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RME announces Fireface UCX II audio interface – Celebrating 25 Years of RME Audio

1st June 2021 10:15 am

RME Fireface UCX II - News Story - Synthax Audio UKRME announces new 40-Channel 192 kHz, Advanced USB Audio Interface with SteadyClock FS and Direct-USB-Recording (DURec).

Hemel Hempstead, UK – RME has announced the launch of the Fireface UCX II, the successor to the iconic Fireface UCX audio interface.

Featuring 40 channels of I/O and full stand-alone operation and recording – as well as RME’s next-generation SteadyClock FS digital clocking – the Fireface UCX II marks a new standard in the field of professional half-rack audio interfaces.

With the company also celebrating its 25th anniversary, the Fireface UCX II is a flexible and cutting-edge interface designed for high-precision studio and live recording, and represents 25 years of RME’s digital audio innovations.


25 years of RME Audio

Throughout its 25 year history, RME has been fully committed to a principle of flexibility – the more flexible a product, the more easily it can be adapted to new requirements. For company founder Matthias Carstens, this lies at the heart of RME’s success. “The Fireface UCX II makes us proud and enthusiastic as it represents a natural evolution of our product range.”

“Boasting up to 20 recording and 20 playback channels, SteadyClock FS, high-performance microphone inputs, built-in parametric EQ, direct recording to USB memory sticks and external hard drives (DURec), plus full stand-alone functionality, the brand-new Fireface UCX II truly represents the essence of freedom, flexibility, and passion. At present, no existing audio interface offers more connectivity and functionality in a half-rack package.”


RME Fireface UCX II - Main Image - Synthax Audio UK

Features and I/O

The Fireface UCX II’s front panel houses 2 x mic/line combo XLR preamps, 2 x digitally controlled line/instrument inputs and a headphone output (which can also double up as an unbalanced stereo output).

In parallel with the newly updated display, a large main volume encoder and set of buttons enable full control over the device, as well as level metering for all incoming and outgoing audio signals. The UCX II offers full stand-alone operation, with all functions controllable directly from the front of the unit – including EQ and Dynamics – as well as control over device states (clocking and sample rates) and DURec.

The rear panel features 10 x analogue balanced line inputs and outputs, MIDI I/O, ADAT I/O, AES/EBU and SPDIF I/O (via the included breakout cable), switchable word clock I/O on BNC, a mains power connection, plus a USB port for interfacing with a Mac, PC or Apple iPad.

A secondary USB connection (labelled ‘DURec‘) allows for the connection of USB memory sticks and external hard drives, and can alternatively be used for direct connection of RME’s optional ARC USB remote control.


RME Fireface UCX II - Perspective - Synthax Audio UKDirect USB Recording (DURec)

Thanks to the Direct USB Recording functionality (aka DURec), any input or output of the Fireface UCX II can be recorded directly to a USB storage device via the integrated DSP, allowing for full stand-alone recording and playback without the need to connect to a computer.

Individual tracks can be named in advance via RME’s TotalMix FX software mixer, with potential applications for DURec including the creation of simultaneous backup recordings in the studio; the recording of live performances and rehearsals; multi-track field recording; or the performing of virtual sound-checks at a live music venue (e.g. via playback of a previous night’s show).


SteadyClock FS – FemtoSecond Clocking Technology

The Fireface UCX II also features RME’s latest jitter rejection technology ‘SteadyClock FS’, which uses the same digital clocking technology found on RME’s award-winning ADI-2 Series.

SteadyClock FS allows for astonishingly high-quality AD and DA conversion, optimising both recording and playback quality, and replicating the soundstage to the fullest depth and clarity. With RME’s highly efficient jitter-suppression and filtering technology, self-jitter has been reduced all the way down to the range of femtoseconds, hence the name SteadyClock ‘FS’.


RME Fireface UCX II - Core Value - Synthax Audio UK

TotalMix FX, TotalMix Remote & DIGICheck

The Fireface UCX II comes with the TotalMix FX DSP mixer offering comprehensive level metering, routing and monitoring options. EQ and Dynamics are available on every input and output channel, as well as Reverb and Delay FX sends for enhanced latency-free monitor mixes.

A free companion app – TotalMix Remote – allows for full control of the hardware mixer and effects section of the Fireface UCX II via a network-connected PC, Mac or Apple iPad, including wirelessly over Wi-Fi. All settings are mirrored and updated in real-time – the entire mixing state, the complete routing, all FX settings and level meters.

In addition to TotalMix, RME’s DIGICheck Analyzer is a free suite of audio analysis tools that provides Windows and Mac users with professional measurement and analysis of all digital data feeds in both directions, and with maximum precision.

The set of tools offered by DIGICheck includes comprehensive multi-channel level metering (peak and RMS); a 30-Band spectrum/frequency analyser, plus correlation meter and vectorscope; a loudness metering tool for checking against the IT 1770 / EBU R128 standards commonly found in broadcast; and a Surround Audio Scope, for surround sound level metering with extended correlation analysis, ITU weighting and ITU summing.

The RME Fireface UCX II is available to pro-order now and expected to begin shipping in July 2021.


5-Year-Warranty-Badge - Synthax Audio UK

5 Year Warranty (UK Only)

Over the past 20 years, the word ‘reliability’ has become synonymous with the RME Audio brand, thanks to both the exceptional build quality and the now industry-renowned, rock-solid drivers.

For this reason, we are happy to offer all of our UK customers a complimentary 5 year warranty on all RME products, when purchased either from ourselves, or from one of our authorised UK dealers, and remain the only interface manufacturer to offer this at no extra cost.

To activate your 5 year warranty, simply register your RME device with us within 30 days of purchase via our warranty page.

To ensure you are buying your device from a UK-based retailer, please check our list of authorised UK dealers before purchase.


RME-Logo - Synthax Audio UKIf you’d like to know more about any of RME’s audio interfaces, soundcards, AD/DA Converters or microphone preamps, give us a call on 01727 821 870 to speak to one of our team or to arrange a demo.
You can also contact us here.