Msb dacs why not alot of postings

Not sure where you were looking @hgeifman but the Discrete DAC comes standard with:

Digital Inputs:

1x RCA Coaxial
1x XLR
1x Word-Sync
2x Toslink
2x Advanced isolated input module slots

And ... XLR Analog Outputs (comes standard with them)

It also comes standard with one (outboard) Discrete power supply. The second one is extra if you opt for it to separate the power for the digital and analog boards.

I know. Because I own one

@thyname,  Thanks for the information.  When I priced out the MBS Discrete DAC, they said the options I wanted were extra costs.  In any case, I understand what you are saying.  Thanks.  

There are two empty slots. Modules. That is IF you want to add extra. I did buy one, the ProISL/ ProUSB module combo.

What I copy / pasted above comes standard. I can assure you of that. But you can look for yourself:

https://www.msbtechnology.com/dacs/discrete-dac-options/
I also understand what you are saying too. Very expensive for you, and obviously you will find extra many stuff to make it even more expensive to justify your thought process. Human nature

@thyname,

One thing I really appreciate about MSB DAC’s is their modular approach. Maybe someday I get an opportunity to audition a MSB DAC in my system :-)

One thing you can't find on MSB website is measurements. They posted them at one time then removed them.