LAX GM-12F 12 Channels Multi Functional Mixer User Manual

LAX GM-12F 12 Channels Multi Functional Mixer

Product Information

Specifications

• Product Name: Mixing Console
• Model: GM-12F/18F Series
• Manual Version: User’s Manual

Installation Instructions
It is recommended to keep this manual for future reference.
Please read the manual carefully before using the product to prevent personal injury and property damage caused by improper operation.

Introduction
Thank you for purchasing our mixing console. This manual will provide you with all the necessary information to maximize the use of the product and ensure trouble-free operation. Please keep this manual available for future reference.

Connecting to Power

1. Make sure that the mixer’s power switch is off.
2. Connect the socket end of the power cord to the AC IN connector on the rear of the mixer.
3. Plug the other end of the power cord into a standard household power outlet. Remember to unplug the adapter when not using the mixer or during lightning storms.
4. To turn the power on, press the mixer’s power switch to the ON position. To turn the power off, press the power switch to the STANDBY position. Note that trace current continues to flow while the switch is in the STANDBY position. If you do not plan to use the mixer for a long while, make sure to disconnect the power.

Digital Effect Program Table List

The table below shows the available digital effect programs:

Input Channel Block

The mixing console has multiple input channels. The configuration is as follows:

• MONO INPUT CHANNELS 1-8
• MONO INPUT CHANNELS 9/10-11/12
• MONO INPUT CHANNELS 13/14-15/16

PHANTOM +48V Switch

The mixer includes a PHANTOM +48V switch for supplying phantom power to condenser microphones. Here are some important points to remember:

• Toggle the switch to turn on/off the phantom power.
• Only turn on the switch when using condenser microphones that require phantom power.
• Make sure to disconnect devices other than condenser microphones from the XLR input jacks to avoid damage.

General Specifications

The general specifications of the mixing console are as follows:

• Product Dimensions: Refer to the Dimensional Diagrams section
• Product Weight: Not specified

Dimensional Diagrams

Please refer to the provided dimensional diagrams for detailed information on the product’s dimensions.

FAQ (Frequently Asked Questions)

Q: Can I use dynamic microphones with the mixer?
A: Yes, the mixer supports dynamic microphones. However, the PHANTOM +48V switch should be turned off when using dynamic microphones.

Q: Can I connect external audio devices to the mixer?
A: Yes, you can connect external audio devices to the mixer using the available input channels.

Q: Can I use the mixer without connecting it to a power outlet?
A: No, the mixer requires power to function. Make sure to connect it to a standard household power outlet.

Please keep this manual properly.
Please make sure to read the relevant materials of this product first, and then install and use this product according to the requirements therein.
This manual is for reference only and is subject to change without notice.

Features

• 12/16 input Chs, 4/8 mono input Chs, 4 stereo input Chs
• 1-8 Chs/1-12Chs with DC +48V phantom power supply
• 1-4Chs/1-8Chs with INSERT i/O jack for independent connection to the external effector
• 1-4Chs/1-6Chs with compression control
• GM-12F 1-8 Chs 3 bands EQ(H/M/L),9-12Chs 2 bands EQ
• GM-18F 1-8 Chs 3 bands EQ with Mid swept function,9-16 Chs 3 bands EQ
• 2 AUXs (AUX pre function/FX),3AUXs (AUX1/AUX2 pre function/FX)
• GM-12F with 2 Groups(G1-2),GM-18F 4 Groups(G1-2,G3-4)
• Channel quick mute with Translucent rubber pad 60mm channel faders and 100mm Group faders 32 kinds of DSP effects
• Multifunctional USB system (with mp3 player, FXs display, bluetooth, Udisk driver, PC or Mobile soundcard to mixer , monitor/master/AUX etc. signal display)

Installation instructions

It is recommended that you keep this manual for future reference.

Common safety symbols and warnings:
The safety symbols and warnings shown in this manual are to prevent personal injury and property damage caused by improper operation.
Please read this manual carefully before using this product, and be sure to understand various safety symbols and warning signs, so as to know the potential dangers.

