1. speak to Michael Percy from www.percyaudio.com for the internal upgrade path and compare with partsconnexion.
2. don't bother with external DAC under $1k.
3. by adding $1k to your existing sold player you can get realy great one-box such as ARC CD1(not sure if it's HDCD enebled but... just stop paying attention when the music sounds great anyway!).
4. don't upgrade at all and wait till you get $2k. the more you wait the less money is spent for an upgrade.
2. don't bother with external DAC under $1k.
3. by adding $1k to your existing sold player you can get realy great one-box such as ARC CD1(not sure if it's HDCD enebled but... just stop paying attention when the music sounds great anyway!).
4. don't upgrade at all and wait till you get $2k. the more you wait the less money is spent for an upgrade.