Both XLR and RCA?


#1

I’m new to PS Audio and higher end audio and just setup my new S300 amp. Not much time on it and it already sounds great!

I was originally planning to connect it with RCA cables to my Auralic Altair streaming DAC but then decided to try with XLR cables. I originally planned to connect with RCA cables because I plan to use the S300 to drive the same speakers as fronts in a surround system and had planned to use my Emotiva UMC-200 surround preamp to select the source (Altair connected to the UMC-200).

Question I have is can I connect the Altair directly to the S300 XLR ins and connect the UMC-200 to the S300 RCA ins at the same time??

If not I guess I have to go back to RCA connects since the UMC-200 does not have XLR outs.

Thanks in advance for help.


#2

Welcome, Bob!

Unfortunately you cannot connect two source components to an amplifier at the same time. You need to choose either RCA or XLR.

From what I understand in your post, I suggest connecting the Emotiva UMC-200 preamp to the amplifier and connect the Auralic Altair to the preamp. Then use the preamp to select the source.


#3

No, you don’t want to tie two separate units to the inputs at the same time because they will fight each other as the inputs are in parallel.


#4

One additional note, the problem exists even if only one of the the two units is on at a given time. The simultaneous connection of two inputs is the problem.


#5

Elk and Paul, thanks for the quick and clear responses.

Clear that I’ll have to use RCA connects until I can add a preamp with XLR outs…maybe the Stellar DAC is in my future at some point. Since I recently added the Altair, which made a huge improvement to imaging, I wonder if the DAC in the Stellar DAC would be a significant improvement over the Altair DAC implementation. Does anyone have experience comparing these DACs? (Maybe this question belongs in another thread?)


#6

We are very loose as to what is on/off topic. As it is your thread, I say ask what you would like. :slight_smile:

But more people will likely see your DAC comparison question in an appropriately named separate thread in the DAC section.