I heard the Lumina 1 live with a Marantz, and they sound beautiful, though perhaps a little warmer because of the amplifier. I started looking for a powerful, slightly more neutral amplifier to drive such demanding speakers, and the choice fell on the Arcam A15. In the meantime, I came across a promotional discount where the Arcam A25 was at an incredible price, even lower than the A15. The Sonus faber speakers suit my tonal preference, but due to my budget, I'm going with the Lumina 1, and probably the Soneto in the future.