Pricing and availability
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Average Price: $1,537
High-end/Boutique
$150
$501+
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Price History
Based on price data from 7 merchants for "RME Fireface UCX II". Prices shown reflect NEW condition. Tracking began Apr 2, 2026.
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Description
Introducing the RME Fireface UCX II, a highly integrated, pro audio solution that offers studio-quality in an ultra-compact format. This remarkable USB 2.0 audio interface is designed for both studio and live recordings, continuing RME's long tradition of delivering advanced interfaces in compact designs.
Excelling with the highest feature-to-space ratio, it packs what would usually require multiple 19-inch panels into a half-rack size unit. With its impressive 20-in/20-out capability, the Fireface UCX II is a powerhouse that effortlessly integrates into any studio setup.
The Fireface UCX II is equipped with two reference-quality microphone preamps, delivering pristine audio for your recordings. Its analog, digital, MIDI, and word clock connectivity ensure easy integration into your existing gear. The DC-coupled outputs allow you to send CV/gate voltage control information to modular synths and other studio hardware.
The interface's advanced SteadyClock FS technology ensures ultra-stable clocking, reaching jitter specs as low as a femtosecond. This means your recordings will exhibit unmatched timing precision.
The Fireface UCX II also includes TotalMix FX, giving you a fully flexible mixer with 20 input, 20 software playback, and 20 hardware output channels. Each channel comes with a 3-band EQ, low-cut filter, echo, reverb, compressor, expander, and auto level, allowing you to track with the effects and processing you need, without ever having to worry about latency or your computer's processing power.
Key Features:
- 20-in/20-out USB 2.0 audio interface
- Two digitally controlled microphone preamps for reference-quality recording
- Ample analog, digital, MIDI, and word clock connectivity
- DC-coupled outputs for sending CV/gate voltage control information
- Ultra-stable clocking with SteadyClock FS technology
- Fully flexible mixer with 20 input, 20 software playback, and 20 hardware output channels with TotalMix FX
- Onboard metering with peak and RMS calculation
- DURec port for direct recording to a thumb drive or external hard drive
- Compatible with RME’s ARC USB remote controller (sold separately)
- Includes a 3-month subscription to Antares Autotune Unlimited
Owner's manual
RME Fireface UCX II User ManualProduct specs
| Computer Connectivity | USB 2.0 |
| Form Factor | Rackmount |
| Simultaneous I/O | 20 x 20 |
| Number of Preamps | 2 x mic |
| Phantom Power | Yes |
| A/D Resolution | Up to 24-bit/192kHz |
| Effects | 3-band EQ, Low-cut Filter, Reverb, Compressor, Expander, Auto Level |
| Analog Inputs | 2 x 1/4" (line/instrument), 2 x XLR-1/4" combo (mic/line), 4 x 1/4" (line) |
| Analog Outputs | 6 x 1/4" (line) |
| Digital Inputs | 1 x Optical Toslink (ADAT) |
| Digital Outputs | 1 x Optical Toslink (ADAT) |
| Headphones | 1 x 1/4" |
| MIDI I/O | In/Out |
| USB | 1 x Type A, 1 x Type B |
| Clock I/O | 1 x Word Clock |
| Other I/O | 1 x 9-pin (AES/EBU, S/PDIF) |
| OS Requirements - Mac | OS X 10.9.5 or later |
| OS Requirements - PC | Windows 7 SP1 or later |
| Rack Spaces | 1U |
| Power Supply | 12V DC power supply (included) |
| Height | 1.73" |
| Width | 8.5" |
| Depth | 5.1" |
| Weight | 2.0 lbs. |
FAQs
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What are the main connectivity options for the RME Fireface UCX II?
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The RME Fireface UCX II features USB 2.0 connectivity and offers a range of inputs and outputs, including 2 mic preamps, 4 analog inputs, 6 analog outputs, ADAT I/O, MIDI I/O, and word clock connections.
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Is the RME Fireface UCX II compatible with both Mac and PC?
