LOMEHO AM-AX6P 6-Channel Amplifier Mixing Console User Manual
Model: AM-AX6P
1. Safety Instructions
Please read and understand all safety instructions before operating the LOMEHO AM-AX6P mixing console. Keep this manual in a safe place for future reference.
1.1. General Warnings
- Electrical Shock Hazard: To reduce the risk of electrical shock, do not remove the cover or back. There are no user-serviceable parts inside. Refer servicing to qualified personnel.
- Fire/Moisture Hazard: Do not expose this appliance to rain or moisture. Do not use near water (e.g., bathtub, washbowl, kitchen sink, laundry tub, wet basement, or swimming pool).
- Ventilation: Ensure proper ventilation. Do not block ventilation openings or place in a built-in installation that impedes airflow.
- Heat: Keep the appliance away from heat sources such as radiators, heat registers, stoves, or other heat-producing appliances.
- Power Source: Connect the appliance only to the specified power supply type.
- Power-Cord Protection: Route power cords to prevent them from being walked on or pinched. Pay attention to cords, plugs, convenience receptacles, and the point where they exit the appliance.
- Cleaning: Clean the appliance only as recommended by the manufacturer.
- Non-use Periods: Unplug the power cord from the outlet when unused for long periods.
- Object and Liquid Entry: Prevent objects from falling and liquids from spilling into the enclosure.
- Damage Requiring Service: If the power cord is damaged, objects have fallen into the appliance, it has been exposed to rain, it does not operate normally, or it has been dropped, service by qualified personnel is required.
1.2. Precautions
- Power Supply: Use only the specified power cord. Do not cover the power cord with cloth or blanket. Always hold the plug, not the cord, when removing from an outlet.
- Location: Do not place the device in an unstable position or where it may come into contact with corrosive gases or salt air.
- Connections: Before connecting to other devices, turn off power for all devices and set all volume levels to minimum.
- Handling: Avoid inserting foreign objects into gaps. Do not rest weight on the device or use excessive force on controls. Avoid prolonged use at high volume levels to prevent hearing loss.
- Abnormality: If you notice any abnormality (e.g., damaged cord, unusual smells, smoke, sudden loss of sound), immediately turn off power, unplug, and seek service.
2. Product Overview
2.1. Main Features
- 6-channel mixer with microphone inputs and stereo/mono line inputs.
- Individual +48V phantom power for condenser microphones.
- PAD switch to support a wide variety of input levels.
- HPF (High-Pass Filter) switches to cut low frequencies.
- Built-in 99 DSP effects for instruments or vocals.
- Bluetooth player for wireless audio streaming.
- USB port for playback (FLAC, MP3, WAV, WMA) and recording (MP3).
- PC record and play functionality.
- 7-Band Stereo Graphic Equalizer.
- Built-in 4Ω 100W x 2 output power amplifier.
2.2. Included Accessories
- LOMEHO AM-AX6P Audio Mixer x 1
- 110V-220V Power Cable x 1 (EU Plug)
- Owner's Manual x 1
- Packing Box x 1
3. Setup
3.1. Connecting Devices
Before making any connections, ensure the mixer and all connected devices are powered off and their volume levels are set to minimum.
- Microphones: Connect dynamic microphones or +48V condenser microphones to the MIC/LINE input jacks (XLR or 1/4" phone plugs).
- Line-Level Devices: Connect electric acoustic guitars, keyboards, or portable audio players to the LINE input jacks.
- Speakers: Connect passive speakers to the SPEAKER OUTPUT jacks on the rear panel. Ensure minimum impedance of 4 ohms per channel.
- Headphones: Connect headphones to the PHONES output jack.
- PC/USB: Connect a computer via USB for recording and playback.
3.2. Powering On and Initial Settings
- Ensure all switches, including the power switch, are in the OFF position.
- Connect the included power cable to the AC INPUT on the rear panel of the mixer, then plug it into an AC outlet.
