Originally Posted by BrolicBeast
Oh nah I didn’t take it that way at all. Before I posted these curves, I knew there would definitely be questions! I was trying to get as detailed as possible as to the how and why behind the modes. In retrospect I probably should have made most of my above response a totally separate post about the journey to generating the modes, since I went on several tangents. Lol. I know if I saw unconventional curves on another thread, I’d immediately wonder what was up too.
But.....I have something I’d like you to try out if you get a chance on top of your current baseline (which, given the calibrator, is about as good as is possible in this hobby). What I found really worked well, and in my mind, I really envision us having the same system (lol!), please try a 7db boost at 17 Hz, but begin the slope at 60 or 70Hz. Have the increase very mild until you hit 30Hz, and then increase the incline of the slope more aggressively. This is what I did on Movie Experience mode before doing the additional EQ on top of the shelf (The Movie Experience mode is the one I use for regular movie watching and it’s what all other modes are based on) . I’d really love to hear what you thought of that shelf with that slope configuration in your system.
You know I’ve valued your opinions over the years, and the majority of our exchanges probably involve me asking you equalization questions. Lol.
Do give some thought to what audioguy is pointing out. Yes, having a flat starting point like he posted of his system means you do know what any extra filtering is doing to the response. His point about the upper bass dip is absolutely something to look at, and something I am confused on looking at your graphs...
What is this measurement condition of this graph that looks so smooth:
vs this one?:
Was one with the main speakers on and one without?
Without seeing what the front and rear subs are each contributing on their own with EQ bypassed, it's impossible to say what you can or can't do about it beyond just boosting the range.
I might have missed a relevant post, but I was also curious if the different modes were simply higher sub channel levels or if you adjusted the low shelf filters for each setting? Straight raising of the sub level for a "lets break things" mode will leave too much clouding of dialog and otherwise too much upper bass. The trick is to find a balance and suitable tilt vs elevated sub level that makes a smoother transition to the main speakers. That overall tilt affects the punch, loudness, articulation, and intensity vs low end effects, scale, weight, and pant-leg shaking.
I certainly have a good feel for making adjustments to shelf filters and overall level on the fly while listening for final preference, but you need to keep spot checking to make sure you didn't inadvertently create an odd interaction elsewhere, and to insure the changes are doing what you expect them to. I've occasionally been surprised on all of those accounts, where measurements quickly helped identify, diagnose, and correct any such unexpected result.