WARNING
Always follow the warning or caution to avoid the possibility of serious injury or even death from un proper operation

Installing Warning:

• Do not expose the device to rain, use it near water or in damp or wet conditions, to avoid the electric shock or fire, etc.
• Use the voltage specified as correct for the device, it is printed on the place of the device
• Never trim, twist, damage or replace the wires of the inner device.
• Do not use the device near heat sources, do not place heavy objects, including wire cable on device, to avoid electric shock or fire.
• Make sure stable rackmounting
• When unpluging the plug,do please keep the hand dry,to avoid electric shock or damage.
• Close the power before unpluging the plug.
• Keep the right way to pull out the plug,avoid to damage the cable.
• Before moving the device,keep closing the power supply.
• Do not cover the vent of the device, to avoid overheating inside the machine and fire. .Avoid installing the device in places with much dust or direct contact with sunlight or black smoke and steam condition, to prevent fire or electric shock.

Caution:

• Following abnormal conditions are found during use, please turn off the power immediately, unplug the power plug, and contact your nearest dealer immediately. Do not continue to use it to avoid fire or electric shock.

• The device emits smoke or strange smell. When water or metal objects fall into the device. The device falls or the casing is damaged.

• Wire damage (exposed wire core, broken wire, etc.)
  Fault found (no sound or noise, etc.).

• To avoid fire or electric shock, never open the housing because it contains high-voltage parts. Do not place cups, bowls, vases, metal vessels and other objects containing water on the machine.

• If the liquid is accidentally spilled into the device, it will burn the machine and even cause fire or electric shock.

• Do not put metal objects or inflammable materials through the vent on the machine cover, nor coins, otherwise it will cause fire or electric shock.

• Do not place heavy objects on the machine to avoid personal injury or property damage caused by the device slipping.

• Turn the volume to the lowest level before starting the device. High volume may cause hearing damage when starting the machine.

• Do not extend the use of the horn when the sound is distorted. This is a sign of failure, which is easy to cause the machine to overheat and cause a fire.

• Please clean the dust on the device and power plugs and sockets regularly. Long time dust accumulates, the device may be damaged or cause a fire.. When cleaning the dust or stopping the device for more than ten days, please unplug the power plug to avoid electric shock or fire.

Introduction

Thank you for purchasing our mixing console. Please read this manual thoroughly to get themost out of the product and ensure long- term, trouble- free use. After readingthis manual, please keep it available for future reference.

Connecting to power

1. Be sure that the mixer’s power switch is off.

2. Connect the socket end of the power cord to the AC IN connector on the rear of the mixer

3. Plug the other end of the power cord into a standard household power outlet
   Be sure to unplug the adaptor from the outlet when not using the mixer, or when there are lightning storms in the area.

4. Turning the power On/Off
   Press the mixer’s power switch to the ON position. When you are ready to turn the power off, press the power switch to the STANDBY position.
   Note that trace current continues to flow while the switch is in the STANDBY positionIf you do not plan to use the mixer again for a long while, please be sure

Digital Effect Program table list

Input channel block

1. PHANTOM +48V Switch
   Switch toggles phantom power on and off.When the switch is on the channel supplies+48V phantom power to all channels that have XLR mic input jacks. Turn the channel switchs on when using one or more phantom-powered condenser microphones.

   • Be sure to leave this switch off if you do noted phantom power.
   • When turning the switch on, be sure that only condenser microphones are connected to the XLR input jacks. Devices other than condenser mics may be damaged if connected to the phantom power supply.

2. MIC Input jacks
   These are balanced XLR- type microphone input jacks. (1:Ground; 2: Hot; 3: Cold)

3. LINE Input Jacks (monaural channels)
   These are balanced TRS phone-jack line inputs. (T: Hot; R:Cold; S: Ground). You can connect either balanced or unbalanced phone plugs to these jacks.

4. LINE Input Jacks (stereo channels)
   These are unbalanced phone-jack stereo line inputs.

5. LINE Input Jacks (stereo channels)
   These are unbalanced stereo RCA pin jacks.
   NOTE: On channels that provide multiple input jack optionsonly one type of jack can be used at a time.

6. INSERT Jacks
   These jacks can be used to insert an external signal-processing device between the equalizer and fader of the corresponding monaural input channel. The INSERT jacks are ideal for connecting devices such as graphic equalizers, compressors, or noise filters into the corresponding channels.
   The signal output from the INSERT jacks is reverse-phased. This should not be a problem when connecting to an effect unit, but please be aware of the possibility of phase conflict when connecting to other types of device. A reversed-phased signal may result in degraded sound quality or even complete sound cancellation.

7. GAIN Control
   Adjusts the input signal level. To get the best balance between the S/N ratio and the dynamic range, adjust the gain so that the PEAK indicator lights only occasionally and briefly on the highest input transients. The -60 to -16 scale is the MIC input adjustment range. The -34 to +10 scale is the LINE input adjustment range.

