Important notice:
We have deliberately chosen NOT to include a USB or MIDI cable, as customers often already have suitable cables, and individual requirements regarding cable length, connector type, and shape vary greatly. Additionally, we want to avoid placing an unnecessary burden on the environment by including a cable that may not be suitable.
Please use an existing cable or purchase a High-Speed USB-C to USB-C or USB-C to USB-A cable that is best suited for your application. USB-C to USB-A adapter plugs also work with USB-C-only cables if the host computer or hub does not have a USB-C port.
Overview
| 1 | Headphones volume control. |
| 2 | Headphones channel switch. |
| 3 | Headphones out. |
| 4 | Stereo audio out ports 1-4 (1/2 – 7/8). |
| 5 | MIDI out ports 1 and 2. TRS type A. |
| 6 | MIDI in port. TRS type A/B auto sensing. |
| 7 | Stereo audio in ports 1-8 (1/2 – 15/15). |
| 8 | USB C connector. USB 2.0 High Speed compatible. |
| 9 | Satus LEDs. |
| 10 | Synthetic rubber strips. |
| 11 | 3d printed frame. |
Manual
The MAT 16X8 was primarily developed for use in mobile, hybrid setups for live musicians and DJs. It offers a wide range of audio inputs and outputs, MIDI, and an adjustable headphone amplifier. This allows for the integration of analog and digital sound sources in an unprecedentedly compact and lightweight form factor.
With 16 input and 8 output channels, it enables a wide range of applications when connected to a computer or tablet, such as a digital mixer, DJ setup, multi-channel sound reinforcement, digital effects unit, and more.
The design of the MAT 16X8 is stripped down to the essentials without compromising on quality. The high-quality analog-to-digital converters provide a wide dynamic range and feature very low self-noise. The special design of the circuit board housing saves space, weight, and resources, yet remains highly robust.
Setup:
The MAT 16X8 connects to a computer, laptop, or tablet via the USB port. The connection is USB 2.0 High Speed compatible and allows the use of adapter cables with USB-A connectors. Since individual requirements for the cable to be used vary greatly (length, connector type, and shape), we have decided not to include a cable for the sake of the environment. Both data and power are transmitted via this single cable. Thanks to USB Audio 2.0 compatibility, the MAT 16X8 works with a wide range of devices running Windows, macOS, iOS, or Linux. Many standalone music production systems are also supported. If the system supports USB Audio 2.0 class-compliant audio interfaces, it will most likely work with the MAT 16X8. For Windows, an ASIO driver can be downloaded from this website to achieve optimal performance.
After connecting the MAT 16X8 to the computer, one of the two red LEDs lights up. It appears as an audio device in the corresponding software or in the system. If it is activated in the system for audio input and output, the second LED also lights up. The sample rate can be set within a range of 41.1 kHz to 96 kHz. Audio data is always output at 24-bit resolution. The achievable round-trip latency depends on the set buffer size and the computer’s processing speed. With appropriate settings, latencies below 4 ms can be achieved, but this must be determined individually for each configuration.
The MAT 16X8 always outputs the full signal level at outputs 1-4. The volume must be adjusted on the computer. Therefore, when connecting the device, ensure that no signal is being output and adjust the output volume via software or on the connected amplifier.
The headphone jack has its own volume control (1). Be careful not to set this too loud to avoid hearing damage. Always turn the volume control all the way down before connecting and putting on headphones, and then carefully turn it up. Use the switch (2) to select whether the headphones output channels 1/2 or 3/4.
Designed to enable the connection of many analog audio devices in the most compact form factor possible for mobile use, it allows analog audio devices such as synthesizers or drum machines to be connected to a computer or mobile device in the smallest and lightest form factor. It supports 8 stereo inputs (16 channels) and 4 stereo outputs (8 channels), as well as MIDI In and Out via an Audio Class 2.0-compliant USB interface. The consistent use of 3.5mm mini-jack sockets enables this compact and lightweight form factor. Many devices, especially small ones, can be connected directly using a TRS mini-jack cable. For larger devices, a wide variety of adapter cables are available on the market. The MAT deliberately omits additional preamplifiers and operates by default with audio level signals of 2.1 V RMS (+/- 2.5 V)*. Since the signals enter the high-quality converters unaltered, a very low noise floor is achieved.
