RME UCX II

RME Fireface UCX II｜Studio-Grade 40-Track Half-Rack USB Audio Interface

German Precision Engineering, an Ultra-Stable Core Built for Professional Recording and Live Applications

The RME Fireface UCX II is a professional-grade USB audio interface launched by the German brand RME, featuring advanced SteadyClock FS femtosecond clock technology, offering up to 24-bit/192kHz A/D Resolution and 40 Simultaneous I/O channels. Its compact half-rack design integrates two reference-grade Mic Preamps, extensive analog and digital connectivity, and the exclusive DURec direct recording function, providing unparalleled stability and sound quality for professional recording studios, live performances, and mobile recording.

Compared to similar products that rely on computer CPUs for effects processing, the Fireface UCX II's built-in TotalMix FX dual DSP engine provides truly zero-latency monitoring and effects processing, including EQ, compression, reverb, and delay, completely freeing up your creative workflow. Whether integrating modular synthesizers, performing multi-track recording, or serving as the core of a live performance, the UCX II is the top choice for professionals seeking ultimate reliability.

Quick Facts Product Overview

Brand: RME
Model: Fireface UCX II
Simultaneous I/O: 20 Input / 20 Output (40 channels total)
A/D Resolution: 24-bit / 192kHz
Clock Technology: SteadyClock FS (femtosecond-grade)
Core Features: DURec Direct Recording, TotalMix FX Zero-Latency Monitoring
Applicable Scenarios: Professional Recording Studios, Personal Studio Mixing, Live Performance Recording, Modular Synthesizer Integration, Podcast Production

使用者建議分析(點此展開)

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✅ 適合誰購買

Professional music producers or recording engineers who seek ultimate sound quality and clock stability.
Electronic music creators who need to seamlessly integrate modular synthesizers (Modular Synth) with computer systems.
Musicians looking for a compact, portable yet powerful audio interface for live performances or mobile recording.
Singers or musicians who want to eliminate computer latency and use high-quality EQ, compression, and other effects while recording.

⚠️ 誰不適合購買

Beginners just starting with recording who only need 1-2 input channels (the UCX II's features and price may exceed initial needs).
Users who solely do podcasting or voice recording and do not require extensive I/O or digital expandability.
Users with a limited budget and sufficient computer performance for low-latency monitoring.

RME Fireface UCX II Core Technologies and Features

SteadyClock FS Femtosecond-Grade Clock: Equipped with clock technology on par with RME's flagship ADI-2 Pro converter, suppressing jitter to femtosecond levels, providing unparalleled sound clarity, depth, and stability.
Reference-Grade Mic Preamps: Equipped with two digitally controlled Mic Preamps, offering pure, transparent amplification circuitry, capable of precisely capturing every detail of vocals and instruments, meeting the most demanding recording needs.
TotalMix FX Zero-Latency Processing: Built-in powerful dual DSP processors provide zero-latency EQ, dynamics (compression/expansion), reverb, and delay effects in the monitoring path, allowing performers to record in optimal condition without relying on the computer's CPU.
DURec Direct USB Recording: The exclusive DURec function allows you to record up to 40 tracks of audio directly to any USB flash drive or hard drive, serving as a reliable backup for live performances, or for recording without a computer.
DC-Coupled Outputs: All analog outputs are DC-Coupled, capable of sending CV/Gate voltage control signals, perfectly integrating modular synthesizers and other analog hardware without additional converter interfaces.
Comprehensive Connectivity: Within its compact half-rack size, it provides full analog inputs/outputs, ADAT, AES/EBU, S/PDIF, MIDI, and Clock I/O, easily handling various complex recording and integration challenges.

TotalMix FX Zero-Latency DSP Effects and Mixing

Completely Independent DSP Cores: One DSP is dedicated to effects processing, while the other handles mixing and routing, ensuring zero latency and stability even with complex monitoring setups.
Processing Available on Every Channel: All 20 input and 20 software playback channels can independently host 3-band parametric EQ, High-Pass Filter, compressor, expander, auto-gain, and reverb/delay sends.
Flexible Routing Matrix: Provides powerful routing capabilities, allowing the creation of multiple independent monitoring mixes (e.g., musician headphone mixes, control room monitoring), and freely routing any input to any output.
Software Control and Scene Storage: All operations are performed via an intuitive software interface, and complete mixing scenes can be saved, facilitating quick switching between different projects or performances.

DURec: Direct USB Recording Function

Standalone Recording Without a Computer: Connect a USB storage device (up to 2TB supported) to the DURec port on the rear panel to independently record all input/output channels.
Reliable Backup Solution: During live performances or critical recording sessions, DURec can serve as a parallel backup to the computer recording system, ensuring foolproof reliability.
Timestamp Function: Built-in Real-Time Clock (RTC), all recorded files will have timestamps, facilitating post-production organization and track alignment.
Advanced Playback Functionality: Not only can it record, but it can also play audio files from a USB device, useful for virtual soundchecks or playing background music.

