Brief Description And Characteristics - RME Audio ADI-2 Pro User Manual

4. Brief Description and Characteristics

The ADI-2 Pro is a 2-channel analog input to digital and 4-channel digital to analog output con-
verter in a half-rack (9.5") enclosure of 1 U height. Latest 32 bit / 768 kHz converters offer up to
124 dBA signal to noise ratio. This value is not only printed in the brochure – it is what the unit
achieves in real-world operation.
Reference class tech specs throughout are combined with an unprecedented feature set. A
powerful DSP adds all kinds of useful audio processing, including 5-band parametric EQ, fast
Bass/Treble adjustment, Crossfeed, and a new concept in Loudness sound control.
Operation is quick and easy through 3 encoders with push button function and 4 more buttons
to access dedicated menus. The unit remembers all current settings, even the menu position.
Additionally the unit's whole setup as well as equalizer settings can be stored under individual
names.
A high resolution IPS panel for the graphical operation surface eases operation even more, and
displays further functions provided by the DSP, namely Peak level meters, a 30-band analyzer
in DIGICheck biquad filter technology, and a State Overview screen listing the current states of
SPDIF, AES, USB and clock.
The digital inputs SPDIF coaxial (or optical) and AES operate simultaneously. An additional
Sample Rate Converter decouples the SPDIF or AES clock for even simpler setups, and also
supports up- and down-sampling of the input signals. SPDIF optical also supports 2 channels of
ADAT operation, at up to 192 kHz.
When used as USB interface, the Class Compliant UAC 2 mode can be set to Stereo or Multi-
channel. Multi-channel mode turns the ADI-2 Pro into a 6 channel (Analog 1/2, AES, SPDIF)
record and 8 channel (Analog 1/2/3/4, AES, SPDIF) playback audio interface, that even works
as iPad front-end up at up to 192 kHz sample rate. In stereo mode sample rates up to 768 kHz
are supported, for high resolution recordings or PCM, DXD and DSD record/playback.
The servo balanced analog inputs and dedicated balanced and unbalanced outputs are fitted
with both XLR and 1/4" TRS/TS jacks. The unit uses a fully balanced and DC-coupled circuit
design, for highest phase accuracy at lowest roll-off. The only capacitors in the whole signal
path, non-polar MUSE audio capacitors from Nichicon, reside directly at the input of the unit
(DC protection).
The two Extreme Power headphone outputs provide reference sound and headroom. RME's
Advanced Balanced mode not only adds balanced phones operation to the feature list, but also
premiers a new concept on improving the balanced mode even further.
To maintain the full dynamic range within the best operating level, discrete 4-stage reference
level settings were realized for maximum dynamic range (+4, +13, +19, +24 dBu). Also avail-
able are 0 to +6 dB digital trim for fine input sensitivity adjustment in steps of 0.5 dB.
The ADI-2 Pro supports all sample rates between 32 kHz and 768 kHz. Furthermore, RME's
SteadyClock III guarantees exceptional performance in all clock modes. Thanks to a highly
efficient jitter suppression, the AD- and DA-conversion always operates on highest sonic level,
being completely independent from the quality of the incoming clock signal.
The ADI-2 Pro shines in both studio and home usage. Its click- and noise-free on/off operation
and a comfortable, illuminated standby button add to the soft, modern desktop design.
Mobile and galvanically separated usage is possible through a 12V connector for easy battery
connection.
User's Guide ADI-2 Pro © RME
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