*Future firmware versions may expand or configure this range as needed.
Driver
You can download an ASIO driver for Windows operating systems here:
(Version 6.16.0 – 5MB)
Specifications
- 16 in channels (8 stereo mini jacks).
- 8 out channels (4 stereo mini jacks).
- 24bit resolution.
- Up to 96kHz sampling rate.
- Latency down to 3.7 ms round trip*. 1ms input and 1.5ms output.
- USB Audio Class 2.0 compliant.
- TRS-A/B Midi in auto-sense and 2 TRS-A Midi out (independent ).
- Bus powered.
- High quality ADCs with up to 110dB signal to noise ratio.
- Very low noise floor (Direct in, no preamps).
- Headphone amp. Pre-listening to ch 1/2 or 3/4.
- High quality mini jacks.
- Small and lightweight: 222 x 60 x 11 mm, 135g.
- Expandable to 32 in and 24 out channels with an additional board**.
- Optimized for usage with iDevices.
- Works with iOS, Linux, MacOS and Windows***.
* Tested on iPad Air (M1) with 24bit, 96kHz sampling rate and 32 sample buffer size
** Planned feature. Due to bandwidth limitations, the sampling rate will be max. 48kHz.
*** To use all features, an ASIO driver for Windows needs to be installed.
1. Product Identification
| Product Name | MAT 16X8 |
| Model | MAT 16X8 |
| Product Type | USB 2.0 Audio & MIDI Interface (Bus-Powered) |
| Manufacturer | MAT Modular Audio Tools GmbH |
| Address | Gollierplatz 5, 80339 Munich, Germany |
| Website | www.modularaudiotools.com |
2. Technical Specifications
2.1 General
| Audio Channels | 16 inputs / 8 outputs (16×8) |
| Bit Depth | 24 bit |
| Sample Rate | Up to 96 kHz |
| Round-Trip Latency | Down to 3.7 ms (tested on iPad Air M1, 24 bit / 96 kHz, 32 sample buffer) |
| USB Standard | USB Audio Class 2.0 / USB 2.0 High Speed |
| USB Connector | USB-C |
| Power Supply | Bus-powered via USB (5 V) |
| Power Consumption | Max. 2 W (400 mA) |
| Dimensions (W × D × H) | 224 × 62 × 12 mm |
| Weight | 135 g |
2.2 Audio Inputs
| Number of Inputs | 16 channels (8 stereo pairs) |
| Connectors | 8 × 3.5 mm TRS mini jack (stereo) |
| Signal Level | Line level (no preamps – direct in) |
| Input Voltage | 2.1 V RMS (±2.5 V absolute) |
| Input Impedance | 10 kΩ |
| Signal-to-Noise Ratio (ADC) | Up to 106 dB SNR (ADC spec) |
2.3 Audio Outputs
| Number of Outputs | 8 channels (4 stereo pairs) |
| Connectors | 4 × 3.5 mm TRS mini jack (stereo) |
| Output Voltage | 2.1 V RMS (±2.5 V absolute, DC coupled) |
| Output Impedance | > 5 kΩ (load) |
| Signal-to-Noise Ratio (DAC) | Up to 112 dB SNR (DAC spec) |
2.4 Headphone Output
| Connector | 1 × 3.5 mm TRS mini jack (stereo) |
| Output Voltage | 2.1 V RMS |
| Output Impedance | 15 kΩ |
| Output Power | 50 mW |
| Monitoring Selection | Switchable: Channels 1/2 or Channels 3/4 |
| Level Control | Volume knob |
2.5 MIDI
| MIDI Input | 1 × 3.5 mm TRS mini jack (TRS-A / TRS-B auto-sense) |
| MIDI Output | 2 × 3.5 mm TRS mini jack (TRS-A standard, independent usable) |
2.6 Environmental Conditions
| Operating Temperature | 0 °C to +40 °C |
| Storage Temperature | −40 °C to +60 °C |
| Max. Storage Humidity | 60 % RH (non-condensing) |
| Indoor Use Only | Yes |
3. System Requirements & Compatibility
The MAT 16X8 is USB Audio Class 2.0 compliant and connects to any device supporting this standard.
