RME Fireface UCX II USB Audio Interface
- 40 channels in a half-rack unit
- Two mic preamps with AutoSet overload protection
- DURec records to a USB drive with no computer
$1,699.00 USD
RME Fireface UCX II USB Audio Interface
The RME Fireface UCX II puts a 40-channel USB audio interface into a half-rack unit, with two mic preamps and DURec recording straight to a USB drive.
Inputs and Outputs
The front panel holds two mic/line inputs on XLR combo jacks, two line/instrument inputs, a headphone output, the color display, and the main volume knob. The rear carries four more balanced line inputs and six balanced line outputs, ADAT optical, MIDI, word clock, and USB 2.0, and the included breakout cable adds AES/EBU and coaxial SPDIF in and out.
The mic preamps offer 75 dB of gain. AutoSet watches the four front inputs and pulls the gain back when a level passes -6 dBFS, keeping 6 dB of headroom against overloads. Every line output is DC-coupled, so it can also send control voltages and gate signals to modular synthesizers.
Stand-Alone Use and DURec
Four keys, an encoder, and the display reach every setting from the front panel, and six memory slots store complete setups, so the UCX II runs fully stand-alone without a computer.
DURec records any of its inputs and outputs to a USB thumb drive or hard drive of up to 2 TB through the rear USB port, and plays recordings back, with no computer connected. The same port takes RME’s optional ARC USB remote.
Clock, Computer Connection, and Mixing
SteadyClock FS, built on a femtosecond clock, keeps jitter low when converting to and from analog over every digital format. The UCX II runs on RME’s USB 2.0 driver. In Class Compliant mode it works with no driver on Windows, Mac, Linux, and an iPad, with fewer features than the driver offers.
TotalMix FX builds latency-free monitor mixes for any output, with EQ, dynamics, reverb, and delay, and its Room EQ adds a 9-band parametric EQ and volume calibration. TotalMix Remote controls the mixer from an iPad or another computer over Ethernet or Wi-Fi. The UCX II runs from the included 12 V power supply, which has a lockable connector.
Features
- 40 channels with 8 analog inputs and outputs, ADAT, AES/EBU, and SPDIF
- Two mic preamps with 75 dB of gain
- AutoSet overload protection on the four front inputs
- Color display and six stored setups for stand-alone use
- DURec recording and playback on USB drives up to 2 TB
- DC-coupled line outputs for CV and gate
- SteadyClock FS clock
- TotalMix FX with Room EQ
- Class Compliant mode for driverless use
- Word clock and MIDI I/O
What's Included
- Fireface UCX II
- USB 2.0 cable, 1.8 m (6 ft)
- Optical cable (TOSLINK), 2 m (6.6 ft)
- Digital breakout cable (XLR/RCA)
- External power supply, 12 V DC, 24 W, lockable connector
- Power cord
Specifications
| Analog Inputs | 2 x XLR/TRS combo mic/line (1-2, front); 2 × 6.3 mm TRS line/instrument (3-4, front); 4 × 6.3 mm TRS balanced line (5-8, rear) |
|---|---|
| Mic Preamp Gain | 75 dB range |
| Mic Input EIN | −128 dBu A-weighted (60 dB gain, 150 Ohm, 20 Hz to 20 kHz) |
| Maximum Mic Input Level | +18 dBu at 0 dB gain |
| Line Input SNR | 112 dB RMS unweighted, 115 dBA |
| Line Outputs | 6 × 6.3 mm TRS servo-balanced (1-6, rear), switchable +19, +13, or +4 dBu |
| Line Output Dynamic Range | 112 dB RMS unweighted, 115 dBA |
| Headphone Output | 1 × 6.3 mm TRS stereo (7-8, front), unbalanced; 210 mW per channel at 32 Ohm, 0.1% THD |
| Digital I/O | 1 x ADAT optical in and out (8 channels at 48 kHz, 4 at 96 kHz, 2 at 192 kHz), also SPDIF; 1 x AES/EBU (XLR) and 1 x SPDIF coaxial (RCA) in and out via breakout cable |
| Word Clock | BNC in and out, switchable 75 Ohm termination |
| MIDI | 1 x MIDI I/O, 5-pin DIN |
| Clock Sources | Internal, ADAT, AES, SPDIF, word clock; SteadyClock FS |
| Sample Rates | 28 kHz to 200 kHz |
| Computer Connection | USB 2.0; Class Compliant mode |
| Direct USB Recording | DURec to USB drives up to 2 TB (rear USB port) |
| Power | External 12 V DC power supply with lockable connector; 13 W typical |
| Dimensions | 215 × 44 × 130 mm (8.5 × 1.73 × 5.1 in), W x H x D, without rack ears |
| Weight | 910 g (2.0 lb) |
| Operating Temperature | 5 to 50 °C (41 to 122 °F), relative humidity under 75%, non-condensing |