8. Switch (High-Pass Filter)
   This switch toggles the HPF on or off. To turn the HPF on, press the switch in ( ). The HPF cuts frequencies below80 Hz (the HPF does not apply to the line inputs of stereo input channels 4).

9. COMP
   Adjusts the amount of compression applied to the channel. As the knob is turned to the right the compression ratio increases while the output gain is automatically adjusted accordingly. The result is smoother, more even dynamics because louder signals are attenuated while the overall level is boosted.

10. [PEAK] indicators
    The peak level of the post-EQ signal is detected,and the PEAK indicator lights red when the level reaches 3 dB below clipping. When signal input,SIG indicator light.

11. Equalizer [HIGH]/[MID][LOW])
    The equalizer shapes the high, mid, and low audio frequencies. Turning the knob to the right amplifies (boosts) the cor-responding frequency band, while turning it to the left attenuates (cuts) the band. Setting the knob to the middle” ” position produces a flat response in the corresponding band. The upper knob sets the variable mid frequency, while the lower knob sets the amount of attenuation or boost (counter- clockwise/clockwise) for the range.
    The following table shows the EQ type, frequency, and cut/boost range for each of the three bands.
    The monaural channel MID frequency can be adjusted from250 Hz to 5 kHz. The MID frequency is 2.5 kHz when the MID frequency control is set at the center position.

12. AUX, EFFECT Control
    Adjusts the level of the signal sent from the channel to the AUX and EFFECT buses. These knobs should generally beset close to the” ” position. These controls send either the signal from immediately prior to the channel fader (prefader signal) or the signal after the channel fader (post-fader signal) to the corresponding buses.
    channel fader (post-fader signal) to the corresponding buses. The types of signals sent by the AUX and EFFECT controls on each mixer model are as follows:

13. GM-12F

14. AUX1: Pre or post fader (determined by the PRE switch)

15. AUX2/EFFCT: Post-fader

16. GM-18F

17. AUX1: Pre-fader

18. AUX2: Pre or post fader (determined by the PRE switch)

19. AUX3/Effect: Post-fader

20. AUX PRE Switch
    Selects whether the pre- fader or the post- fader signal is fed to the AUX buses. If the switch is on ( ), the mixer sends the pre-fader signal to the AUX buses, so that AUX outputs are not affected by the channel fader . If the switch is off( ) the mixer sends the post- fader signal to the AUX buses.

21. PAN Control PAN/BAL Control BAL
    Control
    The PAN control determines the stereo positioning of the channel signal on the GROUP 1/2 and GROUP 3/4 buses or on the STEREO L/R bus. The BAL control knob sets the balance he il tan hate to she Grain lot buses or to the STEREO L bus; signals input to the R input (even channel) go to the GROUP 2 or 4 buses or the STEREO R bus.
    NOTE: On channels where this knob provides both PAN and

22. ON Switch
    Turn this switch on to send the signal to the buses. The switch lights orange when on.

23. PFL (Pre-Fader Listen) Switch
    This switch lets you monitor the channel’s pre-fader signal.Press the switch in( ) so that it lights to turn it on. Whenthe switch is on the channel pre- fader signal is output to thePHONES and MONITOR OUT jacks for monitoring.

24. 1-2 Switch
    This switch assigns the channel’s signal to the GROUP 1/2bus.
    NOTE: To send the signal to the GROUP 1/2 bus turn the ON switch on( ).

25. 3-4 Switch
    This switch assigns the channel’s signal to the
    GROUP 3/4bus.
    NOTE: To send the signal to the GROUP 3/4 bus turn the ON switch on( ).

26. ST Switch
    This switch assigns the channel’s signal to the STEREO L/Rbus.
    NOTE: To send the signal to the STEREO bus turn the ON switch on (

27. Channel Fader
    Adjusts the level of the channel signal. Use these faders to adjust the balance between the various channels.

NOTE :Set the fader sliders for unused channels all the way down to minimize noise.

Digital effector & USB system

1. FOOT SWITCH
   A foot switch (sold separately) can be connected to this jack andused to toggle the digital effects ON and OFF
   Digital audio processing system

2. 32 types of digital Fxs table list
   Built-in the Fxs table list, please check the page of the table list.

