I just got home from California about two hours ago and shortly thereafter began running the Room Perfect calibration. The calibration process is very similar to that of the MEN220, except that you have to enter the distance in inches from each speaker to the Focus position before beginning the calibration, and of course it has to run the test tones for all of your speakers, including the sub, instead of just the left and right that the two channel MEN220 does. This means that the MX150 takes about 5 minutes per room position to run through the test tones. After running five room positions, the MX150 had acquired 97% "room knowledge", so I called it good. I listened to a couple of songs from the multi-channel SACD version of Elton John's Goodbye, Yellow Brick Road, and noted very similar improvements to those I get from using my MEN220 with the two channel portion of my system.
More to follow when I get back from our weekend trip to Dallas and have a chance to do some more listening.
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John
Houston Upstairs - C1000C/T, MX170, MC1.2KW x 4, MC501 x 2, MC252, MVP881, MCD1100, MDA1000, MEN220, MPC1500, XRT1K's, XCS1K, XLS320's, Gotham, Sony VPL-VW675ES, Sony XBR-55X930E, Panasonic DP-UB9000, Apple TV 4K, Kaleidescape Strato C, Roon Core on Nucleus & MS600
Houston Downstairs - Den (Zone A): MX122, MR88, MCD500, MVP871, MC207, DD18, Sony XBR-75Z9D, OPPO BDP-203, Sonos Port, Apple TV 4K, Sooloos MS200, B&W 805 Diamond x 2, B&W HTM4 Diamond, B&W CWM8 x 2; Living Room (Zone B): Sony XBR-65Z9D, MC402 & XR200's
Austin Theater - MX180, MC8207, MI254; Lumagen Radiance Pro; Kaleidescape Strato; OPPO UDP-203; Sooloos MS200; Apple TV 4K; Sonos Connect; Paradigm Signature S8 (2), C5, SIG-1.5R-v.3 (4) SIG-1.5R-30 v.3 (4), SUB2; JVC RS3100; Sony XR-85X95K; Screen Innovations Black Diamond 2.35:1
Austin Den - Marantz AV7701, MM7055; Paradigm Studio 10 v5 (2), Studio CC-590 v5, RVC-12SQ, SA-10R (2); Sony XBR-65Z9D; Apple TV 4K
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