1. Introduction
The ATUOTIN MCI-MIX 88 is a compact and versatile digital audio mixer designed for various audio applications, including karaoke, live broadcasting, and recording. It features both analog and digital audio processing capabilities, supporting wireless Bluetooth-compatible audio connections, wired analog audio input, and wired digital audio (OTG) input/output. This manual provides detailed instructions for setting up, operating, and maintaining your MCI-MIX 88 mixer.
2. Safety Information
- Read all instructions carefully before using the device.
- Keep the device away from water, moisture, and extreme temperatures.
- Do not attempt to disassemble or modify the device. Refer all servicing to qualified personnel.
- Use only the specified power input (USB 5-20V DC) to avoid damage.
- Ensure proper ventilation around the device during operation.
3. Package Contents
Please check the box for the following items:
- 1 x Compact Karaoke Audio Mixer (MCI-MIX 88)
- 1 x Data cable
- 1 x Audio cable
- 1 x Instruction manual (this document)
4. Product Overview
The MCI-MIX 88 features intuitive controls and multiple connectivity options:
4.1. Controls and Indicators
- Mic 1 Knob: Adjusts the volume for Microphone 1.
- Mic 2 Knob: Adjusts the volume for Microphone 2.
- Music Knob: Adjusts the volume of the audio input (Music In).
- Reverb Effect Knob: Adjusts the reverberation effect level for microphones.
- Mode Button:
- Short press: Switches between microphone reverberation scenes (e.g., Choral Concert, Hall, Echo).
- Long press (3 seconds): Toggles Bluetooth-compatible mode on/off.
4.2. Input/Output Ports
- Mic 1 (6.35mm Jack): Wired input for Microphone 1.
- Mic 2 (6.35mm Jack): Wired input for Microphone 2.
- Power (USB-C Port): Connects to a USB power source (5-20V DC) for device operation and digital audio (OTG) functionality.
- Music In (3.5mm AUX Jack): Wired analog audio input for external music sources.
- Audio Out (3.5mm AUX Jack): Wired analog audio output to speakers, headphones, or other audio devices.
5. Specifications
| Feature | Detail |
|---|---|
| Brand Name | ATUOTIN |
| Model | MCI-MIX 88 |
| Origin | Mainland China |
| Colour | Black |
| Rated Power | 1W |
| Input Current | 2A |
| Input Voltage Range | USB (5-20V DC) |
| Power Source | DC |
| Built-in Battery | Yes |
| Inbox Adaptor | No |
| Product Size (L x W x H) | 170 x 110 x 39 mm (6.69 x 4.33 x 1.54 inches) |
| Gross Weight | 335g |
| High-concerned chemical | None |
6. Setup
The MCI-MIX 88 can be connected to various devices for different applications. Ensure all connections are secure before powering on the mixer.
6.1. Power Connection
Connect the provided data cable to the USB-C Power port on the mixer and to a compatible USB power source (e.g., computer USB port, USB wall adapter, power bank) that provides 5-20V DC.
6.2. Audio Input Connections
- Wired Microphones: Plug your 6.35mm dynamic microphones into the Mic 1 and Mic 2 jacks on the front of the mixer.
- Wired Music Source (AUX): Connect your phone, tablet, or other audio device to the Music In (3.5mm AUX) port using the provided audio cable.
- Bluetooth-compatible Audio: Long press the Mode button for 3 seconds to switch on Bluetooth. Pair your device (e.g., smartphone, tablet) with the mixer.
- Wired Digital Audio (OTG): Connect your computer or mobile phone to the Power (USB-C) port for digital audio input. This port also provides power.
6.3. Audio Output Connections
- Wired Analog Audio Output: Connect speakers, headphones, or an amplifier to the Audio Out (3.5mm AUX) port.
- Wired Digital Audio (OTG) Output: When connected to a computer or mobile phone via the Power (USB-C) port, the mixer can also output digital audio.
7. Operating Instructions
The MCI-MIX 88 supports various application scenarios:
7.1. Karaoke Entertainment
Connect the mixer to a computer, mobile phone, or TV via Bluetooth or a wired connection (Music In or OTG). Then, connect the mixer's Audio Out to a speaker system. Plug in your microphones and adjust volumes and reverb for an immersive karaoke experience.
7.2. Live Broadcast
Connect your computer or mobile phone to the mixer's Power (USB-C) port (OTG). Connect your headphones to the mixer's Audio Out port. This setup allows for live broadcasting with microphone effects and mixed audio.
7.3. Recording
The MCI-MIX 88 can function as a simple mixer for sound recording. Connect professional recording equipment to the mixer's inputs and outputs as needed for sound recording and mixing.
7.4. Car Karaoke
Connect the MCI-MIX 88 to your car amplifier using a 3.5mm audio cable from the mixer's Audio Out to the car amplifier's AUX input. This enables in-car karaoke entertainment.
7.5. Bus Broadcasting System
For long-distance buses or travel buses, the MCI-MIX 88 can be connected to the in-car amplifier via a 3.5mm audio cable to upgrade the existing on-board broadcasting system.
8. Tuning and Adjustments
Use the knobs on the top panel to fine-tune your audio:
- Microphone Volume: Rotate the Mic 1 and Mic 2 knobs to adjust the individual volume levels of each connected microphone.
- Music Volume: Rotate the Music knob to control the overall volume of the background music or audio input.
- Reverb Effect: Rotate the Reverb Effect knob to increase or decrease the intensity of the microphone's reverberation.
- Reverb Scenes: Short press the Mode button to cycle through different reverberation scenes (e.g., Choral Concert, Hall, Echo).
9. Troubleshooting
- No Sound Output:
- Check all audio cable connections (Music In, Audio Out).
- Ensure the mixer is powered on and receiving adequate power.
- Verify that the volume knobs (Mic 1, Mic 2, Music) are not set to minimum.
- Check the volume settings on your connected input and output devices.
- Microphone Not Working:
- Ensure the microphone is properly plugged into the correct Mic input.
- Check the Mic volume knob.
- Test the microphone with another device if possible to rule out a faulty microphone.
- Bluetooth Connection Issues:
- Long press the Mode button for 3 seconds to ensure Bluetooth is enabled.
- Make sure the mixer is in pairing mode and visible to your device.
- Ensure your device's Bluetooth is turned on and within range.
- Try unpairing and re-pairing the device.
- Distorted Audio:
- Reduce the volume levels on both the mixer and the connected devices.
- Check for damaged audio cables.
10. Maintenance
- Clean the device with a soft, dry cloth. Do not use liquid cleaners or aerosols.
- Avoid exposing the device to direct sunlight or heat sources.
- Store the mixer in a cool, dry place when not in use.
11. User Tips
No specific user tips were available from customer reviews or Q&A for this product.
12. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the documentation provided with your purchase or contact the seller directly. A PDF user manual may also be available for download from the seller's product page.