Hi, I upgraded from the 400 to 1000.
I loved the 400 cd player but love the 1000 even more. The 1000 give you more detail, openness, dynamics, better quality bass and treble and a more accurate presentation.
In some ways the 1000 is less romantic than the 400 because the 1000 is more accurate.
The 1000 offers a big improvement with orchestral pieces where its superior dynamics come into play.
You should contact your dealer who should be able to help you with the upgrade.
I loved the 400 cd player but love the 1000 even more. The 1000 give you more detail, openness, dynamics, better quality bass and treble and a more accurate presentation.
In some ways the 1000 is less romantic than the 400 because the 1000 is more accurate.
The 1000 offers a big improvement with orchestral pieces where its superior dynamics come into play.
You should contact your dealer who should be able to help you with the upgrade.