers should be VTX12A/VTX15A and the other VTX12A/VTX15A will be
right channel.
4. Press and hold STEREO LINK button for 3 seconds to exit the connection.
NOTE: Only exit after connected successfully.
5. LEDs flash while pairing or linking. LEDs light solid when paired or linked.
6. To reset pairing and linking, press and hold either button for 2 seconds.
NOTE: Initial pairing or linking may require 1 minute.
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Step 1: Press and release the
Pair button on one speaker
only. Select VTX15A on your
device to pair with your audio
source device.
Step 2: Press and release the
Link button on each speaker
to link two VTX15A speakers.
