Analog or Digital

The ADI-2 Pro FS features two servo-symmetric analog inputs on XLR / Jack 6.35mm TRS combo connectors, two separate balanced and unbalanced outputs on XLR and Jack 6.35mm TS, two Extreme Power stereo headphone outputs on the front panel and an ADAT-compatible optical SPDIF input/output. The device also includes SPDIF Coaxial (RCA) and AES input/output (XLR) via a 9-pin splitter cable provided. This complete panel of inputs and outputs allows this ADI-2 Pro FS an impressive flexibility of use.

The USB-B 2.0 port offers full compatibility (UAC 2), including the ability to connect iOS devices. This USB port also allows you to update the device's firmware. The ADI-2 Pro FS uses an external switched-mode power supply with lockable connector but can also be powered by a battery for mobile use.

As a computer interface, the ADI-2 Pro FS offers a stereo mode (2 inputs / 2 outputs) and a multi-channel mode (6 inputs / 8 outputs). Mac OS X compatibility is native. On Windows, simply install the RME MADIface drivers for full ASIO and WDM compatibility.

Perfect Capture and Restitution

Aiming for the most neutral and faithful sound possible, every detail of the ADI-2 Pro FS has been designed and adjusted. The main PCB has a 10-layer design with copper circuits, guaranteeing undisturbed sound and allowing efficient power supply to the different stages. Internal power stages and high-precision controllers use a very low-noise design to avoid degrading performance on the power rails. The selected SoundPlus operational amplifiers maintain high SNR, low THD and high scanning speed in all situations. The entire analog circuit is symmetrical, balanced and DC coupled. The only capacitors in the signal path provide DC protection at the analog input connectors and have been carefully selected to avoid any impact on the sound.

The 4-channel Analog-to-Digital (ADC) converter, supporting 768kHz PCM and DSD recording, is used in a dual mono design with an improved signal-to-noise ratio of 3dB. Two premium DACs are used for two separate stereo outputs. Internal audio processing using equalizers, crossfeed and spectrum analysis is provided by a high-performance 2.17 Giga FLOPS (2882 MIPS) DSP, delivering enough computing power to operate even at sampling rates of 768kHz.

For ease of use, a high quality SRC (Sample Rate Converter) chip has been added, switchable to AES or SPDIF inputs, eliminating any potential clock problems. The latest version of RME clock technology, SteadyClock III, ensures perfect jitter reduction and a stable clock signal, whether you use internal or external clocks.

High Definition Screen

RME has integrated into its ADI-2 Pro FS many unique features not available on other devices on the market, such as a 5-band parametric equalizer, bass/treble level control with quick access, binaural crossfeed, adjustable loudness filter, selectable ADC/DAC filters, 4 discrete I/O levels, automatic reference level adjustment, automatic balance mode and much more. The display not only allows you to check the device, but also displays warnings and advice.

Professional features are also available, such as Mid/Side processing, stereo width and phase inversion management to full control and storage of all available parameters, such as the RME spectrum analyzer, a 30-band biquad filtered analysis tool that provides a perfect complement to the high resolution IPS display.

Extreme Power Headphone Outputs

RME engineers have designed a headphone output stage to take full advantage of the DAC conversion quality, including the use of low impedance headphones. The Extreme Power architecture allows an output impedance of only 0.1Ω, a maximum output level of +22dBu and an output power of 1.5W per channel. The two completely separate headphone outputs provide an SNR of 120dBA and a THD well below -100dB (0.001%) even at full power for detailed, accurate and clear reproduction. Extreme Power technology also includes a current limiter, power monitoring, overload detection and overvoltage protection. High or low power modes are also available, allowing the ADI-2 Pro FS to work with both IEMs and planar headsets.

With 2 stereo headphone outputs, the ADI-2 Pro FS can also be used in balanced mode. RME has developed a new advanced symmetric operating mode for the ADI-2 Pro, eliminating many of the limitations of a standard symmetric link. This advanced balanced mode delivers a balanced signal directly from the DAC to the headphone outputs with a 3dB gain at the SNR, an optimized frequency response, an extremely low output impedance (0.2Ω) and a maximum output level of +28dBu.