RME Fireface UCX II USB | Audio Interface

RME Fireface UCX II USB Audio Interface Overview

The Fireface UCX II is a deeply integrated pro audio device for studio and live use in an incredibly compact unit. It follows RME’s longstanding history of creating tiny powerful interfaces, putting what would normally be spread out over two or three 19-inch panels into a half-rack size unit.

The audio system of the Fireface UCX II directly sends analogue and digital audio data to Windows and Mac PCs. Even for unskilled users, the newest Plug & Play technology ensures an easy installation. The Fireface UCX II operates quickly, comfortably, and efficiently thanks to several unique features such as a well-thought-out Settings dialogue and an integrated routing solution.

On the front panel of the Fireface UCX II, there are two XLR combo mic/line preamps, two digitally controlled line/instrument inputs, the primary volume knob, a display, a headphone jack, and numerous control buttons. There are ten analogue balanced line inputs and outputs on the back, as well as MIDI, ADAT, AES/EBU, and SPDIF I/O, USB 2.0, and a switchable word clock I/O.

The Fireface UCX II has RME’s newest clock and jitter rejection technology, the SteadyClock FS. It is based on a femtosecond clock and decreases intrinsic jitter while converting from and to analogue across all digital formats.

To provide quick, immediate access to all functionalities, you can control all device states straight from the front panel. You can quickly modify and adjust device settings using the colour display with a well-designed menu and four keys and the encoder. Internal memory lets you permanently store six different unit states. The Fireface UCX II can run on its own without being connected to a PC, and when used on its own, it can be changed into different devices by just clicking a button.

DURec is an integrated digital recorder for all inputs and outputs directly to USB memory through the rear USB port and lets you record on USB thumb drives or hard drives up to 2TB. The recording feature is provided by the inbuilt DSP and works standalone. The USB connector can also be utilised for the RME optional USB remote control.

The Direct USB recording turns the Fireface UCX II into a stand-alone field recorder, for example for virtual sound checks, into a live multi-channel player. You can record rehearsals, live performances, and jams without a computer or software. For recording and playback, all input and output channels can be selected separately.

Fireface UCX II comes with extensive routing and monitoring options for the TotalMix FX DSP Mixer and a DIGICheck Analyzer that lets the digital data feed be measured and analysed with utmost precision. TotalMix FX can substitute external mixers, so you can create many latency-free monitor mixes with Reverb, Dynamics, Delay and EQ for all outputs, including main monitors, and headphone mixes.

The extra TotalMix Remote is a TotalMix FX remote controller to operate the hardware mixer and audio effects of RME audio interfaces. TotalMix Remote mimics the host system in the current state on iPad and Windows/Mac PCs — the full mixing state, the whole routing process, including FX configurations, up to the level meters and all in real-time. Change the mixer and FX settings easily through Ethernet and WiFi.

Fireface UCX II can operate in two different modes - driver-based USB2 and Class Compliant. Since 2001 TotalMix has brought unlimited routing and mixing to RME’s audio interfaces and is able to create as many independent submixes as there are output channels available, turning it into the most flexible and powerful mixer of its kind.

