Two thoughts.
Why 48 and not 96 khz? I thought that was the standard for high resolution. B&W do this also.
Secondly, its not quite the sort of material that lends itself to HD anyway, although its not that crunched judging from the macbooks speakers.
I sort of don't mind this at one level, its a little Foo Fighter-ish but I don't feel quite the same connection. It also reminds me of a full tilt Arctic Monkeys, but that might just be a UK vibe.
Could be a grower. I like a bit more "soft loud" with my thrashing guitar music however.
I know they are a bit derivative but in this space (genre) I like bands like Brisbane's own Violent Soho.
I think this stuff deserves a revisit in a few days to see if it has "grower" potential.