I love my Raven Labs PHA-1 for at home practicing. I use Sony MDR-7506 headphones and love what I hear. I wish I could get that same sound through my SWR heads and cabinets. Am I silly to think this is possible? I thought I read something some time ago regarding headphone comparison verses free standing speakers and the physics, math and all that "way over my head" stuff. You really can't compare the two............or can you? B.