3. LCD display.
   Effect types & detail display, U-disk play list display,play order control, whole list automatic cycle,Bluetooth, Stereo output/ AUX out/Group output/PFL

4. USB and effects program control
   Input the U-disk or USB cable to PC, can play multi-format audio file (such as: MP3/WAV/WMA/FLAC etc.)
   Control Table
   NOTE:

   • active the playist, then scan and enthose the wage swit again program switch. can choose the previous and next one directly.
   • Long-press the MENU switch, enter or exit the bluetooth page
   • Bluettoth name: LAX-MIX
   • Program control
   • press the program switch to choose FX type/time/FX percentage.
   • Rotate the switch to adjust FX type/time/ percentage

5. AUX Control
   Adjusts the level of the signal sent from the internal digital effect unit to the AUX buses.
   EFF-AUX effect signal to AUX buses.

6. ON Switch
   Switches the internal effect on or off. The internal effect is applied only if this switch is turned on. The switch lights orange when on. actre went power sint ay the internal effect unit is

7. PFL Switch
   Turn this switch on to send the effect signal to PFL bus.

8. GROUP 1-2
   This switch assigns the effect signal to the GROUP1-2 bus.

9. GROUP 3-4 Switch
   This switch assigns the effect signal to the GROUP3-

10. GROUP 3-4 Switch
    This switch assigns the effect signal to the STEREO L/R bus.

11. EFFECT RTN
    Adjusts the signal level sent from the internal digital effect unit to STEREO bus

Master control

1. SEND Jacks (AUX, EFFECT)
   These impedance balanced* TRS phone jacks output the signals from the AUX/EFFECT buses. The pre-fader send option should be selected if you are connecting to a monitor system, while the post- fader send option is the best choice when connecting to external signal processors (e.g. effects units).

2. GROUP OUT(1-4) Jacks
   These impedance- balanced* TRS phone jacks output the GROUP 1-2 and 3-4 signals. Use these jacks toconnect to the input jacks of an multi-track recorder, external mixer, or other such device.

3. REC OUT (L, R) 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 STEREO OUT jacks.
   NOTE: The mixer’s STEREO OUT Master fader has no affect on the signal output via these jacks. Be sure to make appropriate level adjustments at the recording device.

4. 2TR IN Jacks
   These RCA pin jacks input a stereo sound source. Use these jacks when you want to connect a CD player directly to the mixer.

5. RETURN L (MONO), R Jacks
   These are unbalanced phone-jack type line inputs. The signal received by these jacks can be sent to the STE-REO LR bus as well as the AUX1 and AUX2 buses.
   When a stereo signal is returned a mono mix of the signal is sent to the AUX1 and AUX2 buses. These jacks are typically used to receive the signal returned from an external etc. device(reverb, delay, etc.).

6. STEREO OUT(L,R) Jacks
   These jacks deliver the mixer’s stereo output. You use ampliard for you main speakers. You can also connect these jacks to a recording device when you wish to record mixer’s stereo output while using the STEREO OUT Master fader for level control.
   XLR jacks
   XLR-type balanced output jacks.
   LINE jacks
   TRS phone-type balanced output jacks.

7. STEREO OUT(L,R) Jacks
   These are impedance- balanced* TRS phone- type output jacks.
   NOTE:
   The signal output by these jacks is determined by the MONITOR switch, the 2TR IN USB switch, and the PFL switches on the input channels.

8. PHONES Jack
   Connect a pair of headphones to this TRS phone-type output jack. The PHONES jack outputs the same signal as the MONITOR OUT jacks.

9. Output signal level display
   PL/PR Signal monitor
   AUX/EFX/EFX signal monitor
   G1/G2 signal level monitor
   L/R signal level monitor

10. RETURN
    AUX1, AUX2 Control
    Adjusts the level at which the LR signal received at the RETURN jacks (L (MONO) and R) is sent to the AUX1 and AUX2 buses.
    STEREO Control
    Adjusts the level at which the signal received at the RETURN jacks (L (MONO) and R) is sent to the STEREO L/R bus.
    NOTE: It you supply a signal to the RETURN L (MONO)jack only, the mixer sends the same signal to both the L and R STEREO buses.

11. MASTER SEND
    Adjusts the signal level sent to the SEND (AUX,EFFECT)jacks.
    NOTE: If you are using the Master SEND control (EFFECT) does not affect the level of the signal sent from the EFFECT bus to the internal digital effect processor.

12. MONITOR /PHONES
    MONITOR switches
    These switches select the signal sent to the MONITOR OUT jacks, PHONES jack and the level meter from STEREO L R bus, GROUP1-2 bus or GROUP 3-4 bus.
    STEREO LR bus: STEREO)
    GROUP 1-2bus:GROUP( ), 1-2(
    GROUP 3-4 bus: GROUP ( ),3-4(
    2TR IN/USB Control
    Adjusts the level of the signal sent from the 2TR IN jack sand the USB connector.

