I run Multiwave (primarily PS2) on my P300 during listening sessions and shift it to Sin (60 Hz) mode when I'm done to keep electrical costs down (my equipment is on 24/7). If during a listening session I switch back and forth between a Multiwave mode and Sin mode at anywhere between 60 and 90Hz (90 is the best-performing Sin mode with my system), the Sin mode tends to sound less airy and transparent, the soundstage shinks slightly, and the images seem somewhat less palpable. Hope that helps.
PS Audio Multiwave-good or bad?
I know a simular thread was written some time ago when the multiwave option was very new, but now hopefully there are many more users. I own the P-300 & am very satisfied with it. I consider it to have made a huge sonic improvement to my system. I'm curious to know what kind of improvement I could expect from the multiwave option. Is it worth the $250.00. Please be specific on the sonic improvements. Thanks in advance...Sagger