- Turn the [GAIN], [LEVEL] knobs (white), and [STEREO LEVEL] knob (red) fully to the left (minimum). Set the equalizer knobs (green) to the center "0" position.
- Turn on the power to connected devices in the following order: microphones, audio devices, speakers, then the mixer.
- Set the [STEREO LEVEL] knob to a suitable position.
4. Operation
4.1. Basic Mixing
- GAIN Knob: Adjust the basic volume for each channel. Turn the [GAIN] knob so that the corresponding [PEAK] LED flashes briefly when the input signal is at its loudest.
- LEVEL Knobs: Adjust the volume balance among the channels.
- STEREO LEVEL Knob: Adjust the overall volume output from the [STEREO OUT] jacks.
- PAD Switch: Turn on the [PAD] switch if you hear distortion or if the [PEAK] LED lights up continuously, to attenuate high input levels.
- PHANTOM +48V Switch: Turn this switch ON when using phantom-powered condenser microphones connected via XLR. Ensure it is OFF for dynamic microphones or devices not requiring phantom power.
- HPF (High-Pass Filter) Switch: Turn this switch ON to apply a high-pass filter that attenuates frequencies below 80Hz, useful for reducing unwanted vibration or wind noise from microphones.
4.2. DSP Effects
The mixer features 99 built-in DSP effects.
- Choose Effects: Rotate the "PARAMETER" knob to the desired effect number. The number will flash. Press the "PARAMETER" knob to confirm your selection. If no confirmation within 3 seconds, it reverts to the previous effect.
- Apply Effects: Turn on the [EFFX] knob of the channel(s) (1, 2, 3, 4) to which you want to apply the effect.
- Adjust Effect Parameters: Use the [PARAMETER] knob to adjust parameters like depth or speed for the selected effect.
- Adjust Effect Return Level: Use the [FX RTN LEVEL] knob to adjust the volume of the effect sound.
4.3. Bluetooth Function
- Ensure the MP3/ST3-4 button is in the UP position.
- On the mixer's digital audio player display, the word "BLUE" will appear.
- On your mobile device, enable Bluetooth and search for available devices. Select "Bluetooth" to pair.
- Once paired, stream audio from your device.
- Adjust the channel volume using the LEVEL ST3/4 knob and the main output volume.
4.4. USB Playback and Recording
The USB port supports FAT32 formatted U-Disks with at least one song. It does not support NTFS format or USB microphones.
- USB Playback: Insert a FAT32 U-Disk (containing MP3, FLAC, WAV, WMA files) into the USB port. Playback will start automatically.
- USB Recording:
a. Insert a FAT32 U-Disk with at least one song.
b. Long press the "REC" button to start recording (the "REC" indicator will flash).
c. Long press "REC" again to finish recording and play back the latest recorded file. The recording format is MP3. - PC Record and Play: Connect the mixer to a PC via a USB cable. Use appropriate software on your PC for recording and playback.
4.5. Headphone Volume Control
- Adjust the main output volume.
- Adjust the "PHONES" knob to control the headphone volume.
4.6. 7-Band Graphic Equalizer
The 7-band stereo graphic equalizer allows you to tailor the sound to room acoustics or personal preference. Adjust the sliders for specific frequency bands (80Hz, 160Hz, 430Hz, 1K, 2.5K, 5.3K, 10K) to boost or cut their levels.
5. Controls and Functions Overview
This section provides a detailed description of the mixer's controls and their functions.
- MIC/LINE Mono Input Jacks (Channels 1, 2, 5, 6): Connect microphones or instruments. Supports both XLR and 1/4" phone plugs.
- LINE Stereo Input Jacks (Channels 3/4): Connect line-level devices. Supports 1/4" phone plugs. If only the L/MONO jack is used, sound is output from both L and R speakers.
- PHANTOM +48V Switch/LED: Supplies DC+48V phantom power to XLR plugs of mono input jacks. LED lights when ON.
