{"product_id":"rme-fireface-ucx-ii-40-channel-usb-audio-interface","title":"RME Fireface UCX II - 40-Channel USB Audio Interface","description":"\u003ch3\u003eRME Fireface UCX II - 40-Channel Advanced USB Audio Interface\u003c\/h3\u003e\n\u003cp\u003eThe Fireface UCX II is RME's most feature-dense compact interface. It's a half-rack unit that packs in what would typically require two or three full 19\" panels of equipment!\u003c\/p\u003e\n\u003cp\u003eDesigned for professional studio and live use, it combines a comprehensive analogue and digital I\/O set, a fully standalone operation mode, direct USB recording, and RME's industry-leading TotalMix FX routing engine into a single, highly portable package.\u003c\/p\u003e\n\u003cdetails style=\"margin-bottom: 2rem; padding: 2rem; background: #ededf4; border: 1px solid #30A2DC;\"\u003e\n\u003csummary\u003e\n\u003ch5 style=\"color: #30a2dc; margin-bottom: 0; font-size: 2rem;\"\u003eWHY BUY THE UCX II OVER OTHER BRANDS? CLICK TO FIND OUT.\u003c\/h5\u003e\n\u003c\/summary\u003e\n\u003chr style=\"border: none; height: 1px; background: grey;\"\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe UCX II sits in a different category to most interfaces marketed at a similar price. It isn't simply a box with more inputs, it's a complete, self-contained audio system designed for professional use in demanding environments.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eThe I\/O density is unmatched at this size.\u003c\/strong\u003e AES\/EBU, ADAT, SPDIF coaxial, word clock BNC, MIDI, and ten balanced analog channels, all in a half-rack unit. Competing interfaces from Focusrite, PreSonus, or Universal Audio at this size offer a fraction of this connectivity, and none include word clock or AES\/EBU as standard.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eIt works without a computer.\u003c\/strong\u003e The standalone mode and DURec functionality make the UCX II genuinely useful outside of a traditional DAW setup. Recording a live show directly to a USB drive, running it as a stage monitor mixer, or using it as a fixed install device, none of this requires a computer to be present.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eThe headphone output is serious hardware.\u003c\/strong\u003e At 210 mW into 32 Ω, the UCX II's headphone stage can drive any headphone on the market without compromise. This is a specification more associated with dedicated headphone amplifiers than audio interfaces.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eDC-coupled outputs for modular users.\u003c\/strong\u003e If you work with a hardware modular synthesizer, the UCX II eliminates the need for a dedicated expert sleepers or similar CV interface. All line outputs send CV and Gate directly to Eurorack.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eTotalMix FX replaces a hardware mixer.\u003c\/strong\u003e In a live or studio environment with multiple outputs and monitoring requirements, TotalMix FX handles routing and mixing entirely on the unit's own hardware, \u003cspan style=\"text-decoration: underline;\"\u003enot the host CPU\u003c\/span\u003e. Independent monitor mixes with EQ and reverb for every output, all controllable remotely from a tablet.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eLow latency that stays stable under pressure.\u003c\/strong\u003e As with all RME interfaces, the UCX II uses RME's own in-house driver stack, maintaining rock-solid stability at the lowest buffer settings.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eRME's driver longevity.\u003c\/strong\u003e RME maintains and updates its own drivers independently, meaning the UCX II will continue to work reliably on future operating systems long after comparable interfaces from other manufacturers have been abandoned.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIn Summary:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eMore I\/O in a smaller space than any comparable interface - AES\/EBU, word clock, ADAT, SPDIF coaxial, and 10 balanced analog channels in half a rack unit\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eFully standalone operation with six storable device states - no computer required\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eDURec records up to 40 channels directly to USB drive for live and field recording\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eHeadphone output delivers 210 mW @ 32 Ω - on par with dedicated headphone amps\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eDC-coupled outputs send CV\/Gate directly to modular synthesizers\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eTotalMix FX replaces a hardware mixer - runs on the unit's own chip, not your CPU\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eRME's in-house drivers guarantee long-term stability and OS support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/details\u003e\n\u003ch6\u003eBuild \u0026amp; Format\u003c\/h6\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe UCX II occupies just half a rack unit, making it practical for both desktop studio use and live rigs where space is at a premium.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eDespite its size, it doesn't compromise on connectivity. The front panel houses mic\/line preamps, instrument inputs, a headphone output, and a full colour display with direct controls, while the rear provides the full complement of balanced line I\/O, digital connections, and word clock.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0891\/3344\/9551\/files\/Fireface-UCX-II-CVGate.jpg?v=1774863992\" alt=\"RME UCX II on an amp showcasing the half-rack size\" style=\"float: none; margin-bottom: 1.5rem;\"\u003e\u003c\/div\u003e\n\u003ch6 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eAudio Performance\u003c\/h6\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe UCX II delivers professional-grade conversion throughout. Line inputs achieve an SNR of 112 dB (115 dBA), with THD below -110 dB. The mic preamps offer a 75 dB gain range with an EIN of -128 dBu (A-weighted) - clean enough for ribbon microphones and any other low-output sources.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eLine outputs reach a dynamic range of 112 dB with output levels switchable between +19, +13, and +4 dBu to suit any monitoring setup. The headphone output is particularly powerful, delivering up to 210 mW into a 32 Ω load,  enough to drive demanding headphones with ease.\u003c\/p\u003e\n\u003ch6 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003ePreamps \u0026amp; Inputs\u003c\/h6\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe two front-panel XLR combo mic preamps feature individually switchable 48V phantom power and a gain range of 75 dB. The two front instrument\/line inputs accept both balanced TRS and unbalanced TS, with a 1 MΩ input impedance for direct instrument connection.