in phase and in time matters at all frequencies, if we are talking optimization. how perfect do you want it? mostly this matters as a result of how dynamic we expect to run our systems. at low SPL’s no doubt time is less an issue since the negative effects are minimal. but at warp 11 when the music is borderline falling apart; time and phase issues makes it all a mess.
i have twin tower speakers; one tower is a 86" tall, 750 pound stack of 4 15" active subwoofers, high passed at 40hz. the other tower is an 82" inch tall 750 pound passive tower. exactly aligning these 2 towers equa-distant to the listening position makes a musical difference.
the idea is you want a perfectly timed wave launch from all the drivers if you can do it.
btw; the sound is really fine when the 2 towers are not perfectly aligned, but better when they are aligned. this is an analog approach to subwoofer set-up and time alignment. so i would not argue with anyone who said that time alignment of subs was not important. these type things don’t matter the same to everyone, nor should they.
how perfect do you want things to sound?
i have a separate room with a Home Theater. with an LFE channel. the idea is the same, but the approach and solution is different. in this case i will be using a minidsp with 3 Funk Audio 18.0 subs (i don't have room for '4') arrayed around the room then this total result will be one channel into a Trinnov Altitude 16 processor. part of my set-up will be using a mic to adjust the delay to get all the subs exactly time aligned to my MLP (main listening position). then tune the 3 subs for best room response.
so when all hell is breaking loose, it will be more satisfyingly breaking loose and the truth of the recorded event will be fully enjoyed. many people don’t really care about that. i’m not ’many people’.
i have twin tower speakers; one tower is a 86" tall, 750 pound stack of 4 15" active subwoofers, high passed at 40hz. the other tower is an 82" inch tall 750 pound passive tower. exactly aligning these 2 towers equa-distant to the listening position makes a musical difference.
the idea is you want a perfectly timed wave launch from all the drivers if you can do it.
btw; the sound is really fine when the 2 towers are not perfectly aligned, but better when they are aligned. this is an analog approach to subwoofer set-up and time alignment. so i would not argue with anyone who said that time alignment of subs was not important. these type things don’t matter the same to everyone, nor should they.
how perfect do you want things to sound?
i have a separate room with a Home Theater. with an LFE channel. the idea is the same, but the approach and solution is different. in this case i will be using a minidsp with 3 Funk Audio 18.0 subs (i don't have room for '4') arrayed around the room then this total result will be one channel into a Trinnov Altitude 16 processor. part of my set-up will be using a mic to adjust the delay to get all the subs exactly time aligned to my MLP (main listening position). then tune the 3 subs for best room response.
so when all hell is breaking loose, it will be more satisfyingly breaking loose and the truth of the recorded event will be fully enjoyed. many people don’t really care about that. i’m not ’many people’.