Audio aero capitol reference cd - upgrade


My audio aero capitol reference has loud bass which is not tight & lacks resolution compared to my Marantz SA11S1.

I hope a capitol SE upgrade will help

What make the major difference -

*capacitors ( teflon V caps r easly avalable for $100)

*Cryo" tubes

How much does the Official upgrade cost?

inputs welcome & will b helpful for me

Thanx in advance
masilu

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