- PAD Switches: Attenuates input sound. Turn ON if distortion occurs or PEAK LED lights.
- HPF (High-Pass Filter) Switches: Applies a high-pass filter (80Hz, 12dB/oct) to cut frequencies below 80Hz.
- GAIN Knobs: Determines the basic volume for each channel. Adjust so PEAK LEDs flash briefly.
- Equalizer (EQ) Knobs (HIGH, MID, LOW): Adjust sound quality for high, mid, and low frequency bands. Set to center "0" for flat response.
- EFFX Switches: Toggles the built-in effects for channels 1 and/or 2 and/or 5/6 on and off.
- PEAK LED: Lights when input/post-equalizer sound volume is too high. Turn GAIN knob left to lower volume.
- LEVEL Knobs: Adjust volume balance among channels.
- MP3 PLAYER LEVEL (Bluetooth/USB): Controls the volume output of the digital audio player.
- MAIN LEVEL Knob: Adjusts the overall volume output from the [STEREO OUT] jacks.
- POWER LED Indicator: Lights when the mixer is powered on.
- Level Meter: Shows the level of the signal output from the [STEREO OUT] jack.
- PHONES LEVEL Knob: Adjusts the headphones volume.
- Graphic 7-Band Equalizer: Allows tailoring sound to room acoustics.
- ST LINE/MP3 [Bluetooth player]: Switches audio source input between LINE stereo input jack and MP3 (U disk)/Bluetooth.
- STEREO OUT Output Jacks: Connect powered speakers or powered amplifiers. Supports both XLR and 1/4" phone plugs.
- PHONES Output Jack: Connects a set of headphones. Supports a stereo phone plug.
- UHF Wireless Microphone Controls (if applicable):
- ANT: Connect antenna correctly.
- LINE(MIC)/UHF mic: Line in or UHF mic signal switching.
- MIC A (RF) Light / MIC B (RF) Light: Lights up when handheld microphone is active.
6. Specifications
| Feature | Specification |
|---|---|
| Frequency Response | +0.5 dB/-0.5 dB (20 Hz to 20 kHz) |
| Total Harmonic Distortion (THD+N) | 0.01% @ +8 dBu (20 Hz to 20 kHz), 0.003% @ +18 dBu (1 kHz) |
| Equivalent Input Noise | -128 dBu (Mono Input Channel, Rs: 150Ω, GAIN knob: Max) |
| Hum & Noise | -102 dBu (STEREO OUT, STEREO LEVEL knob: Min) |
| Crosstalk (1 kHz) | -88 dB |
| Input Channels | Mono (MIC/LINE): 2, Stereo (LINE): 2 |
| Output Channels | STEREO OUT: 2, PHONES: 1 |
| Bus | STEREO: 1 |
| PAD | 26 dB |
| HPF | 80 Hz, 12 dB/oct |
| EQ HIGH | Gain: +15 dB/-15 dB, Frequency: 10 kHz shelving |
| EQ MID | Gain: +15 dB/-15 dB, Frequency: 1 kHz shelving |
| EQ LOW | Gain: +15 dB/-15 dB, Frequency: 100 Hz shelving |
| PEAK LED | Lights when post EQ signal reaches 3 dB below clipping (+11 dBu) |
| Level Meter | 2 x 5-segment LED meter [PEAK (+11), +6, 0, -10, -16 dB] |
| Internal Digital Effect DSP Algorithm | 99 programs |
| Phantom Power Voltage | +48 V |
| Power Supply Cord | AC 100V-240V, 50Hz/60Hz; DC12V 2000MA |
| Power Consumption (6CH) | 22W |
| Dimensions (WxHxD) | 260 x 100 x 230 mm (10.24 x 3.94 x 9.06 in) |
| Net Weight | 2.89 kg |
| Power Consumption 4 ohm (MAX) | 100W*2 (MAX) |
| Maximum Protection of Power Input | AC245V, 460W (MAX) |
| Power Supply Low Voltage Protection | AC95V, 380W (MAX) |
| Maximum Temperature Protection | 100°C (Inside the chassis) |
| Operating Temperature | 0 to +40°C |
7. Maintenance
7.1. Cleaning
Clean the appliance only with a dry and soft cloth. Do not use paint thinners, solvents, cleaning fluids, or chemical-impregnated wiping cloths.