13. TR IN
    2TR IN Switch
    If this switch is set to TO MONITOR ( ). the signals input via the 2TR IN jacks are sent to the MONITOR OUT jacks, the PHONES jack, and the level meter. If it is set to TO STEREO , the signals are sent to the STEREO L/R bus.
    2TR IN Control
    Adjusts the level of the signal sent from the 2TR IN jacks.
    The following illustration shows how the switch settings cor-respond to the signal selection.
    MONITOR MIX: When overdubbing, you can adjust the levels of the monitor playback signal and the signal being recorded separately
    MONITOR MIX
    NOTE: If the input channel PFL switch is on( ), then only the PFL output from that channel is sent to the MON-ITOR OUT jacks, PHONES jack, and level meter.

14. Group 1-2 Fader
    Adjusts the signal level sent to the GROUP OUT 1-2 jacks.

15. Group 3-4 Fader
    Adjusts the signal level sent to the GROUP OUT 3-4 jacks.

16. ST Switch
    If this switch is on, the signals are sent to the STEREO L R bus via the GROUP 1-2 fader or GROUP 3-4 fader. The GROUP 1 and 3 signals go to STEREO L and the GROUP 2 and 4 signals go to STEREO R.

17. STEREO OUT Master Fader
    Adjusts the signal level sent to the STEREO OUT jacks.

General Specifications

| GM-12F| GM-18F
---|---|---
Input channels| ****

Mono: MIC/LINE

| 4| **
Mono/Stereo: MIC/LINE| 2| **
Stereo: LINE| 2| **
Output channels| STEREO OUT| 2| **
MONITOR OUT| 1| **
PHONES| 1| **
AUX SEND| 2| **
GROUP OUT| 2| **
Bus| STEREO| 1| **
GROUP| 2| **
AUX| 2| **
Input Channel Function| PAD| 26dB
**| 80 Hz, 12 dB/oct (Mono/Stereo: MIC only)
****| 1 knob compressor (Gain/Threshold/Ratio)

Threshold: +22 dBu to -8 dBu, Ratio: 1:1 to 4:1, Output level: 0 dB to 7 dB Attack time: approx. 25 msec, Release time: approx. 300 msec

EQ| HIGH: Gain: +15 dB/-15 dB, Frequency: 10 kHz shelving

MID:

Gain: +15 dB/-15 dB Frequency: 2.5 kHz peaking

| ****

MID:

Gain: +15 dB/-15 dB

Frequency: Mono 250 Hz – 5 kHz peaking Stereo 2.5 kHz peaking

LOW: Gain: +15 dB/-15 dB, Frequency: 100 Hz shelving
PEAK LED| LCD display turns on when post EQ signal reaches 3 dB below clipping level
Level Meter| GROUP| 2 × 16 -segment LCD meter [PEAK, +10, 0, -3, -15, -35 dB]
MASTER| 2 × 16 -segment LCD meter [PEAK, +10, 0, -3, -15, -35 dB]
MONITOR OUT| 2 × 16 -segment LCD meter [PEAK, +10, 0, -3, -15, -35 dB]
Built-in Effect| Dsp 32 types of effects
Phantom Power Voltage|
USB Audio/BT/Soundcard| 2in/2out
Dimensions (W × H × D) & N.W| 47.53611.8cm  N.W:5.62kg| 50.84411.8cm  N.W: 7.6kg
Power Requirements|
Power Consumption| |
Included Accessory| Owner’s Manual, Technical Specifications, Rack-mount Kit, power cable, USB cable
Operating Temperature| ****

0 dBu = 0.775 Vrms, Output impedance of signal generator (Rs) = 150 Ω
All level controls are nominal if not specified.

Dimensional Diagrams

Rack Mounting
Note: If the mixer is to be mounted with device that tend to generate heat, such as power amplifiers, be sure to install ventilation panels to prevent high temperatures from developing inside the mixer

LAX SOUNDS, THE WORLD LISTENS

GUANGZHOU RUIFENG DIGITAL TECHNOLOGY CO.,LTD.

Add: No. 10, Shilou Section, Shilian Road Shilou Town,Panyu District, Guangzhou China

Tel:020-3928 0003
E-mail: lax-pro.com
www.lax-pro.com

References

• 锐丰科技-广州市锐丰音响科技股份有限公司官网
• 锐丰科技-广州市锐丰音响科技股份有限公司官网

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