RME ADI-2/4 Pro EX

RME ADI-2/4 Pro EX | Reference AD/DA Converter & Mastering Hub

The RME ADI-2/4 Pro EX updates RME's flagship converter with latest-generation ESS conversion, expanded analog capabilities, active hardware protection, and factory-calibrated clock precision.

Key Features

• Next-Gen ESS Conversion: Equipped with ESS9823Pro A/D and ESS9039Q2M D/A converters to deliver improved signal-to-noise ratio, lower distortion, and an even lower headphone noise floor.

• SteadyClock EX: Factory-calibrated internal clock precision within ±1 ppm, featuring fine-tune sampling rate adjustment up to +50 ppm in 0.1 ppm steps for "Sync without Sync" integration.

• Extended Analog Inputs: Lower reference levels down to -35 dBu support direct dynamic microphone connections. Includes line-mode RIAA equalization and selectable balanced input impedance (94 kΩ / 47 kΩ) for phono setups.

• Hardware Protection: Independent DC protection per headphone output and an active, fuse-less power supply protection system against reverse polarity and overvoltage.

• Upgraded Connectivity: Features a lockable USB-C port (1.8 m cable included, USB 2.0 compatible), dedicated chassis ground terminal, and compatibility with the RM19-III rackmount adapter.

• ELAR Technology: Refined Extended Linear Analog Range preserves signal purity and linear frequency response while maintaining full onboard DSP flexibility.