| iOS (iPad, iPhone) | Class-compliant — no driver required |
| macOS | Class-compliant — no driver required (Core Audio) |
| Linux | Class-compliant — no driver required |
| Windows | Driver required for full functionality. Free driver available for download |
| USB Host Requirement | USB Audio Class 2.0 compatible host |
4. Package Contents
- 1 × MAT 16X8 USB Audio & MIDI Interface
- 1 × Fabric carrying pouch
5. Intended Use
The MAT 16X8 is designed as a portable multi-channel USB audio and MIDI interface for use with synthesizers, drum machines, modular systems, and other electronic instruments and effects units. It is intended for connection to an Audio Class 2.0 compatible device (tablet, smartphone, or computer) for live performance, studio recording, mixing, and similar audio production purposes.
Typical applications with specific 3rd party software and host systems include:
- Mobile live performance mixer with effects chain
- Hybrid mixer for hardware synthesizers and virtual instruments
- Multi-channel studio interface and audio recorder
- Multi-channel loop station
Not intended for:
- Use as a microphone preamplifier (no onboard preamp; an external preamplifier is required for microphone connection)
- Use at Eurorack modular signal levels without appropriate level adaptation
- Outdoor or wet-environment use
- Any safety-critical, medical, or industrial application
6. Safety Instructions
Please read all instructions carefully before use. Retain this document for future reference.
6.1 General
- Use indoors only. Do not expose the device to rain, moisture, dust, or excessive humidity.
- Do not operate the device near water or other liquids. Prevent condensation — if the device has been moved from a cold to a warm environment, allow it to reach ambient temperature before switching it on.
- Do not place the device near heat sources such as radiators, stoves, amplifiers, or other heat-generating equipment.
- Do not block any ventilation openings. Ensure adequate airflow around the unit.
- Do not install in a confined space such as a bookcase or similar enclosure.
- Do not place open flame sources, such as lit candles, on or near the device.
- Never insert foreign objects into the device enclosure.
- Do not place containers with liquids on or near the device.
6.2 Power Supply (USB Bus-Powered)
- The MAT 16X8 is powered exclusively via its USB-C connector. No external mains power supply is required or used.
- Use only the provided USB cable or a suitable, standards-compliant USB cable rated for the device’s power requirements (5 V / max. 400 mA).
- Ensure the USB host device (computer, tablet, hub) can supply sufficient bus power (min. 0.5 A at 5 V via a USB 2.0 High Speed port).
- Protect the USB cable from being walked on, bent sharply, or pinched.
- Disconnect the device from the USB host when not in use for extended periods.
6.3 Liquid and Physical Damage
- If liquid is spilled on or inside the device, disconnect it from the USB host immediately. Do not reconnect until you are certain the device is completely dry. If in doubt, consult a qualified technician.
- If the device has been dropped or physically damaged, discontinue use and contact MAT Modular Audio Tools GmbH or an authorised repair centre before further operation.
6.4 Hearing Safety
- This product, used in conjunction with audio amplifiers, headphones, or earphones, can produce loud sound levels.
- Always start at low volume settings and increase gradually.
- Mute your audio system before connecting or disconnecting the device.
- Avoid prolonged exposure to high volume levels. Excessive sound pressure levels can cause permanent hearing damage.
- Use headphones responsibly and in accordance with the headphone manufacturer’s safety guidance.
6.5 Cleaning
- Disconnect the device from the USB host before cleaning.
- Clean the device with a dry cloth only. Do not use damp cloths, solvents, abrasive cleaners, or any other liquids, as these may damage the device.
