ADI-2 Pro/DAC Models - Differences and Release Dates
# Model Release
Date
Rack
Mounts
Remote FS
Clock
Auto
Dark
 DAC Chip SRC Digital Inputs Analog
Inputs
Digital
Outputs
ASIN (from Amazon) Comments
1 ADI-2 Pro 04/16 Yes No No No 2x AK4490 Yes AES, SPDIF (opt.+coax.) Yes Yes    
2 ADI-2 Pro AE 05/17 No No No No 2x AK4490 Yes AES, SPDIF (opt.+coax.) Yes Yes   Transp. top, stylish/higher HiFi feets
3 ADI-2 DAC FS 12/17 No Yes Yes Yes 1x AK4490 No SPDIF (opt.+coax.) No No B081CWQXGD  
4 ADI-2 Pro FS 03/18 Yes No Yes Yes 2x AK4490 Yes AES, SPDIF (opt.+coax.) Yes Yes    
5 ADI-2 Pro FS BE 09/18 No No Yes Yes 2x AK4490 Yes AES, SPDIF (opt.+coax.) Yes Yes   Stylish black case without rack mounts
6 ADI-2 DAC FS 11/19 No MRC Yes Yes 1x AK4493 No SPDIF (opt.+coax.) No No B07B6C8PF6 Newer DAC, MRC
7 ADI-2 Pro FS R BE 01/20 No MRC Yes Yes 2x AK4493 Yes AES, SPDIF (opt.+coax.) Yes Yes B07L6KLPWT Stylish black case without rack mounts
MRC  Multi-Remote Control (MRC); Older ADI-2 DAC can use the MRC by updating their firmware to v32 or higher.
AK4493 Slightly improved specs and added D/A filter "SD LD" (Short Delay Low Dispersion)
SRC  Sample Rate Converter
Analog Inputs Line level. For microphone operation use external mic preamps.
Digital Outputs ADI-2 Pro's: SPDIF optical (ADAT compatible, ch. 1+2). Via breakout cable: AES/EBU and SPDIF coaxial.
Digital Inputs ADI-2 Pro's: SPDIF optical (ADAT compatible, ch. 1+2). Via breakout cable: AES/EBU and SPDIF coaxial.
Digital Inputs ADI-2 DAC's: SPDIF optical (ADAT compatible, ch. 1+2) and coaxial.