The Sophia is a lot easier to choose an amplifier. VTL Stereo 150 with a VTL 5.5 preamp is an amazing combination with Sophia's. Throw in some Transparent Super MM cabling and you have a winner.
For the WP's you need to be more critical of system synergy and spend more on an amplifier...
What components does he already own and how much does he want to spend?
For the WP's you need to be more critical of system synergy and spend more on an amplifier...
What components does he already own and how much does he want to spend?