1. Introduction
The Midiplus MIDI 16x16 is a professional-grade MIDI interface designed to provide extensive MIDI connectivity for your computer-based music production setup. Featuring 16 independent MIDI input ports and 16 independent MIDI output ports, this device allows for comprehensive routing and control of multiple MIDI devices. Each port is equipped with dedicated signal lights (red for input, green for output) to provide visual feedback on MIDI activity.
This interface is USB class-compliant, ensuring easy plug-and-play operation with both Mac and PC systems. It is powered directly via the USB bus, eliminating the need for an external power supply. The MIDI 16x16 is compatible with all standard MIDI software, making it a versatile addition to any studio.
2. Product Overview

Figure 2.1: Front view of the Midiplus MIDI 16x16 interface, showing the MIDI IN and MIDI OUT signal lights and the Midiplus logo.

Figure 2.2: Close-up front view highlighting the 16 red MIDI IN signal lights and 16 green MIDI OUT signal lights, along with the product branding.

Figure 2.3: Rear view of the Midiplus MIDI 16x16 interface, displaying the 16 MIDI IN ports, 16 MIDI OUT ports, and the USB 3.0 connection port.

Figure 2.4: Angled rear view showing the MIDI IN and OUT ports from a different perspective, emphasizing the compact design.

Figure 2.5: Another angled rear view, providing a clear look at the arrangement of the MIDI ports and the USB connection.
3. Setup Guide
3.1 System Requirements
- Operating System: Windows 10 (for USB 3.0 support), Mac OS (for USB 3.0 support), Windows (for USB 2.0), Mac (for USB 2.0).
- USB Port: Available USB 2.0 or USB 3.0 port.
- Software: Any MIDI-compatible software (DAW, sequencer, etc.).
3.2 Connecting the Interface
- Unpack the Midiplus MIDI 16x16 interface and the included USB cable.
- Connect one end of the USB cable to the USB port on the rear of the MIDI 16x16 interface.
- Connect the other end of the USB cable to an available USB port on your computer.
- The device is USB bus-powered and will automatically power on.
- Since the device is USB class-compliant, no additional drivers are typically required for most operating systems. Your computer should recognize the device automatically.
- Connect your MIDI devices (keyboards, synthesizers, drum machines, etc.) to the MIDI IN and MIDI OUT ports on the rear of the interface using standard MIDI cables. Ensure correct IN-to-OUT and OUT-to-IN connections between your devices and the interface.
4. Operating Instructions
4.1 MIDI Signal Indicators
The Midiplus MIDI 16x16 features dedicated LED indicators for each MIDI IN and MIDI OUT port, providing real-time visual feedback on MIDI activity:
- Red Signal Lights (MIDI IN): These lights illuminate when MIDI data is being received by the corresponding MIDI IN port. A blinking light indicates active data transmission.
- Green Signal Lights (MIDI OUT): These lights illuminate when MIDI data is being sent from the corresponding MIDI OUT port. A blinking light indicates active data transmission.
4.2 Software Configuration
Once connected, the Midiplus MIDI 16x16 will appear as multiple MIDI input and output devices within your music software (Digital Audio Workstation - DAW, sequencer, etc.).
- Open your preferred MIDI software.
- Navigate to the MIDI/Audio Setup or Preferences menu within your software.
- Locate the section for MIDI devices or MIDI ports.
- You should see "Midiplus MIDI 16x16" or similar entries listed for both input and output.
- Enable the specific MIDI input and output ports you intend to use for your connected MIDI hardware.
- Refer to your software's documentation for detailed instructions on configuring MIDI devices and routing.
Each of the 16 MIDI IN and 16 MIDI OUT ports operates independently, allowing you to assign different MIDI channels or devices to each port as needed by your setup and software.
5. Maintenance
- Cleaning: Use a soft, dry cloth to clean the exterior of the unit. Do not use liquid cleaners or abrasive materials.
- Storage: When not in use for extended periods, store the interface in a cool, dry place away from direct sunlight and extreme temperatures.
- Handling: Avoid dropping the unit or subjecting it to strong impacts.
- Ventilation: Ensure proper ventilation around the unit to prevent overheating. Do not block any vents.
- Cables: Regularly check USB and MIDI cables for any signs of damage. Replace damaged cables immediately.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not recognized by computer. |
|
|
| No MIDI signal (LEDs not lighting up). |
|
|
| Intermittent MIDI data. |
|
|
7. Specifications
| Feature | Detail |
|---|---|
| Model | MIDI 16x16 |
| MIDI Ports | 16 MIDI IN, 16 MIDI OUT |
| Connectivity | USB (USB 2.0 / USB 3.0 compatible) |
| Power | USB Bus Powered |
| Operating System Compatibility | Mac OS, Windows (USB 3.0 support for Win 10 and Mac OS) |
| Dimensions (L x W x H) | 483 x 206 x 60 mm (19 x 8.1 x 2.4 inches) |
| Weight | 2.3 kg (5.1 pounds) |
| Included Accessories | USB Cable |
| Supported Software | All MIDI software |
8. Support and Warranty
8.1 Technical Support
For technical assistance or further inquiries regarding your Midiplus MIDI 16x16 interface, please visit the official Midiplus website or contact their customer support. You may also find helpful resources and FAQs on the product's Amazon page or the Midiplus Store on Amazon.
8.2 Warranty Information
This product comes with a standard manufacturer's warranty. Please refer to the warranty card included with your product or the official Midiplus website for detailed terms and conditions regarding warranty coverage, duration, and claims procedures. Keep your proof of purchase for warranty purposes.





