Doslnlya EX12 12-Channel Bluetooth Mixer Instruction Manual

1. Product Overview

The Doslnlya EX12 is a versatile 12-channel audio mixer designed for professional sound applications. It integrates a 99 DSP effects processor, Bluetooth connectivity, MP3 playback, and USB recording capabilities. This mixer features both mono 3-segment and dual 7-segment main equalization adjustments, providing comprehensive control over your audio.

Figure 1: Doslnlya EX12 12-Channel Bluetooth Mixer

Key Features:

• 12-channel input mixer with built-in wireless Bluetooth.
• Supports driverless USB recording and playback.
• Integrated 99 DSP reverberation effects for diverse sound environments.
• Mono 3-segment equalization adjustment for individual channels.
• Dual 7-segment main equalization adjustment for overall mix control.
• LCD color screen for clear display of functions and settings.
• High-quality knob potentiometers and extended stroke slide faders for precise control.

Figure 2: Visual representation of key features.

2. Safety Information

Please read and understand all safety instructions before operating this device. Retain this manual for future reference.

• Power Supply: Use only the specified power adapter. Ensure the voltage matches your local power supply.
• Ventilation: Do not block ventilation openings. Ensure adequate airflow around the unit to prevent overheating.
• Moisture: Keep the device away from water, rain, and high humidity. Do not operate with wet hands.
• Cleaning: Disconnect power before cleaning. Use a dry, soft cloth. Do not use liquid cleaners or aerosols.
• Servicing: Do not attempt to service this unit yourself. Refer all servicing to qualified personnel.
• Placement: Place the mixer on a stable, flat surface. Avoid placing it near heat sources or in direct sunlight.

3. Controls and Interfaces

Familiarize yourself with the various controls and connection points on your EX12 mixer.

Figure 3: Detailed view of mixer controls and interfaces.

Input Channels (1-12):

• MIC Input: XLR (Cannon) connector for microphones.
• LINE Input: 6.35mm (1/4 inch) jack for line-level instruments or devices.
• PAD: Attenuation switch for high-level inputs.
• GAIN Knob: Adjusts the input sensitivity for each channel.
• 3-Band EQ (HIGH, MID, LOW): Independent treble, mid, and bass adjustments for each channel.
• AUX Knob: Controls the send level to the auxiliary output.
• EFF Knob: Controls the send level to the internal effects processor.
• PAN Knob: Adjusts the stereo position of the channel.
• MUTE Button: Mutes the individual channel.
• SOLO Button: Isolates the channel for monitoring.
• Channel Fader: Adjusts the volume level of the individual channel.

Figure 4: Independent 3-band equalization controls.

Master Section:

• DSP Effects Display & Controls: Digital display showing the selected effect number (1-99) and controls for program selection and parameter adjustment.
• Graphic Equalizer: Dual 7-segment graphic equalizer for fine-tuning the main output.
• MP3/USB/Bluetooth Section: Controls for USB playback, recording, and Bluetooth pairing. Features an LCD screen for track information.
• Main Output Faders (L/R): Controls the overall volume of the main stereo output.
• Headphone Output: 6.35mm (1/4 inch) jack for monitoring.
• Phantom Power (+48V): Switch to provide power for condenser microphones.

Figure 5: 99 DSP effects display and controls.

Figure 6: Dual 7-segment graphic equalizer for main output.

4. Setup

Follow these steps to set up your Doslnlya EX12 mixer.

4.1 Power Connection

1. Ensure the mixer's power switch is in the OFF position.
2. Connect the provided power cable to the mixer's power input.
3. Plug the other end of the power cable into a suitable AC power outlet (100-240V).
4. Turn on the mixer using the power switch.

Figure 7: Power interface.

4.2 Connecting Inputs

Connect your microphones, instruments, and other audio sources to the appropriate input channels.

• Microphones: Use XLR cables to connect microphones to the MIC inputs. If using condenser microphones, activate the +48V Phantom Power switch.
• Instruments/Line Devices: Use 6.35mm (1/4 inch) TS or TRS cables to connect instruments (guitars, keyboards) or line-level devices (CD players, media players) to the LINE inputs.

4.3 Connecting Outputs

Connect your speakers, headphones, and recording devices.

• Main Output: Use XLR cables to connect the MAIN LEFT and RIGHT outputs to your power amplifier or active speakers.
• Headphones: Connect headphones to the 6.35mm (1/4 inch) PHONE jack for monitoring.
• Auxiliary Output: Use the AUX output to send a separate mix to stage monitors or external effects processors.

Figure 8: Connection method diagram.

4.4 USB Connection

The EX12 supports direct USB connection to a computer for recording and playback without requiring additional drivers.

1. Connect a USB cable from the mixer's USB port to your computer.
2. The computer should automatically recognize the mixer as an audio device.
3. You can now use your computer's audio software to record the mixer's output or play audio through the mixer.

Figure 9: USB connection for computer integration.

4.5 Bluetooth Pairing

Connect your smartphone or tablet wirelessly via Bluetooth for audio streaming.

1. Activate Bluetooth on your external device (smartphone, tablet).
2. On the mixer's MP3/USB/Bluetooth section, select the Bluetooth mode.
3. Search for available devices on your external device and select "EX12" (or similar name) to pair.
4. Once paired, you can stream audio from your device to the mixer.

Figure 10: Bluetooth wireless streaming setup.

5. Operating Instructions

5.1 Adjusting Channel Levels and EQ

1. Set all channel faders to their lowest position and the main output faders to unity gain (0dB).
2. Connect an audio source to a channel.
3. Slowly increase the channel's GAIN knob until the signal peaks appropriately on the channel's level indicator, avoiding clipping.
4. Adjust the 3-Band EQ (HIGH, MID, LOW) knobs to shape the tone of the individual channel.
5. Slowly raise the channel fader to the desired listening level.

5.2 Using DSP Effects

1. On the DSP effects section, use the PROGRAM knob to select one of the 99 available effects. The LCD screen will display the effect number.
2. Adjust the EFF knob on each channel to send the desired amount of that channel's signal to the effects processor.
3. Use the RETURN knob in the master section to control the overall level of the effects returning to the main mix.

5.3 Main Output Equalization

The dual 7-segment graphic equalizer allows for precise frequency shaping of the overall mix.

• Adjust the faders on the graphic equalizer to boost or cut specific frequency bands (e.g., 63Hz, 125Hz, 400Hz, 1kHz, 2.5kHz, 6.4kHz, 15kHz) for the left and right main outputs.
• Use this to compensate for room acoustics or to achieve a desired overall sound signature.

6. Maintenance

Proper maintenance ensures the longevity and optimal performance of your mixer.

• Cleaning: Regularly wipe the surface of the mixer with a soft, dry cloth. Avoid using abrasive cleaners or solvents.
• Dust Protection: When not in use, cover the mixer to protect it from dust and debris.
• Storage: Store the mixer in a cool, dry place away from extreme temperatures and direct sunlight.
• Fader and Knob Care: Avoid excessive force when operating faders and knobs. Keep them free from dirt and liquids.

7. Troubleshooting

If you encounter issues with your EX12 mixer, refer to the following common problems and solutions.

8. Specifications

Technical specifications for the Doslnlya EX12 12-Channel Bluetooth Mixer.

Figure 11: Product dimensions and additional specifications.

9. Warranty and Support

For warranty information and technical support, please refer to the contact details provided with your purchase or visit the official Doslnlya website. Keep your proof of purchase for any warranty claims.