Bundled Software and Plug-ins

Antares Auto-Tune Unlimited: Includes a 3-month subscription to experience industry-standard vocal tuning and effects processing tools.
Brainworx bx_opto & bx_masterdesk: Includes classic optical compressor emulation and intuitive mastering plugins.
iZotope RX 10 Elements: Provides powerful audio repair tools to easily remove noise, hum, and hiss.
Plugin Alliance All Bundle: A one-month subscription service, allowing you to fully utilize all high-quality plugins from Plugin Alliance.

In the Box

1 x Fireface UCX II Audio Interface
1 x USB-B to USB-C Cable
1 x External DC Power Supply

Technical Specifications

Computer Connection	USB 2.0
Form Factor	Desktop / Half-Rack
Simultaneous I/O	20 Input / 20 Output
A/D Resolution	Up to 24-bit / 192kHz
Mic Preamps	2
Phantom Power	2 Channels (+48V)
Analog Inputs	2 x XLR-1/4" Combo (Mic/Instrument/Line), 6 x 1/4" TRS (Line)
Analog Outputs	6 x 1/4" TRS (DC-Coupled)
Digital Inputs	1 x ADAT (or S/PDIF), 1 x AES/EBU (or S/PDIF)
Digital Outputs	1 x ADAT (or S/PDIF), 1 x AES/EBU (or S/PDIF)
Headphone Output	1 x 1/4" TRS
MIDI I/O	1 x In, 1 x Out (via Breakout Cable)
Clock I/O	1 x Word Clock In, 1 x Word Clock Out
USB Port	1 x USB-B 2.0 (Host), 1 x USB-A (DURec)
Bundled Software	TotalMix FX, Antares Auto-Tune (3 months), Brainworx, iZotope, Plugin Alliance (1 month)
Operating System (Mac)	macOS 10.12 or later
Operating System (PC)	Windows 7 or later
Power Source	USB Bus-Powered / 12V DC External Power Supply (Included)
Dimensions	21.6 cm (W) x 4.4 cm (H) x 13.2 cm (D)
Weight	0.91 kg

Pros & Notes (Click to expand)

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Pros

Industry-leading SteadyClock FS clock technology, providing extremely low jitter and clear sound quality.
Powerful TotalMix FX zero-latency DSP engine, capable of handling monitoring and effects without computer processing.
Abundant I/O interfaces, including analog, digital, and MIDI, capable of handling complex recording scenarios.
Unique DURec function, allowing direct recording to USB storage devices, providing reliable backup.
Compact half-rack design, balancing powerful features with portability.

Notes to Know

More professional features; beginners may need time to learn TotalMix FX operation.
The included Antares Autotune Unlimited is a 3-month subscription.
The ARC USB remote control needs to be purchased separately.

RME UCX II FAQ

Q：What is the biggest difference between the RME Fireface UCX II USB Audio Interface and other audio interfaces?

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A：The biggest difference lies in its SteadyClock FS femtosecond clock technology and TotalMix FX zero-latency DSP engine. These two ensure ultimate sound quality stability and enable complex monitoring mixes without consuming computer resources.

Q：How to choose between Fireface UCX II and Babyface Pro FS?

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A：If you need more I/O expandability (such as ADAT), MIDI interfaces, and rackmount options, choose the UCX II. If your primary needs are extreme portability, desktop operation, and 4 analog I/O are sufficient, the Babyface Pro FS is a better fit.

Q：Is investing in the RME Fireface UCX II worth it for a personal studio?

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A：If you have extremely high demands for sound quality stability, low latency, and future expandability, the UCX II is a very worthwhile long-term investment. Its reliable drivers and robust build quality ensure stable operation for years to come.

Q：Can I use the Fireface UCX II to control my Modular Synth?

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A：Yes. The UCX II's analog outputs are DC-Coupled, allowing you to directly send CV/Gate control signals to your modular synthesizer via DAW software (such as Ableton CV Tools) without additional converters.

Q：Is the DURec function of the Fireface UCX II practical?

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A：Very practical. It can record all channels directly to a USB flash drive, serving as a backup recording for live performances, or for sound checks and recording without a computer, offering extremely high stability.

THINK2 Warranty & Support

Service Highlights

Fast Shipping: In-stock items will be shipped within 24 business hours.
Professional Technical Support: Our certified audio engineers provide consultation for installation, licensing, compatibility, and setup.
Comprehensive Warranty & After-Sales Service: Includes both manufacturer warranty and THINK2 customer support.

※ Shipping times are calculated based on business days. Actual warranty follows the manufacturer’s policy. THINK2 provides integration and support assistance.

Warranty & Return Policy

With valid proof of purchase and product serial number, customers are entitled to manufacturer warranty and THINK2 after-sales service.
DOA / Non-human defects: Within 7 days of purchase, after verification, customers may request return or replacement.
Exclusions: Damages from misuse, unauthorized modification, consumable parts, natural disasters, or improper use beyond instructions.
Application Process: Contact customer service during business hours for return instructions.
Service Coverage: Taiwan region primarily; overseas based on logistics standards.

THINK2 — Authorized Audio Gear Dealer in Taiwan