Edirol UM-550

4.5 (3)

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Page last updated Feb 14, 2026

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Description

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The Edirol UM-550 is a versatile 5 x 5 USB MIDI interface that seamlessly bridges the gap between your creative ideas and your studio setup. Designed for musicians who juggle multiple MIDI devices, this compact interface ensures that your MIDI data flows smoothly and efficiently, thanks to its cutting-edge HDMR (Hardware Direct MIDI Routing) technology. Whether you're orchestrating complex arrangements or experimenting with new sounds, the UM-550 delivers near-zero latency, making it an essential tool for any studio environment.

This device is not only a reliable USB MIDI interface but also functions as a stand-alone MIDI patcher, giving you the freedom to connect and control up to 80 channels without the need for a computer. The user-friendly design includes LED switches on the front panel, providing an intuitive and comfortable patching experience. With features like MIDI message filtering, merging, and cable checking, the UM-550 offers comprehensive MIDI utility functions that simplify your workflow.

Additionally, the UM-550's robust design allows it to be rack-mounted or used as a desktop device, making it adaptable to various studio configurations. If your demands grow, connect up to four UM-550 units to manage a whopping 320 MIDI channels, ensuring that your studio setup remains flexible and future-proof.

Key Features:

5-in, 5-out USB MIDI Interface for controlling up to 80 channels
Stand-alone MIDI patcher functionality
HDMR technology for low latency and quick patching
Fast Processing Technology (FPT) for stable MIDI data transmission
Front panel LED switches for easy operation
MIDI utilities: Merge, MIDI Message filter, Preview, Cable check
Compact, adaptable design for desktop or rack-mounting
Scalable setup with support for connecting up to 4 units for 320 channels

Reviews

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Owner Insights

We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about Edirol UM-550.

Features and functionality

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The Edirol UM-550 offers standalone routing capabilities, allowing seamless transition between DAW and live setups without reconfiguring connections.
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The Edirol UM-550 allows standalone sequencing, patching, and filtering without a computer, with full USB I/O on all five channels and low latency performance.
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Build quality

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The UM-550 is praised for its robust construction, akin to a tank, contributing to its durability and long-term reliability.
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User experience

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Owners appreciate the ability to configure routing directly from the front panel, enhancing usability during live performances without needing a computer.
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Comparisons

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While not as common as the MOTU MIDI Express XT, the UM-550 is recognized for its exceptional MIDI timing and build quality, making it a sought-after choice despite being out of production.
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Unlike the Roland A-880 which offers zero computer integration, the UM-550 also provides direct face programmability and USB integration for enhanced control.
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Value and pricing

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Despite being discontinued, the UM-550 is highlighted for its performance and durability, which can justify the effort required to find it on second-hand markets.
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Use cases and applications

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Ideal for users needing standalone MIDI management, the UM-550 efficiently handles beat clock and sequencing tasks without computer dependency.
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