BOMGE K7 Bluetooth Portable Audio Mixer Owner’s Manual

: June 16, 2024
: BOMGE

Table of Contents

K7 Bluetooth Portable Audio Mixer
SAFETY INSTRUCTIONS
Channel Control Section
Effect and Master Control Section
MP3 Player and Rear Input/Outout Section
Lnstructions No. Diagram:
Audio Connection
Specification
Read User Manual Online (PDF format)
Download This Manual (PDF format)

PROFESSIONAL MIXER CONSOLE
4/7 channel mic/line mixer
Owner’s Manual

K7 Bluetooth Portable Audio Mixer

BOMGE K7 Bluetooth Portable Audio Mixer

M.D.G.Pro Audio&Digital Musical instrument Division.
V981800 504CRCR1.3-14D0
Printed in China

SAFETY INSTRUCTIONS

CAUTION: To reduce the risk of electrical shock, do not remove the cover (or back). No user serviceable parts inside; refer servicing to qualified personnel. WARNING: To reduce the risk of fire or electrical shock, do not expose this appliance to rain or moisturee.

This symbol, wherever it appears, alerts you to the presence of uninsulated dangerous voltage inside the enclosure y – voltage that may be sufiident to constitute a risk of shock.
This symbol, wherever it appears, alerts you to the important operating and maintenance instructions in the accompanying literature. Read the manual.

DETAILED SAFETY INSTRUCTIONS:
All the safety and operation instructions should be read before the appliance is operated.
Retain Instructions:
The safety and operating instructions should be retained for future reference.
Heed Warnings:
All warnings on the appliance and in the operating instructions should be adhered to.
Follow instructions:
All operation and user instructions should be followed.
Water and Moisture:
The appliance should not be used near water (e.g. near a bathtub, washbowl, kitchen sink, laundry tub, in a wet basement, or near a swimming pool etc.).
Ventilation:
The appliance should be situated so that its location or position does not interfere with its proper ventilaton. For example, the appliance should not be situated on a bed, sofa rug, or similar surface that may block the ventilation openings: or placed in a built-in installation, such as a bookcase or cabinet that may impede the flow of air through the ventilation openings.
Heat:
The appliance should be situated away from heat sources such as radiators, heat registers, stoves or other appliances (including amplifiers) that produce heat.
Power Source:
The appliance should be connected to a power supply only of the type described in the operating instructions or as marked on the appliance.
Grounding or Polarization:
Precautions should be taken so that the grounding or polarization means of an appliance is not defeated.
Power-Cord Protection:
Power supply cords should be routed so that they are not likely to be walded on or pinched by items placed upon or against them, paying particular attention to cords and plugs, convenience receptacles and the point where they exit from the appliance.
Cleaning:
The appliance should be cleaned only as recommended by the manufacturer.
Non-use Periods:
The power cord of the appliance should be unplugged from the outlet when left unused for a long period of time.
Object and Liquid Entry:
Care should be taken so that objects do not fall and liquids are not spilled into the enclosure through openings.
Damage Requiring Sercice:
The appliance should be serviced by qualified service personnel when:

the power supply cord or the plug has been damaged;or
objects have fallen, or liquid has been spilled into the appliance or
the appliance has been exposed to rain; or
the appliance does not appear to operate normally or exhibits a marked change in performance;or
the appliance has been dropped, or the enclosure damaged.

Servicing:
The user should not attempt to service the appliance beyond that which is described in the Operating Instructions.
All other servicing should be referred to qualified service personnel.

