3.The MIDI Output of the Radium is connected to the MIDI In of a sound module. The audio output of the sound module can be plugged directly into a sound system, or into a mixer, which is then connected to a sound system.

In the setup pictured below, the Radium is being used as a MIDI controller as well as a MIDI interface, inputting MIDI data to the computer and its application software, and outputting MIDI to a sound module from which sounds will be produced. The Radium as a controller may also send MIDI information to an existing internal soundcard’s MIDI synthesizer or any installed software synthesizer, outputting the audio from the computer soundcard.

In this scenario, it may not be necessary to apply external power to the Radium. With the power switch set to “USB Power,” the Radium receives power from the USB port on your computer. It is recommended that you plug directly into the USB port on the computer. You may also choose to use power from batteries (Radium49 only) or an external power supply.

Additionally, the Radium may be used as a “standalone” keyboard controller, independent of the computer and its USB port. In this case, the Radium must receive power from a power supply, by switching the power setting on from the rear panel. Also, you will want to use the MIDI out port that is labeled “Keyboard.” A setup such as this may be used in a performance situation, or when you wish to use the keyboard without the computer.

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M-Audio RAD-050503 warranty
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RAD-050503 specifications

The M-Audio RAD-050503 is a powerful audio interface designed for musicians, producers, and sound engineers seeking high-quality recording and playback capabilities. This device is particularly notable for its versatility and high-performance features, making it an excellent choice for both home studios and professional environments.

One of the standout characteristics of the RAD-050503 is its exceptional audio quality, offering high-resolution audio capture at sample rates up to 192 kHz. This level of fidelity ensures that recordings are true to the original sound, preserving the nuances and subtleties of each instrument or voice. The device supports both 24-bit and 32-bit audio formats, providing flexibility for various recording requirements.

Equipped with multiple input options, the RAD-050503 includes XLR/TRS combo jacks that cater to microphones, guitars, and line-level sources. This flexibility makes it easy to connect different recording instruments without needing additional interfaces. The device also features phantom power, enabling the use of condenser microphones, which are essential for capturing high-quality vocal tracks.

For monitoring, the RAD-050503 provides high-output headphone outputs and balanced TRS main outputs. This ensures that users can achieve accurate sound representation during recording sessions, allowing for real-time monitoring without latency issues. The built-in zero-latency monitoring feature further enhances the recording experience by allowing musicians to hear their inputs directly through their headphones without delay.

In terms of connectivity, the RAD-050503 is USB-powered, providing a straightforward plug-and-play setup with minimal fuss. It is compatible with both Mac and Windows operating systems, making it accessible for a wide range of users. The interface is also equipped with MIDI I/O ports, allowing for seamless integration with MIDI devices, synthesizers, and controllers.

The rugged, compact design of the RAD-050503 makes it highly portable, making it suitable for musicians on the go. Users can easily transport it to live gigs or collaborate in different studio environments. The unit's thoughtful layout, featuring easy-to-use knobs and indicators, allows for intuitive operation, catering to both novice and experienced users alike.

In summary, the M-Audio RAD-050503 audio interface combines top-notch audio performance, versatile connectivity options, and user-friendly design, making it an excellent choice for anyone serious about recording and producing high-quality music.
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