pippen99
Headphoneus Supremus
The suggested upgrade price is $9000. I believe dCS dealers have some flexibility depending on the dealer/customer relationship. The price to upgrade my Rossini to Apex was considerably less than retail due to our relationship. Since you would be buying used expect to pay full price. I cannot speak to the effectiveness of the Apex upgrade in the Bartok but the difference the Apex upgrade made in Rossini was significant.