RME Fireface UCX II

Prism Sound Atlas is a high-end USB audio interface featuring 8 microphone preamps, 2 instrument inputs, 2 independent headphone outputs, 10 digital inputs and outputs, Overkiller limiters on every analog channel, and a built-in DSP mixer.

Designed for professional musicians, producers, engineers, studios, and post-production facilities, the Atlas provides exceptional audio quality and flexible I/O. It is ideal for recording, mixing, overdubbing, mastering, and analog summing. The 8 transparent microphone preamps offer extremely low noise performance (EIN -130 dBu), with individual phantom power switches and 20 dB pads. Every analog input features Prism Sound’s Overkiller limiter for safe tracking without audio degradation.

Atlas offers 8 analog inputs and outputs, plus up to 10 digital channels for playback and recording. A built-in DSP mixer enables ultra-low latency monitoring, and the front panel includes two headphone outputs with dedicated volume controls. The MDIO expansion slot allows future upgrades and connectivity with systems such as Pro Tools | HDX or AES3. Inputs 1 and 2 include MS matrix decoding and RIAA EQ for vinyl playback.

KEY FEATURES

• Professional USB audio interface with 8-channel ADC/DAC
• 8 microphone preamps with EIN -130 dBu, PAD and 48V phantom power
• 2 high-impedance instrument inputs on front panel
• Overkiller limiters on all analog inputs
• MS matrix and RIAA EQ on inputs 1–2
• Built-in low-latency DSP mixer with fader, pan, solo, mute
• 2 independent headphone outputs with individual level control
• MDIO expansion slot for digital I/O formats (Pro Tools | HDX, AES3)
• Support for stereo, 5.1, 7.1, and surround configurations
• Fully balanced and isolated analog architecture
• Core Audio (macOS) and ASIO (Windows) driver support
• Prism Sound’s 4-curve SNS noise-shaping on digital outputs
• Hybrid technology internal clocking system
• Standalone operation with ADAT, S/PDIF, or AES3 I/O
• Compatible with Windows Vista+ and macOS 10.4.11+

TECHNICAL SPECIFICATIONS

• Analog Inputs: 8 x XLR/TRS combo (mic/line), fully balanced
• Instrument Inputs: 2 x 1/4" Hi-Z on front panel
• Analog Outputs: 8 x 1/4" TRS, balanced with grounded-leg detection
• Digital I/O: up to 10 channels via ADAT, S/PDIF, AES3 (via MDIO)
• Headphone Outputs: 2 x 1/4" with independent level controls
• Mic Pre EIN: -130 dBu
• THD+N: < 0.0005%
• Frequency Response: 20 Hz – 20 kHz ±0.05 dB
• Dynamic Range: up to 119 dB (A-weighted)
• Latency: < 1.5 ms via internal DSP monitoring
• Sample Rates: up to 192 kHz with real-time sample rate conversion
• Expansion Slot: MDIO (supports HDX, AES3, future formats)
• Internal Clock: Prism Sound hybrid design
• Standalone Mode: supported
• Dimensions: 440 x 290 x 95 mm
• Weight: 5 kg