User's Manual

User’s Guide ADI-2 Pro FS – v 2.5

Output

As can be seen in the block diagrams of chapter 17, in most modes all digital outputs carry the

same signal. The ADI-2 Pro then operates like a splitter/distributor. The input signal is con-

verted to several digital formats at the same time, and can be used up to three times (AES,

SPDIF coaxial, SPDIF optical or ADAT).

In USB multi-channel mode the AES output becomes playback channels 5/6, see chapter 17.4.

The output signal coding of the ADI-2 Pro has been implemented according to AES3-1992

Amendment 4:

• 32 / 44.1 / 48 kHz, 88.2 / 96 kHz, 176.4 / 192 kHz depending on the current sample rate

• Audio use

• No Copyright, Copy permitted

• Format Professional

• Category General, Generation not indicated

• 2-Channel, No Emphasis

• Aux Bits Audio use, 24 Bit

• Origin: RME

Older AES/EBU (and SPDIF) devices and record media can contain Emphasis information.

Audio signals with Emphasis have a high frequency boost, requiring high frequency attenuation

during playback. When using the ADI-2 Pro as audio interface to record SPDIF into an audio

file, the emphasis state is lost. See chapter 34.4 for details.

The option Digital Out Source - Main Out (SETUP – Options – Device Mode / DSD) sends the

processed signal Main Out 1/2 also to the digital outputs AES, SPDIF and ADAT, for example to

connect active monitors having digital inputs.

22.2 SPDIF

Input

Two SPDIF inputs are available, optical via TOSLINK and coaxial via the included breakout

cable, but only one can be used at a time. The input is the white RCA connector.

The currently used SPDIF input can be chosen under Setup – Options – SPDIF / Remap Keys

– SPDIF In. Set to Auto the input with a valid input signal will be chosen automatically.

The optical input also understands ADAT format, up to 192 kHz, but only channels 1/2 are

available.

To receive signals in AES/EBU format on the

coaxial input, an adapter cable can be used.

Pins 2 and 3 of a female XLR plug are

connected individually to the two pins of a

phono plug. The cable shielding is only

connected to pin 1 of the XLR - not to the

phono plug.