6.6 Connections
- Only connect standard, commercially available, undamaged cables compliant with applicable standards.
- Never exceed the permissible input voltages specified in the technical data.
- Avoid short-circuiting the outputs.
- Use only accessories and peripherals specified or approved by the manufacturer.
- Strictly avoid shearing force to the cables as this may damage the ports. Always transport unplugged.
6.7 Maintenance and Repair
- There are no user-serviceable parts inside the device.
- Do not attempt to open or modify the device. Opening the enclosure will void the warranty.
- Refer all servicing to MAT Modular Audio Tools GmbH or qualified service personnel.
- Schematics and spare parts may be made available upon request to support repairability.
7. Regulatory Compliance & Certifications
7.1 CE Marking
The MAT 16X8 bears the CE marking, indicating conformity with all applicable EU directives and regulations, including:
- EMC Directive 2014/30/EU
- RoHS Directive 2011/65/EU and Amendment (EU) 2015/863
- WEEE Directive 2012/19/EU
- REACH Regulation (EC) No 1907/2006
7.2 FCC Compliance (USA)
This device has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
- This device may not cause harmful interference.
- This device must accept any interference received, including interference that may cause undesired operation.
Important: Changes or modifications not expressly approved by MAT Modular Audio Tools GmbH could void the user’s authority to operate the equipment.
Declaration of Conformity: The full text of the EU and FCC Declaration of Conformity is available here:
7.3 RoHS Compliance
The MAT 16X8 complies with the RoHS Directive 2011/65/EU (as amended by 2015/863/EU) restricting the use of hazardous substances in electrical and electronic equipment.
8. Warranty & Statutory Rights
8.1 Statutory Warranty (EU)
Consumers in the European Union are entitled to a statutory warranty period of two (2) years from the date of delivery, as required by EU Directive 2019/771 on the sale of goods. This statutory right is provided by the retailer from whom you purchased the product.
This statutory right covers defects in conformity that existed at the time of delivery. To exercise your statutory warranty rights, please contact your point of purchase (retailer) in the first instance.
8.2 Manufacturer Support
The MAT 16X8 is sold exclusively through authorised retailers. For product-related questions, please contact your retailer first. For technical support or repair inquiries that cannot be resolved by your retailer, you may contact the manufacturer directly:
MAT Modular Audio Tools GmbH
Gollierplatz 5, 80339 Munich, Germany
www.modularaudiotools.com
9. Disposal & Recycling (WEEE)
⚠ This product is subject to the WEEE Directive (2012/19/EU). Do not dispose of this product with unsorted household waste.
- Return the device to a licensed collection point for the recycling of waste electrical and electronic equipment (WEEE/EEE).
- The crossed-out wheelie bin symbol on the product indicates that it must be separately collected and recycled.
- Incorrect disposal may have a negative impact on the environment and human health due to potentially hazardous substances associated with electronic equipment.
- Packaging materials (cardboard, fabric) should be disposed of in appropriate local recycling streams.
WEEE Registration (Germany): DE53268378 (registered under the ElektroG)
For more information on local collection points, contact your local municipal authority or waste management service.
10. Trademark Notices
Apple, iOS, iPad, iPhone, and macOS are trademarks of Apple Inc., registered in the U.S. and other countries. Windows is a registered trademark of Microsoft Corporation in the United States and/or other countries. Linux is the registered trademark of Linus Torvalds. All other product names, trademarks, and registered trademarks are the property of their respective owners.
MAT 16X8 and Modular Audio Tools are trademarks of MAT Modular Audio Tools GmbH, Munich, Germany.
11. Legal Disclaimer
MAT Modular Audio Tools GmbH accepts no liability for any loss or damage suffered by any person who relies wholly or in part upon any description, photograph, or statement contained herein. Technical specifications, appearances, and other information are subject to change without notice. This document does not constitute legal advice.
Document Version 1.0 | MAT Modular Audio Tools GmbH, Gollierplatz 5, 80339 Munich, Germany