Channel Control Section

MIC Input Jacks
These are balanced XLR-type microphone input jacks (1:Ground; 2:Hot; 3:Cold).
LINE Input Jacks
These are balanced TRS phone-jack line inputs (T:Hot: R:Cold: $:Ground).
You can connect either balanced or unbalanced phone plugs to these jacks.
LINE Input Jacks
These are unbalanced phone-jack stereo line inputs.
INSERT Jacks
Each of these jacks provides an insert point between the equalizer and fader of the corresponding input channel. The INSERT jacks can be used to independently con-nect devices such as graphic equalizers, compressors, or noise filters into the corresponding channels. These are TRS (tip, ring, sleeve) phone jacks that carry both the send and return signal (tip = send/out; ring = return/in; sleeve =ground).
GAIN Control
Adjusts the input signal level
To achieve the best balance between S/N ratio and dynamic range, adjust the level so that the CLIP indicator 9 lights only occasionally and briefly on the highest input transients.
Equalizer (HIGH, MID, and LOW)
This three-band equalizer adjusts the channel’s high, mid,and low frequency bands.
Setting the knob to the 0 position pro-duces a flat response in the corresponding band.
Turning the knob to the right boosts the corresponding frequency band,while turning to the left attenuates the band. The following table shows the EQ type,frequency, and maximum cut/boost for each of the three bands.
HIGH: 12kHz +15dB
MID: 2.5kHz +15dB
LOW: 80Hz +15dB
AUX Control
Adjusts the level of the signal sent from the channel to the AUX bus.
EFFECT Controls
Adjusts the level of the signal sent from the channel to the EFFECT bus. Note that the
signal level sent to the bus is also affected by the Channel fader.
PEAK Indicator
The peak level of the post-EQ signal is detected, and the PEAK indicator lights red when the level reaches 3 dB below clipping.
PAN Control
The PAN control determines the stereo positioning of the channel signal on the Main L and R buses.
Channel Fader
Adjusts the level of the channel signal. Use these faders to adjust the balance between the various channels.

Effect and Master Control Section

DELAY Control
Adjust the effect speed.
REP Control
Adijust the effect depth.
AUX control
Adjusts the level level of the signals
EFFECT RTN Fader
Adjusts the signal level sent from the intemal digital effect unit to the MAIN bus.
PHANTOM +48 V Switch
This switch toggles phantom power on and off. When the switch is on the mixer supplies +48V phantom power to all channels that have XLR mic input jacks.
Tum this switch on when using one or more phantom-pow-ered condenser microphones.
POWER Indicator
This indicator lights when the mixer’s power is ON.
Level Meter
This LED meter displays the level of the signal the MAIN OUT.
The*0″’segment corresponds to the nominal output level. The CLIP segment lights red when the output reaches the clipping level.
PHONES Control
Controls the level of the signal output to the PHONES jack
MAIN OUT Master Fader
Adjusts the signal level sent to the MAIN OUT jacks.

MP3 Player and Rear Input/Outout Section

USB MP3 PLAYER
• INDICATOR
Flashing normally is all songs cycle, Flashing quickly is single cycle
• USB JACK
To insert an exteral USB disk.
•
Play / Pause control button.
•
Prev / volume – control buttons.
Press it one time is previous song, press it for a few seconds, you can turn down volume.
•
Next/ Volume + Control buttons.
Press it one time is next song, press it for a few seconds,you can turn up volume.
SEND Jacks
• MON
This is an impedance balanced phone-jack type output. This jack outputs the signals from MON bus.You can use this jack, for example, to connect to an effect unit, cue box,or other monitoring system.
• FX
This is an impedance balanced phone-jack type output that outputs the signal from the FX bus.You can use this jack ,for example, to connect to an external effect unit.
PHONES Jack
Connect a pair of headphones to this stereo phone jack
TAPE OUT Jacks
These RCA pin jacks can be connected to an external recorder such as an MD recorder in order to record the same signal that is being output via the MAIN OUT jacks.
MAIN OUT Jacks
These jacks deliver the mixer’s stereo output. You can use these jacks. for example, to connect to the power amplifier driving your main speakers. You can also connect these jacks to a recording device when you wish to record mixer’s stereo output while using the MAIN OUT Master fader for level control.
POWER Switch
Use this switch to turn the mixer’s power ON or to OFF mode.
Note that a small current continues to flow while the switch is in the OFF position. If you do not plan to cauTion use the mixer for a while, be sure to unplug the AC wadaptor from the all outlet
AC ADAPTOR IN Connector
Connect the supplied power adaptor to this connector.
Use only the adaptor included with this mixer. Use of a different adaptor may result in fire or electric shock.