Sorry, your description is too vague, please deliver more details.
Did I guess correctly that you are talking about the ADI-2 FS? Sorry, but you are using different fantasy names, this is irritating.
Please list the exact names of the devices in your setup.
Provide a connection diagram including the computer and
information about the type of connection (USB, optical or coaxial SPDIF).
Where do you feel limited by the current setup, what should the ADI-2 FS solve?
I question myself two things (and I hope the list of devices and connection diagram makes things clearer)
Case A) assumed the ADI-2 FS would replace the preamp.
From the manual, it appears that the ADI-2 FS has only a fixed volume for the XLR and TRS outputs.
Which means, you can't control the volume with the ADI-2 FS.
As power amps have no volume pot you would still need your Preamp, but then look at B) below.
Then I think the ADI-2 FS makes no sense in the setup.
Case B) Assumed the Preamp stays in front of the mono power amps and that ADI-2 FS is connected via optical SPDIF to your computer and has to perform the D/A conversion.
I see the following disadvantage: where is the benefit of high quality D/A conversion of the ADI-2 FS, if you connect it to the preamp, which might have lower quality? Does this make any sense? No.
Please deliver more details as requested.
Currently I have the 1st impression, that the ADI-2 FS doesn't bring you any benefit
as it can't replace the preamp which is needed for volume control of the mono power amps:
Case A)
Computer------SPDIF (opt. or coax.)------ADI-2 FS--ANA (XLR or TRS)-------------------Mono Poweramps
D/A conversion here
But no volume control
Volume control only possible
in the computer or the application.
Mighe be dangerous for your ears and setup
Case B)
Computer------SPDIF (opt. or coax.)------ADI-2 FS---ANA--------------------2.1 Preamp------------------Mono Poweramps
D/A conversion Volume control
Volume control by 2.1 preamp, but quality degradation of the audio signal most likely.
The possibly higher D/A conversion quality of the ADI-2 FS doesn't bring a benefit here.
Alternatives
Not knowing exactly, but assuming your setup and demands...
An ADI-2 DAC FS would have given you volume control, a remote and a lot of useful features:
- 4 reference levels
- auto reflevel
- dynamic loudness
- PEQ for normalizing headphones or to perform bass correction for the room
- a very nice ADI-2 Remote Application to remote control ADI-2 DAC FS, ADI-2 Pro FS R BE, ADI-2/4 Pro SE
Computer--------USB-----------ADI-2 DAC FS--------------Mono Poweramps
Volume Control
4 reference levels
Auto Ref Level to keep SNR/Dynamic high over a wider range
Remote
ADI-2 Remote SW
Alternatively these reference converters with even more features:
- ADI-2 Pro FS if you need also analog inputs or want to connect two headphones or balanced headphones
- ADI-2/4 Pro SE if you want to have more advanced features like connecting a turntable, even 5 reference levels, etc
Please check these information:
https://forum.rme-audio.de/viewtopic.php?id=32506
https://www.tonstudio-forum.de/blog/Ent … ses-EN-DE/
Benefits of Auto Reflevel, see this Excel:
https://www.tonstudio-forum.de/attachme … v003-xlsx/
BR Ramses - UFX III, 12Mic, XTC, ADI-2 Pro FS R BE, RayDAT, X10SRi-F, E5-1680v4, Win10Pro22H2, Cub13