I am a loyal fan of PWAudio. Compared with First TimeS and First TimeS Shielding, M.A.S. is more delicate and compact, and the sound field is not as large as F.T.S., but M.A.S. is more like the style of the 1950s. I first experienced this on Le Jardin line, but in a different style from the final version of M.A.S.