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eAt the rear, ten balanced TRS line inputs provide extensive connectivity for outboard gear, summing mixers, or additional sources. Input sensitivity on the rear line inputs is switchable between +19 dBu and +13 dBu, with an additional variable gain stage.\u003c\/p\u003e\n\u003ch6 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eConnectivity\u003c\/h6\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e2 × XLR combo mic\/line inputs (front)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e2 × Line\/instrument inputs (front, balanced TRS \/ unbalanced TS)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e6 × Balanced TRS line inputs (rear)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e6 × Balanced TRS line outputs (rear, level switchable)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e1 × Headphone output (6.3mm TRS, 210 mW @ 32 Ω)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eAES\/EBU I\/O (XLR, transformer-balanced)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eADAT optical I\/O (TOSLINK, up to 8 channels at 48 kHz)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eSPDIF coaxial I\/O (RCA)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eWord clock I\/O (BNC, switchable termination)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eMIDI I\/O (5-pin DIN)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eUSB 2.0 (host connection)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eUSB port (rear, for DURec recording \/ ARC USB remote)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eClass Compliant mode (driverless operation for iOS, Linux, etc.)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch6 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eSteadyClock FS\u003c\/h6\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe UCX II incorporates RME's full SteadyClock FS circuit, providing jitter suppression exceeding 50 dB across all clock modes. Critically, the UCX II can also lock to word clock via its dedicated BNC I\/O, which is important in larger studio setups where multiple digital devices need to share a single master clock.\u003c\/p\u003e\n\u003ch6 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eStand-Alone Operation\u003c\/h6\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe UCX II can operate entirely without a computer. Six device states can be stored in internal memory, each recallable directly from the front panel. This makes it practical as a live stage interface, a standalone preamp and converter, or a fixed install device in a venue or broadcast environment where a computer isn't part of the signal chain.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0891\/3344\/9551\/files\/Fireface-UCX-II-DURec.jpg?v=1774863932\" alt=\"RME UCX II with USB inserted outlining the standalone mode\" style=\"float: none; margin-bottom: 1.5rem;\"\u003e\u003c\/div\u003e\n\u003ch6 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eDURec (Direct USB Recording)\u003c\/h6\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eA dedicated rear USB port allows the UCX II to record all inputs and outputs directly to a USB drive or hard disk, completely independently of any connected computer. This internal DSP-driven recording functionality can capture up to 40 channels simultaneously to drives up to 2 TB, making it a capable standalone field recorder or live multitrack recorder. \u003c\/p\u003e\n\u003ch6 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eDC-Coupled Outputs \u0026amp; Modular Synthesis\u003c\/h6\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eAll line outputs on the UCX II are fully DC-coupled, meaning they pass static and extremely low-frequency signals without filtering.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThis is specifically relevant for modular synthesizer users. The outputs can send CV (control voltage) and Gate signals directly to Eurorack and other modular formats, allowing the UCX II to act as a bridge between a DAW and a hardware modular system without any additional hardware.\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0891\/3344\/9551\/files\/Fireface-UCX-II-DC.jpg?v=1774863932\" alt=\"RME UCX II with modular synths showcasing the DC features\" style=\"float: none; margin-bottom: 1.5rem;\"\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003ch5 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eKEY FEATURES: RME Fireface UCX II\u003c\/h5\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e40-channel, 192 kHz USB 2.0 interface in a half-rack form factor\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e2 × XLR mic preamps (75 dB gain range, EIN -128 dBu, 48V phantom)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e4 × Analog inputs (front panel) + 6 × balanced line inputs (rear)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e6 × Balanced line outputs (level switchable: +19\/+13\/+4 dBu)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eHeadphone output: 210 mW @ 32 Ω\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eAES\/EBU, ADAT, SPDIF coaxial, and word clock I\/O\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eSteadyClock FS clocking with word clock BNC I\/O\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eFull standalone operation - 6 storable device states\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eDURec: direct multitrack recording to USB drive, up to 2 TB, no computer required\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eDC-coupled outputs for CV\/Gate use with modular synthesizers\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eTotalMix FX with 9-band Room EQ, dynamics, reverb, delay\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eTotalMix Remote via Wi-Fi\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eClass Compliant mode for driverless operation\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eARC USB remote control compatible\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eRME in-house drivers - regularly updated, long-term OS support\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"RME","offers":[{"title":"Default Title","offer_id":57350303646031,"sku":"RME-FIREFACE-UCX-II","price":1109.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0891\/3344\/9551\/files\/RME_Fireface-UCX-II_perspective.jpg?v=1777480277","url":"https:\/\/www.audiodirect.co.uk\/products\/rme-fireface-ucx-ii-40-channel-usb-audio-interface","provider":"Audio Direct","version":"1.0","type":"link"}