Analog
AD, Line In 5-8, rear
Resolution AD: 24 bit
Signal to Noise ratio (SNR): 112 dB RMS unweighted, 115 dBA
Frequency response @ 44.1 kHz, -0.1 dB: 5 Hz – 20.8 kHz
Frequency response @ 96 kHz, -0.5 dB: 3 Hz – 45.8 kHz
Frequency response @ 192 kHz, -1 dB: 2 Hz – 92 kHz
THD: < -110 dB, < 0.00032 %
THD+N: < -104 dB, < 0.00063 %
Channel separation: > 110 dB
Input: 6.3 mm TRS jack, electronically balanced
Input impedance: 8 kOhm unbalanced, 12 kOhm balanced
Input sensitivity switchable to +19 dBu and +13 dBu
Variable gain: 0 to +12 dB
Minimum level for 0 dBFS: +1 dBu, -1.2 dBV
Line In 3-4, front
As AD, but:
Additional Gain stage: 0 up to +12 dB
Maximum input level, +19 dBu, Gain 0 dB: Line +19 dBu, Inst +13 dBu
Maximum input level, +13 dBu, Gain 12 dB: Line +1 dBu, Inst -5 dBu
Input impedance: Instrument 1 MOhm. Line 13 kOhm balanced, 9 kOhm unbalanced
Input Gain Inst: +6 dB
Input mode: Line balanced (TRS), Inst unbalanced (TS)
Microphone In 1-2, front
As AD, but:
Input: XLR, electronically balanced
Input impedance: 5.4 kOhm
Gain range: 75 dB
Maximum input level, Gain 0 dB: +18 dBu
Maximum input level, Gain 75 dB: -57 dBu
EIN: -128 dBu A-weighted, 60 dB gain,150 Ohm, 20 Hz – 20 kHz
Line In 1-2
As AD, but:
Input: TRS, electronically balanced
Input impedance: 10 kOhm balanced, 5 kOhm unbalanced
Maximum input level, Gain 0 dB: +24 dBu
Maximum input level, Gain 75 dB: -51 dBu
DA, Line Out 1-6, rear
Resolution: 24 bit
Dynamic range (DR): 112 dB RMS unweighted, 115 dBA
Frequency response @ 44.1 kHz, -0.5 dB: 5 Hz – 20.8 kHz
Frequency response @ 96 kHz, -0.5 dB: 5 Hz – 45 kHz
Frequency response @ 192 kHz, -1 dB: 5 Hz - 89 kHz
THD: < -108 dB, < 0.0004 %
THD+N: < -104 dB, < 0.00063 %
Channel separation: > 110 dB
Maximum output level: +19 dBu
Output: 6.3 mm TRS jack, servo-balanced
Output impedance: 75 Ohm
Output level switchable +19 dBu, +13 dBu, +4 dBu
DA - Stereo Monitor Output Phones (7-8)
As DA, but:
Output: 6.3 mm TRS stereo jack, unbalanced
Maximum output level at 0 dBFS, High: +19 dBu
Maximum output level at 0 dBFS, Low: +4 dBu
Output impedance: 1 Ohm
Max power per channel @ 32 Ohm load, 0.1% THD: 210 mW (2.6 Vrms, +10.5 dBu)
MIDI
1 x MIDI I/O via 5-pin DIN jacks
Galvanically isolated by optocoupled input
Hi-speed mode: Jitter and response time typically below 1 ms
Separate 128 byte FIFOs for input and output
Digital
Clocks: Internal, ADAT, AES, SPDIF, word clock
Jitter suppression of external clocks: > 50 dB (2.4 kHz)
Effective clock jitter influence on AD and DA conversion: near zero
PLL ensures zero dropout, even at more than 100 ns jitter
Digital Bitclock PLL for trouble-free varispeed ADAT operation
Supported sample rates: 28 kHz up to 200 kHz
Digital Inputs
AES/EBU
1 x XLR, transformer-balanced, galvanically isolated, according to AES3-1992
High-sensitivity input stage (< 0.3 Vpp)
SPDIF compatible (IEC 60958)
Accepts Consumer and Professional format
Lock range: 27 kHz – 200 kHz
Jitter suppression: > 50 dB (2.4 kHz)
SPDIF coaxial
1 x RCA, according to IEC 60958
High-sensitivity input stage (< 0.3 Vpp)
Accepts Consumer and Professional format, copy protection will be ignored
Lock Range: 27 kHz – 200 kHz
Jitter suppression: > 50 dB (2.4 kHz)
ADAT Optical
1 x TOSLINK, format according to Alesis specification
Standard: 8 channels 24 bit, up to 48 kHz
Double Speed (S/MUX): 4 channels 24 bit 96 kHz
Quad Speed (S/MUX4): 2 channels 24 bit 192 kHz
Bitclock PLL ensures perfect synchronisation even in varispeed operation
Lock range: 31.5 kHz – 50 kHz
Jitter suppression: > 50 dB (2.4 kHz)
SPDIF compatible (automatic detection)
Word Clock
BNC
Internal termination 75 Ohm switchable
Automatic Double/Quad Speed detection and internal conversion to Single Speed
SteadyClock guarantees super low jitter synchronization even in varispeed operation
Not affected by DC-offsets within the network
Signal Adaptation Circuit: signal refresh through auto-center and hysteresis
Overvoltage protection
Level range: 1.0 Vpp – 5.6 Vpp
Lock Range: 27 kHz – 200 kHz
Jitter suppression: > 50 dB (2.4 kHz)
Digital Outputs
AES/EBU
XLR, transformer-balanced, galvanically isolated, according to AES3-1992
Output level Professional 4.5 Vpp, Consumer 2.6 Vpp
Format Professional according to AES3-1992 Amendment 4
Format Consumer (SPDIF) according to IEC 60958
Single Wire mode, sample rate 28 kHz up to 200 kHz
SPDIF coaxial
1 x RCA, according to IEC 60958
Output level Professional 1.2 Vpp, Consumer 0.6 Vpp
Format Professional according to AES3-1992 Amendment 4
Format Consumer (SPDIF) according to IEC 60958
Single Wire mode, sample rate 28 kHz up to 200 kHz
ADAT
1 x TOSLINK, format according to Alesis specification
Standard: 8 channels 24 bit, up to 48 kHz
Double Speed (S/MUX): 4 channels 24 bit 96 kHz
Quad Speed (S/MUX4): 2 channels 24 bit 192 kHz
Word Clock
BNC
Max. output voltage: 5 Vpp
Output voltage @ 75 Ohm termination: 4.0 Vpp
Output impedance: 10 Ohm
Frequency range: 27 kHz – 200 kHz
General
Power supply: external power supply
Typical power consumption: 13 Watts
Current at 12 Volt operating voltage: 910 mA (11 Watts)
Dimensions incl. rack ears, full depth (WxHxD): 265 x 44 x 155 mm (10.5" x 1.73" x 6.1")
Dimensions without rack ears, body depth (WxHxD): 215 x 44 x 130 mm (8.5" x 1.73" x 5.1")
Weight: 910 g ( 2.0 lbs)
Temperature range: +5° up to +50° Celsius (41° F up to 122°F)
Relative humidity: < 75%, non condensing

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