But I am also aware of reports of less than stellar performance improvements in some cases, and these interest me; I am just trying to bottom these out.
I’m not disputing those who heard small improvement from HMS but as a user of Hugo1 then DAVE and finally HMS, I’d like to offer some possible explanation.
From sound perspective, to me, there is no significant change in tonal balance by adding HMS, image size is also the same, so if you mainly look into that area you’ll hear no major difference.
Those who eagerly anticipate to hear what is added on the sound might be dissapointed, because at least for me, it is what being eliminated from the sound that is the star of the show here (tension and brightness)
I can also imagined people expecting too much of a jump by adding HMS. For as good as the improvement it brings, personally I only see it as a half point upgrade from my single DAVE, more like DAVE version 1.5 than DAVE 2.0.
For me the jump from HUGO1 to DAVE is higher than this HMS add on.
Last thing, while I believe those who frequent summit-fi on head-fi is highly sophisticated enthusiast and comfortable in setting up their own system, mistake can happen to everyone. So maybe when a person heard only marginal improvement, they set it up incorrectly, because as good as digital technology has become, the fact that digital chains usually consist of many components from various manufacture who were basically force to work together, mistake can happen at many point in the process.
How does the delay of the M Scalar work with videos? Will it be out of sync? (just read something about the delay just now so no idea how it works)
To give illustration about the lag I’ll take Youtube of Disturbed singing The Sound of Silence (official music video version) as example, around 1:00 mark, when David Draiman (the band’s vocalist) singing the lyric “within the sound...” the audio started just when he about to finish ‘within’ and half way before he finished saying “...of silence” (that mean ‘of sil...’) the audio kicks in.
Overall I estimate the lag is less than one spoken word, not that much really, BUT what annoying is the disconnect when you see the video showing closed lips while the audio showing the vocalist still shouting out loud.
Enganging video mode solve the lag problem while still sound amazing (some smoothness is gone in video mode, but I feel it’s still way better than single DAVE so I think I wouldn’t lose any sleep over it)
Happy Listening