DAC upgrade?


Hello, I was hoping to get some insight and opinions on upgrading my DAC. I currently am using a Rotel A14 integrated amp and am using the internal DAC of the Rotel. I can't seem to find any specifics regarding the DAC other than its anĀ 

AKM 32-bit/ 768kHz Digital to Analog Converter. The amplifier is powering a pair of Totem Staff speakers and do most of my listening with digital lossless media (ALAC, FLAC) output from a Mac mini and using Audirvana.

I certainly do not consider myself an audiophile but I do enjoy good sounding music. Do you think upgrading my DAC would be beneficial? I wasn't wanting to spend too much on a DAC but was wondering if something like the Schiit Modi multibit, Topping D50 or comparable would provide a better/different sound?


Thanks in advance and look forward to your comments.

downingp
Have you tried the system optimizer within Audirvana?
For sure wakes up my Cary Xciter DAC.
Got nothing to lose by flipping a switch.
Now I am going to have to investigate... never heard of extreme.
Oh yea I use the optical interface between my mini and the dac.
I think, at this point anyway, I am leaning towards either the Topping D90 MQA or the Gustard A18.