RME Fireface UFX review

The UFX adds USB, DSP and a host of goodies to this interface range

  • £1649
  • $2499
We had no problems using the small colour screen on the UFX.

MusicRadar Verdict

A convergence of flexibility, usability and sound which even RME will find hard to surpass.


  • +

    Stunning routing flexibility. High AD/DA quality. Standalone operation.


  • -

    Stunning routing flexibility. High AD/DA quality. Standalone operation.

MusicRadar's got your back Our team of expert musicians and producers spends hours testing products to help you choose the best music-making gear for you. Find out more about how we test.

The new flagship Fireface UFX may have dropped the 800MBit/s bus speed of its forerunner to the more universal 400MBit/s, but the form has only been added to and upgraded.

The host interfacing has been augmented with USB 2.0, which more or less levels in performance with FW400, and there are four more channels of I/O available taking the total to 60 channels. Add to this a colour display for metering and hardware control as well as enhanced standalone capabilities and you start to wonder how much RME can really pack into a 1U rackmount.

"It can do anything one can imagine except make toast (that should follow in a firmware update soon)."

Like the Fireface 800, the UFX sports the signature light blue and silvered exterior which is, as ever, neat and clearly laid out while feeling sturdy and well built. The protective hoop handles on the front state the very German reliability that, for us, has accompanied all the RME products we've ever tried.

The front of the unit houses four preamp inputs for mic, line and hi-Z instruments, all of which are digitally controlled through the front panel interface or the software. The two independently configurable headphone outputs follow on to the right as do the second set of MIDI I/O and USB socket for flash and hard drives to be used as recording storage, though this function has yet to be incorporated into the firmware.

The rear of the unit hosts the remaining I/O: eight TRS line inputs, two XLR and six TRS line outputs, AES/ EBU on XLR, two sets of ADAT optical (the second can also function as optical S/PDIF), BNC wordclock sockets, the first set of MIDI I/O, FW400/USB 2.0 connections and a socket for the RME remote control (for level/dim and storage/recall).

Display and control

The new colour display seems a bit small at first but in use we encountered no problems monitoring large track counts on the main metering page. In conjunction with two encoders and volume knob the display doubles as a menu for setting all channel parameters.

The only functions not available through the front panel are routing (carried out in the TotalMix software) and global hardware settings such as latency and clocking. Though this hardware-based control is useful and surprisingly easy to get to grips with it really comes into its own when the unit is used standalone.

There are six user and two factory setups that can be stored in the UFX so a variety of states can be recalled without need for a host connection. This allows the UFX to provide multiple routing, monitoring and AD/DA conversion solutions outside of the standard computer-based environment.

Issuing this new Fireface with both FW400 and USB 2.0 makes a whole load more sense than just making a USB version, especially as there is more on offer here than the previous model. Having trialled the UFX extensively using both interfaces we found the FW400 performance less CPU intensive (around 10% lower) than the USB, but this may have more to do with our chipsets than the Fireface itself.

Our time with the UFX using both interfaces was flawless: no crashes, glitches or hangs even when running high track/plug-in count mixes.


The Fireface UFX sees an expansion in the DSP capabilities for the series with the addition of effects for all inputs and outputs (see UFX DSP box), though powering the routing management of the TotalMix system is its primary purpose.

From within the TotalMix software the user can set up absolutely any combination of routings between the hardware inputs and outputs as well as the playback channels from DAWs. As well as the I/O faders and mixer matrix there is also a Control Room section to manage multiple monitor paths and headphone mixes.

TotalMix is too comprehensive to describe here in detail but in short it can do anything one can imagine except make toast (that should follow in a firmware update soon): fader/mute/solo group assignments, copy and paste of submixes between hardware outputs, loopback of outputs for group/mix capture, MIDI remote control (using Mackie HUI or MIDI CC protocols), Mid/Side processing on any stereo inputs/software playback channels, Cue function for checking any hardware output without disturbing the mix and mono/stereo switching for all channels.

Oh yeah, there is unlimited undo/redo for all changes within TotalMix and full snapshot storage/recall.

Conversion quality

RME pride themselves on sound quality, especially in relation to price. Here the UFX does not disappoint. RME have continued to refine their AD/DA and preamp circuits as well as their software and DSP.

There is real clarity and excellent stereo imaging on the analogue stereo outputs and headphone amps. The overall conversion quality is excellent - for us it came closer than many to our Lavry AD/DA.

The four combo mic and instrument preamps built into the UFX are of a suitably high quality to match the AD/ DA converters. At high gain settings the self-noise is exceptionally low while the high-end and transient response is clearly uncompromised.

With a wide range of mics, from valve condensers to ribbons, we found the 65dB of gain enough for capturing most sources with a transparent frequency response that neither clouded nor exaggerated.

As instrument inputs these preamps provide more than enough gain and remain clean and flat. We would happily rely on these preamps for numerous tasks without requiring more 'flavoured' outboard and even with a range of choices in the studio there is no reason why the UFX preamps would still not see daily use.


The UFX manages to top the previous flagship model with quite some aplomb and offers unparalleled flexibility. The constant development and refining of the TotalMix system is key to the strength of the UFX and the standalone capabilities make sure there is nowhere this unit cannot be useful.

The front panel control further enhances the package as well as providing a surprisingly good source of metering. The sound quality matches up with the sheer quality of function making the UFX a peerless recording solution.

It's not the cheapest interface, but the price is more than fair and represents an investment that will truly last.

Future Music

Future Music is the number one magazine for today's producers. Packed with technique and technology we'll help you make great new music. All-access artist interviews, in-depth gear reviews, essential production tutorials and much more. Every marvellous monthly edition features reliable reviews of the latest and greatest hardware and software technology and techniques, unparalleled advice, in-depth interviews, sensational free samples and so much more to improve the experience and outcome of your music-making.