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Yes, the RME Fireface UCX II is compatible with both Mac OS X 10.9.5 or later and Windows 7 SP1 or later, supporting driver-based USB2 and Class Compliant modes.
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Does the RME Fireface UCX II support high-resolution audio?
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The RME Fireface UCX II supports high-resolution audio with A/D conversion up to 24-bit/192kHz, ensuring professional-quality sound for recording and playback.
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What built-in effects does the RME Fireface UCX II offer?
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The RME Fireface UCX II includes built-in effects such as a 3-band EQ, low-cut filter, reverb, compressor, expander, and auto level for versatile audio processing.
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Can the RME Fireface UCX II be used in a rackmount setup?
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Yes, the RME Fireface UCX II is designed for rackmount use and occupies 1U of rack space, making it suitable for studio environments.
Videos
Audio University
Is Audio Interface Latency Ruining Your Recordings?
Is Audio Interface Latency Ruining Your Recordings?
Audio University
Does the RME interface sound $1300 Better than the Audient iD14?
Bolo Da Producer
RME Fireface UCX II - Gearspace @ Superbooth 2021
Gearspace Forum
Introducing the New RME Fireface UCX II
MusicGearz
Reviews
PROS
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Crystal clear sound enhances recording quality
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Perfect I/O count for diverse mixing needs, including 5.1
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High-quality build and materials, including control knob
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Easy and stable driver installation for various DAWs
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Notable improvement in USB performance over previous interfaces
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TotalMixFX offers excellent routing options and is user-friendly
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Standalone capability ideal for live performances and gigs
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Noticeable low latency, even with lower buffer settings
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Clean, high headroom preamps and superior AD/DA conversion
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AES addition significantly improves sound quality with compatible speakers
CONS
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Initial input gain was insufficient, requiring driver update for improvement
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Effects quality may not match high-end DAW plugins, better used for tracking
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Some found TotalMix FX software initially challenging to navigate
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Cable length included may be too short for some setups, requiring additional purchase
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Daisy chaining older RME interfaces with UCX II not supported, complicating integration
Owner Insights
We analyzed real musician discussions from forums and Reddit to find what players love, question, and tweak about RME Fireface UCX II.
Comparisons
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Users transitioning from a Scarlett 2i2 to an RME UCX II note a significant improvement in playback clarity and depth.
Source -
Owners transitioning from Audient interfaces report a significant improvement in handling high gain without clipping or distortion issues.
Source -
The UCX II has a 1 Ω headphone output impedance compared to the UFX II's 2 Ω, though this difference is generally inaudible to most users.
Source -
The UFX II offers lower THD (0.00032% vs. UCX II's 0.0004%) and higher SNR (118 dB vs. UCX II's 115 dB), but users doubt these are perceptible.
Source
Features and functionality
Software and compatibility
Use cases and applications
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The UCX II is favored for its extensive I/O options, supporting complex home studio setups effectively.
Source -
Those with minimal I/O needs and occasional hardware use find the UCX II ticks all necessary boxes, especially for in-the-box work with some hardware synths and instrument recording.
Source
User experience
Setup and maintenance
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TotalMix can be set to "simple mode," allowing for basic interface functionality without complex routing.
Source
Critic Reviews
5.0 out of 5
Based on 2 Reviews and 3 Ratings
57
The best choice for electronic music producers
As an electronic music producer, I've tried countless audio interfaces over the years—but nothing comes close to the RME Fireface UCX II. From the moment I plugged it in, I could hear the difference: crystal-clear sound, zero fuss, and rock-solid performance, even in the most demanding sessions.
94
Awesom :)
RME Fireface UCX II audio interface is awesome. Adding capability of RME TotalMix FX to any daw, I could do anything that I want. Matrix view of TotalMix FX is so easy to use, easy to loopback, now it support Sonarworks SoundID Reference speak profile Room EQ :) Load Room EQ preset from TotalMix, guess there is no latency :)
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Used With
Based on how musicians on Equipboard use RME Fireface UCX II, it is most commonly used with the following gear.
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