7.2. Non-Use Periods
If the unit will not be used for an extended period, unplug the AC power adapter from the outlet.
7.3. Handling Caution
- Avoid inserting or dropping foreign objects into any gaps or openings on the device.
- Do not rest your weight on the device or place heavy objects on it. Avoid using excessive force on buttons, switches, or connectors.
- Avoid setting all equalizer and level knobs to their maximum, as this may cause feedback and damage speakers.
8. Troubleshooting
If you encounter issues with your LOMEHO AM-AX6P mixer, refer to the following common troubleshooting steps.
8.1. No Sound or Low Volume
- Ensure all cables are securely connected.
- Check that the mixer and all connected devices are powered on.
- Verify that [GAIN], [LEVEL], and [STEREO LEVEL] knobs are not set to minimum.
- If the [PEAK] LED does not light even with the [GAIN] knob turned fully right, increase the volume of the sound source.
- If the [PAD] switch is ON, try turning it OFF.
- Check the volume of connected speakers or power amplifiers.
8.2. Distortion / PEAK LED Flashing Continuously
- Turn the [GAIN] knob to the left to lower the input volume until the [PEAK] LED flashes only briefly or not at all.
- If connecting a high-output device, turn ON the [PAD] switch for the corresponding channel.
- Ensure that the equalizer knobs are not set to extreme levels.
8.3. Phantom Power Issues
- Ensure the [+48V] switch is ON for condenser microphones and OFF for dynamic microphones.
- Phantom power is only supplied to XLR sockets, not 1/4" (6.3mm) sockets.
- Do not connect non-48V condenser microphones (e.g., 3.5mm plug computer microphones) to the mixer.
8.4. USB Playback/Recording Issues
- Ensure the USB drive is formatted to FAT32. NTFS format is not supported.
- Verify that there is at least one compatible audio file (MP3, FLAC, WAV, WMA) on the U-Disk for playback.
- The USB port is not for USB microphones.
8.5. Bluetooth Connection Issues
- Ensure the MP3/ST3-4 button is in the UP position.
- Check that "BLUE" is displayed on the mixer's digital audio player.
- Verify Bluetooth is enabled on your mobile device and it is searching for the mixer (named "Bluetooth").
8.6. UHF Wireless Microphone Crosstalk
If multiple UHF wireless microphone sets are used in the same environment and crosstalk occurs, follow these steps to re-match:
- Adjust the transmitter and receiver to the shutdown state simultaneously.
- Transmitter: Press the power switch and frequency hopping button simultaneously for about 4 seconds until the display enters a fast scintillation state.
- Receiver: Turn on the power supply of the receiver; the RF indicator will flash four times.
- Transmitter: Briefly press the FH button to exit the pairing.
9. User Tips
- Gain Staging: Always set your gain knobs carefully. The goal is to get a strong signal without clipping (PEAK LED flashing constantly). A good starting point is to set the gain so the PEAK LED flashes only occasionally on the loudest parts.
- Power On/Off Sequence: To prevent loud pops and potential damage to your speakers, always power on your mixer and connected devices from the source (microphones, instruments) to the output (speakers/amplifiers). Reverse this sequence when powering off.
- USB Drive Compatibility: Remember to format your USB drives to FAT32 for optimal compatibility with the mixer's USB functions.
- Effect Experimentation: Don't hesitate to experiment with the 99 DSP effects to find the perfect sound for your vocals or instruments.
10. Warranty and Support
For service or support, please contact your dealer or qualified service personnel. Do not attempt to service the appliance beyond what is described in this manual.
