Comparing Chord Qutest Dac with the Built in Dac in Lumin T3 Streamer

• My system is as follows:
• 1. Martin Logan 11A impression speakers. 
• 2. Conrad Johnson Power Amplifier Classic 62   
• 3. Rogue Pre-amp     
• 4. Lumin U2 mini streamer 
• 5. Chord Qutest Dac

Seeking to upgrade by replacing the Lumin U2 mini streamer and the Chord Qutest Dac with the Lumin T3 streamer.  I would use the DAC that is built into the Lumin T-3 streamer. 

Would this be an upgrade? I short, does the Dac in the T3 sound better than the Chord Qutest Dac. Would appreciate any advice. Thank you.