Because I'm going to do timing, phase and fr up to 300 on genelec GLM.
Do you mind showing me a screen shot where it is located? Many thanks!
I know you have nice gear but not sure if your overheads play down to 50Hz measured in room? If not does ART default them to a higher Hz range for F support low? Nate's question has me curious.Jinx is what we used to say when we answered at the same time as kids
I can assure you that ART does set FSL higher when needed. My overheads are M55xcs and ART sets them to 75 Hz. I think that's still optimistic and change that to 100
Thanks!! Yes I don’t have that. DIRAC thinks it’s a glitch. I need to try and run a fresh calibration. Hopefully this is what is causing my klipsch tower issue.
It is good that Joss is confident, but not that simple. Do you really want to stretch your tower that goes F3 at 30hz in the room to that frequency despite the distortion that that would cause. Perhaps, but I would do it only if needed. And perhaps Joss is thinking also of giving ART more options if available.
All my prior calibrations with various flavors of Audyssey usually set the crossover for my m55s at 150Hz. Looking at Amir's Klippel test results for them shows them already down almost 5dB at 100Hz. Based on that I think 100Hz is even optimistic. Given I've got 4 good subs scattered around the place doing support I see no reason to run them even lower.
I agree - will depend and good subs are generally going to be sufficient. I would still want speakers with F3 of 60hz all around if possible that could pick up with authority at 80hz. That would help with localization of bass to the extent coded in specific channels and avoid localization of LFE bass over 80hz which is the point where some people start to experience it.Should be true with the exception of the wording whole system, ART only works between 20Hz and 150Hz so within that frequency range should be true is my answer. I would think as with anything it is situationally dependent.
The more drivers that work in the 20Hz-150Hz range the more options you are giving the AI within Dirac ART for correction filter options. If there are only 2 speakers the options are limited, if there are 21 obviously the AI has a lot more work to do finding the best combination but it has way more options. As a user you determine what is "available" to the AI. Not only what (group or speaker in my case) but where (what frequency range is available) and how much (support level) you are offering. AI figures out "the best" solution and presents the filters. As an advanced user then you can review each group and the filters applied to make sure they are ok for you, compare them to other "snapshots" (saved filter calculations), and make any adjustments you deem fit. You can calculate over and over again until you are content and then upload your final result. Then crank it and see if anything is going to break
In a nutshell my opinion is that every room and system are different so "it depends". I know if I was building from scratch now I'd still do it the same way (best quality speakers I could $tomach in each position) and at least one sub on the left side of the room and one on the right (that's my preference, one good sub would probably do). If I already had say "poor performing" surrounds I would try adding subs because it is easier for placement and cheaper most likely. I could imagine ART making a good system out of bookshelves that can do above reference volume levels at 80Hz with say 4 subs that perform from 20Hz to 150Hz. I could also imagine 5 quality speakers that all hit reference levels at 40Hz and one sub the performs from 20Hz to 100Hz working similarly as well depending on the room.
You would need to measure your large speakers without subs and see what they are doing with 30hz range. I still believe that Joss is speaking of options, rather than actual applicability in larger systems.
