RME ADI-2/4 Pro SE – High-End 2×4 Converter & Extreme Power Headphone Amp

The ADI-2/4 Pro SE enhances the classic ADI-2 Pro formula with expanded I/O, faster DSP, and added flexibility.

Key Features

• 32-bit / 768 kHz conversion: Ultra-high-resolution A/D and D/A conversion with class-leading dynamic range and low distortion
• 2 analog inputs + 4 analog outputs: Servo-balanced XLR/TRS combos upfront, and independent balanced XLR + TRS outputs for flexible routing
• Dual Extreme Power headphone outputs: Delivers up to 2.1 W unbalanced, 3.4 W balanced (32 Ω); includes IEM mode and Pentaconn 4.4 mm connection
• Multiformat digital I/O: AES/EBU (XLR), coaxial & optical S/PDIF, ADAT (via optical input supports ADAT mode), with sample-rate conversion
• Independent output routing: Line and Phones outputs can operate simultaneously with different sources; True Balanced mode separates headphone and line output paths
• Rich DSP capabilities: 5-band parametric EQ, Bass/Treble, crossfeed, loudness curve, mid-side processing, rumble filter, polarity, summing, and filter shaping
• Remote control & trigger out: Includes IR remote (Multi Remote Control) plus 12 V trigger output jack for external devices
• Class-compliant USB + multichannel mode: Operates driverlessly on macOS, Linux, iOS; supports stereo (2×2) or multichannel (6×8) configurations

Customer Benefits

With the ADI-2/4 Pro SE, you get the flexibility of a converter, headphone amp, DAC, and mastering tool all in one. The expanded I/O lets you integrate analog, digital, and monitoring paths seamlessly. The twin headphone stage brings reference-level output without sacrificing clarity. And the robust DSP tools let you fine-tune your signal on the fly.

Quick Specs

• Inputs: 2 × XLR/TRS servo-balanced mic/line
• Outputs: 4 analog (balanced XLR + TRS), 2 headphone (front)
• Digital I/O: 1 × AES/EBU XLR, 1 × coaxial S/PDIF, 1 × optical S/PDIF/ADAT
• Max sample rate / bit depth: 768 kHz / 32-bit
• Headphone power: 2.1 W unbalanced, 3.4 W balanced (at 32 Ω)
• Dimensions: 24.0 cm × 4.4 cm × 13.3 cm
• Weight: ≈ 1.3 kg
• Power: External supply, 9.5-15 V DC (internal regulator, high efficiency)

What’s in the Box

• RME ADI-2/4 Pro SE unit
• External power supply (switched, lockable connector)
• Digital breakout cable (for AES / S/PDIF connections)
• Multi Remote Control (IR)
• Quick start guide & links to full manual

Use Cases / Ideal For

Excellent for mastering, hi-fi reference listening, DAW monitoring, headphone-centric setups, vinyl digitization, and audio measurement systems. Ideal where top-tier conversion, DSP and headphone output are demanded from a compact, flexible unit.

Compatibility

Supports macOS, Windows, Linux in standard and multichannel modes. Class-compliant USB works with iPadOS. DSP and control accessible via ADI-2 Remote app. Integrates with analog studios, digital consoles, outboard gear or modular systems.

Pros & Cons

✅ Pros:

• Extremely versatile I/O and format conversion
• High-power, high-fidelity headphone output—great for demanding headphones / IEMs
• Comprehensive onboard DSP tools without computer load
• Trigger out, IR remote, and flexible routing further enhance workflow
• Pristine clocking and converter performance at ultra-high sample rates

⚠️ Cons:

• Deep feature set entails learning curve for full unlock
• Not intended to be a full multitrack audio interface (2 × 4 primary routing)

The RME ADI-2/4 Pro SE redefines what a converter/headphone hub can do—offering state-of-the-art conversion, powerful headphone outputs, advanced DSP, and robust connectivity in one refined package. A smart choice for discerning users seeking quality and flexibility.