I realized you've already committed to a specific upgrade but I'll add my 2 cents anyway. As important as a DAC may be, the transport is at least equally significant. The elimination of vibration and an accurate reading of the disc is where all the sound originates. If that part of the system is inferior, everything which follows will suffer.
That being said, if you ever want to jump into the DEEP end of the CD player world, probably the best CD player ever made is the Naim CD555, coupled with the Naim 555 power supply. It's even better when using two of the 555 power supplies, one to power the analog circuitry and the other to power the digital circuitry. This is what I use along with a very high end analog system. (Kuzma Stabi XL DC turntable w/ the Kuzma 14" 4 point tonearm and a Koetsu Rosewood Signature Platinum cartridge) All of this plays into a Naim Statement system and then into Grandinote Mach 36 speakers. All the cables are Luna (Noir).
Anyway, the Naim CD 555 is very expensive and is no longer in production (since 2017) but you can occasionally find one on the used market (as I did) for around $15,000 (including the power supply)
That being said, if you ever want to jump into the DEEP end of the CD player world, probably the best CD player ever made is the Naim CD555, coupled with the Naim 555 power supply. It's even better when using two of the 555 power supplies, one to power the analog circuitry and the other to power the digital circuitry. This is what I use along with a very high end analog system. (Kuzma Stabi XL DC turntable w/ the Kuzma 14" 4 point tonearm and a Koetsu Rosewood Signature Platinum cartridge) All of this plays into a Naim Statement system and then into Grandinote Mach 36 speakers. All the cables are Luna (Noir).
Anyway, the Naim CD 555 is very expensive and is no longer in production (since 2017) but you can occasionally find one on the used market (as I did) for around $15,000 (including the power supply)