1. Introduction
This manual provides essential information for the safe and efficient operation of your Blastking ULTRAMIX-8FX 8 Channel Analog Stereo Mixing Console. Please read this manual thoroughly before using the device to ensure proper setup, operation, and maintenance. Retain this manual for future reference.
2. Safety Instructions
Always observe the following basic safety precautions when using this equipment:
- Read all instructions before operating the product.
- Keep this manual for future reference.
- Heed all warnings on the product and in the operating instructions.
- Do not use this apparatus near water.
- Clean only with a dry cloth.
- Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.
- Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
- Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
- Only use attachments/accessories specified by the manufacturer.
- Unplug this apparatus during lightning storms or when unused for long periods of time.
- Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
3. Product Overview
The Blastking ULTRAMIX-8FX is an 8-channel analog stereo mixing console designed for various audio applications, offering high-quality sound processing and versatile connectivity. It features a robust design with intuitive controls for both live sound and studio environments.
Key Features:
- 8 Ultra Low-Noise & High-Headroom Input Channels
- High Quality Combo Connectors XLR / ¼”
- 7 band +/- 12dB Graphic Equalizer
- 24 Bit-40Khz FX Digital Processor with 24 Presets
- Dedicated +48V Phantom Power on Each Channel for Condenser Mics

Figure 3.1: Angled view of the Blastking ULTRAMIX-8FX mixing console, showcasing its compact design and control layout.
4. Setup
4.1 Unpacking
Carefully remove the mixing console from its packaging. Inspect the unit for any signs of damage that may have occurred during shipping. Retain the packaging materials for future transport or storage.
4.2 Connections
Before connecting any cables, ensure the mixer and all connected devices are powered off. Connect the power adapter to the mixer's power input and then to a suitable AC outlet.

Figure 4.1: Top-down view of the ULTRAMIX-8FX, illustrating the layout of input channels, EQ, effects, and main output controls.
- Input Channels: Connect microphones to the XLR inputs and line-level instruments or devices to the ¼” TRS/TS inputs on each channel.
- Phantom Power: For condenser microphones, activate the +48V phantom power switch for the respective channel. Ensure microphones are connected before engaging phantom power.
- Main Outputs: Connect your main speakers or amplifier to the MAIN OUT (XLR or ¼” TRS) connectors.
- Auxiliary Outputs: Use the AUX OUT for sending signals to external effects processors or monitor speakers.
- Headphones: Connect headphones to the PHONES output for monitoring.
- USB/Bluetooth: For digital audio playback, connect a USB drive or pair a Bluetooth device as per the operating instructions.

Figure 4.2: Rear panel of the ULTRAMIX-8FX, highlighting the power input, power switch, and caution labels.
5. Operating
5.1 Channel Controls
- GAIN: Adjusts the input sensitivity for each channel. Set this to achieve a strong signal without clipping.
- EQ (Equalizer): Each channel features a 3-band EQ (HIGH, MID, LOW) to shape the tone of the input signal.
- AUX: Controls the amount of signal sent from the channel to the auxiliary output.
- FX: Controls the amount of signal sent from the channel to the internal effects processor.
- PAN: Adjusts the stereo position of the channel signal (left to right).
- MUTE: Silences the channel output.
- CHANNEL FADER: Controls the overall volume level of the individual channel.
5.2 Effects Processor
The ULTRAMIX-8FX includes a 24-bit/40kHz digital effects processor with 24 presets. Use the FX controls to select and apply various effects like reverb, delay, and chorus to your audio.
- PROGRAM: Rotates through the 24 available effects presets.
- PARAMETER: Adjusts a specific parameter of the selected effect (e.g., decay time for reverb).
- FX LEVEL: Controls the overall output level of the effects processor.
5.3 Graphic Equalizer
A 7-band graphic equalizer allows for precise frequency shaping of the main mix, with +/- 12dB adjustment for each band.
5.4 Main Outputs and Monitoring
- MAIN FADER: Controls the overall volume of the stereo main mix.
- PHONES: Adjusts the volume for the headphone output.
- LEVEL METERS: Monitor the output level of the main mix to prevent clipping.
6. Maintenance
To ensure the longevity and optimal performance of your ULTRAMIX-8FX mixer, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the exterior of the mixer. Do not use liquid cleaners or solvents, as they may damage the finish or internal components.
- Storage: When not in use, store the mixer in a cool, dry place, away from direct sunlight and extreme temperatures. If possible, use the original packaging for protection.
- Ventilation: Ensure that the ventilation openings are not obstructed to prevent overheating.
- Cable Management: Avoid bending or pinching cables, especially the power cord, to prevent damage.
7. Troubleshooting
If you encounter issues with your Blastking ULTRAMIX-8FX, refer to the table below for common problems and solutions.
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound output | Power off; incorrect connections; faders down; MUTE engaged; faulty cable. | Check power supply and switch; verify all cable connections; raise channel and main faders; disengage MUTE; test with different cables. |
| Distorted sound | Input GAIN too high; output level too high; faulty cable or speaker. | Reduce input GAIN; lower main fader; check connected speakers/amplifiers; test with different cables. |
| Microphone not working (condenser) | +48V Phantom Power not engaged; faulty microphone or cable. | Engage +48V Phantom Power for the specific channel; test with a different microphone or cable. |
| No effects applied | FX send level too low; FX return level too low; incorrect effect selected. | Increase channel FX send; increase FX LEVEL; select a different effect program. |
| Hum or noise | Ground loop; faulty cable; interference from other electronics. | Ensure all equipment is on the same power circuit; use balanced cables; try isolating the mixer from other electronics. |
If the problem persists after attempting these solutions, please contact Blastking customer support.
8. Specifications
Technical specifications for the Blastking ULTRAMIX-8FX mixing console:
| Feature | Detail |
|---|---|
| Item Model Number | ULTRAMIX8FX |
| Number of Channels | 8 |
| Input Connectors | XLR / ¼” Combo |
| Phantom Power | +48V (Dedicated per channel) |
| Equalizer | 7-band Graphic EQ (+/- 12dB) |
| Digital Effects | 24 Bit-40Khz FX Processor with 24 Presets |
| Connectivity Technology | Bluetooth, USB |
| Power Source | Corded Electric |
| Product Dimensions | 17"D x 16.5"W x 17"H (43.18 cm D x 41.91 cm W x 43.18 cm H) |
| Item Weight | 14 pounds (6.35 kg) |
9. Warranty and Support
For warranty information and technical support, please refer to the documentation included with your purchase or visit the official Blastking website. Keep your proof of purchase for warranty claims.
For further assistance, you may contact Blastking customer service through their official channels.
