@jafant I don’t have an SPL meter. I can tell you that I don’t listen at ear-piercing levels. I used to use an AX-7 to drive Vandy 2s and I could get that combo to clip but only at levels too loud for me. My room is ~18x19 with a vaulted ceiling 8-12’ (plus two large openings on the rear wall). I have yet to hear the AX-5 clip with the 2.4s. If you like the Ayre sound and want more power you can move up to the VX-5 separate or a used V-1. The MX-Rs have even more power and should drive pretty much anything but you better come with deep pockets!