M-Audio Oxygen 25 MKV MIDI Hardware Keyboard Controller User Manual

m-audio Oxygen 25 MKV MIDI Hardware Keyboard Controller Manual

Introduction

The m-audio Oxygen 25 MKV MIDI Hardware Keyboard Controller is a compact USB MIDI keyboard designed for music production, beat making, software instrument performance, and hands-on DAW control. Its 25 velocity-sensitive keys provide expressive playing in a space-saving format, making it suitable for home studios, mobile setups, desktop workstations, and beginners learning MIDI production.

The controller combines a playable keyboard with performance pads, assignable controls, transport functions, and DAW integration. Two banks of eight velocity-sensitive trigger pads support beat production and Note Repeat, while the control surface helps users manage software instruments, mixer functions, and recording workflows without relying entirely on a mouse and keyboard.

USB bus power simplifies installation because the controller can draw power directly from a computer or powered USB hub. The unit is compatible with common digital audio workstation software, although specific control features depend on the selected DAW and its MIDI configuration.

This MIDI keyboard is particularly useful for producers who need portability, electronic musicians who want fast access to drum pads and software instruments, and beginners who want a practical controller for learning music production. It is also a useful secondary keyboard for larger studios where desk space is limited.

Specifications and Key Features

• Product type: USB MIDI keyboard and DAW controller.
• Keyboard: 25 velocity-sensitive keys suitable for expressive software instrument performance.
• Performance pads: Two banks of eight velocity-sensitive trigger pads.
• Pad functions: Note Repeat and beat-production control.
• Power: USB bus-powered operation.
• Connectivity: USB connection to a compatible computer or powered USB hub.
• DAW control: Dedicated DAW mode with selectable control profiles for supported software.
• Preset operation: Preset and DAW functions allow users to switch between controller mappings and software-control modes.
• Dimensions: Approximately 19.3 × 9.6 × 3.7 inches, or 492 × 243 × 94 millimeters.
• Weight: Approximately 4 pounds, or 1.8 kilograms.
• Included items: USB cable, software download card, quick-start guide, and safety and warranty documentation.

Performance depends on the host computer, DAW settings, software instruments, and selected MIDI mappings. The controller sends MIDI data rather than producing sound by itself, so an instrument plug-in or external MIDI sound source is required for audible playback.

How to Set Up the m-audio Oxygen 25 MKV MIDI Hardware Keyboard Controller

1. Place the keyboard on a stable, dry, well-ventilated surface away from heat, moisture, and direct sunlight.
2. Connect the supplied USB cable to the controller and an available USB port on the computer. Use an onboard USB port or a powered USB hub when possible.
3. Switch on the computer and open the DAW or music application. The controller is designed for USB bus-powered operation and normally does not require a separate power adapter.
4. Open the DAW’s MIDI or controller settings and select Oxygen as the MIDI input. Enable the input for the track or instrument you want to play.
5. Load a software instrument, create or select a MIDI track, and play the keys to confirm that MIDI data is being received.
6. For DAW control, press the DAW/Preset button so the DAW mode is active. Press and hold the same button, then use the left or right buttons to select the appropriate DAW profile. Release the button to confirm.
7. Adjust velocity response, pad assignments, transport controls, and other mappings within the DAW or compatible controller software.

If the keyboard is not detected, reconnect the USB cable, try another USB port, close and reopen the DAW, and check that the correct MIDI input is enabled. Do not connect or disconnect equipment near liquids, and avoid forcing the USB connector into place.

Troubleshooting Common Oxygen 25 MKV Problems

Keyboard is not recognized

Confirm that the USB cable is firmly connected and that the computer is detecting the device. Try a different USB port, avoid an unpowered hub, and restart the DAW after reconnecting the controller. Check the M-Audio downloads area for the latest applicable firmware, controller software, and user documentation.

No sound from the keys

The Oxygen 25 MKV sends MIDI but does not generate instrument audio on its own. Load a software instrument, assign the Oxygen MIDI input to the track, enable monitoring or record-arm the track, and verify that the computer’s audio output is working.

DAW controls do not respond

Enter DAW mode and select the correct DAW profile. In the application’s controller settings, choose the Oxygen DAW or MIDI port as required. Some functions require a compatible control protocol or manual MIDI mapping.

Pads or knobs trigger unexpected functions

Check the active preset and MIDI assignments. Select the intended preset, reload the project, or restore the relevant mapping in the controller editor.

Support and warranty assistance

For service, contact M-Audio support through its official support portal. Have the controller’s serial number, proof of purchase, operating system, DAW version, and a clear description of the issue available. Warranty service may require proof of purchase and may differ by region.

Pros and Cons

Advantages

• Compact format: The 25-key design fits smaller desks and mobile production setups more easily than a full-size keyboard.
• Expressive control: Velocity-sensitive keys and pads support dynamic melodies, bass lines, drums, and sampled instruments.
• Integrated beat production: Sixteen pads and Note Repeat provide practical tools for drum patterns and rhythmic ideas.
• DAW integration: Dedicated DAW mode reduces the need to operate transport and selected software functions with a mouse.
• Simple power arrangement: USB bus power minimizes cable clutter and makes the controller convenient for travel.
• Useful for learning: The layout introduces beginners to MIDI routing, presets, software instruments, and controller mapping.

Limitations

• Limited key range: Twenty-five keys may require octave shifting for two-handed piano parts or wide arrangements.
• No built-in sounds: A computer, DAW, plug-in, or external MIDI sound source is needed to hear instruments.
• Software-dependent control: DAW functions vary according to the selected application and configuration.
• USB reliance: The controller is less suitable for completely computer-free performance than a keyboard with internal sounds.
• Best suited for: Producers, beat makers, electronic musicians, students, and home-studio users needing compact MIDI control.
• Consider another type of controller if: You need weighted piano keys, a larger keyboard range, standalone sounds, or extensive hardware connectivity.