Opinion please on further improving this already quite satisfying system.

I am happy to get this kind of quality, at the price point, but I am always tweaking to get closer to the orginal experience.

I listened to mostly classical, and female pop, and jazz.

The amp is 100 watts but it's not very extended either down or up - just the mid is satisfying.

The treble is not transparent, but I don't miss it for some reason.

I like the sound of using the computer as the source - less jitter, and more focused sound. Is the DAC in mbox pretty good, or can I add a DAC to it?

Thanks for looking, and responding...

Happy listening to you all.