Thank you for your kind words. We try and make the very complicated as simple as possible without creating more "distortion"

Glad you liked it!

Glad you liked it!

Good job Dennis! Good videos. Directional does help in midrange and high range. I prefer round dispersion of towers instead of point source book shelf speakers.

The corners of any room are never the issue. Room modes are produced by a minimum of two parallel surfaces. It is the whole wall surface that must be treated.

Thank you for your kind words. We try and take the very complicated and simplify it down into examples that illustrate at least the general concepts trying not to add any more distortion to the acoustic field.

What is the frequency response range of that decay rate?

Wow I would take 4 18" subwoofers plus a miniDSP any day of the week. Than a decay time of 2-3 seconds at ANY frequency range.. ..but I am a 2ch music guy (using 2 18" OB already, and if you never experienced OB it is time to do that! Cancelation effect on the end of the baffle makes them to load the room FAR less in a 8 pattern than a 18" in a box that makes it omnidirectional) and not a home theater guy that need something to shake for several seconds.. The worst I have seen is 1 second at 20/30 Hz. No DSP and no treatment.. I do not remember my measurements but something ~0.5 @20 Hz and all the higher is @0.3s. Imagine some frequencies leaving your woofer and still bouncing around in your room after 2-3s that is catastrophic in my book as you will have hard time to hear texture and tone when the previous note is still hanging around and you can not hear the next one (smearing). Maybe that works as impressing a friend the first minutes but very tiresome in the long run. But home theater is not listening as it were music. HT is effects and sudden bursts in musik it is more a repetition over and over with some shanges as melody. So probably more anoying wit music. Try to play som bass rich music and hear what is happening? 🤔🥰

@@AmazonasBiotop You're right. Open baffle, simply by it's inherent dipolar output prevents that destructive pressurization energy overlay ... that plagues monopole bass sources in rooms. Siegfried Linkwitz for the win.

There are many variables to consider. Its always a balance between quality and quantity. Smaller drivers are more resolute with less output. Larger drivers are less resolute but produce more output. You must then examine the average pressure level used within the room size and volume and then decide what you are wanting to achieve in the total presentaion value.

The center channel feed is split into a left center and right center signal. All front of the house speakers are the same.

@@AcousticFields Why split into a left center, and right center?

@@FOH3663 To keep the soundfields consistent. When you have high resolution rooms, everything is heard and everything matters. The soundfield generrated from center channel speakers is not consistent in its distribution array with the left and right channels.

In my moderately treated room, phantom center produced poor localization (all but the MLP are off axis) and excessive comb filtering (typical of a mono signal emitted by two sources), which I corrected by placing behind my AT screen a C speaker identical to the L and R speakers that achieves a consistent sound field.

Can you be more specific or are you just complaining for the sake of hearing yourself.

@@AcousticFields i hear myself crystal clear without the bs , of chalk on blackboard . where's the actual speakers the actual test tones and stuff being used to show in actual practice rather than a blackboard all the time . i do happen to have 165 IQ score so i know when there is some bs and so do many others . honest is the best way . i read around and everyone is saying , scam . to trick those that are less savvy and spend out $ tens of thousands . the thumbnails are misleading . once click on its a blackboard . i saw blackboards when i was at school 45 years ago . i not seen any practical videos of speakers and stuff placed around a room or same test done outdoors . or in the area-51 desert where there is miles of open space to do speaker testing till blue in the face . to show what actually happens with long wavelength frequencies , not on a blackboard . just like , gr research a load of talk and no actual measurements . when i and others can show something not that it's going to be applicable to anyone else ? bass traps a load of bs . room treatment on the walls so i don't hear the rooms bare walls when clapping my hand or popping a balloon . and yes i can still hear directional sound from x5 JBL 4673A behind my at-screen along with x11 side rear wall surrounds in correct way as cinema . none of that one pair for the sidewall with rows of seats , that's not how it works ? and a lot more besides that . and as for hearing myself you mean , ego ? or am like some dog out there yelping ? lol woof , woof .

The room only sees energy. It could care less what the source is no matter how technically specific the source . You must balance the energy input into the room with the distortion output of the room.