Bunky, What a nice setup you have, the Silverline's look great. What is the wood block under them, and where do you have them spiked? I'm surprised the Sphinx can hold your attention compared to what's available in your amp stable, it's flaws must be subtractive not additive? I hope to hear the Sphinx at the Capital Audio Fest later this month, Mark is sending one for John Gatski to use in his Everything Audio Review suite.