Suggested upgrade paths

Just thought about my statement. If it's not the room, you're going to find the source by starting to change out the equipment. @pmm is most likely right. i had Klipschs Heresy IV, and I found the highs were fatiguing. After about an hour, that was enough listening. I was relieved when I sold them.

. The Wharfedales I had thought of replacing. Im happy with them at lower volumes. Not so much of a fan of the tweeter. The Rotel can be neutral to bright. Depending on what music is played. Any recommendations on replacement speakers? I like a warm sound. It may be a combination of everything and may require an extended budget, over a series of years.I would like to stay within a 5k budget for now.

Used Harbeth Super HL5+ XD. Be careful on model number easy to mess up for they has updated over the years. $5k plus or minus. Audiogon, The Music Room and US Audio Mart has them.  I bought a used pair of Rosewood and I’m very happy with them.

They are called “Bookshelf” speakers. I do not no of any bookshelf that is large enough for the Harbeths to fit.

Note: The Ton Trager Stands are not California certified. Just joking but they will not hold up to some earthquakes. 

Buy a better pair of speakers! Go to ASR (Audio Science Review) and check out the reviews.

You will always eventually need a better DAC. IMHO all internal DACs are a compromise in lower end components.  Bite the bullet and check out a Denafrips Venus 15th. I am sure it will smooth things out. Start at your source and work your way out. @audioman58 sells them for a discount.  Run the A6 into it. Get a good quality USB cable too. Next consider speaker upgrade down the road. Good luck.