Speaker placement

What does Bob charge?

Maybe BOB can teach the OP.

Some folks learn BETTER with a hands on approach. I do.

Show me, then I know. 

Now ALL the stuff you should be reading will make sense because BOB will be nice enough to explain it and show you a few tricks to fine tune the system to your taste..

If Bob has a reasonable fee and YOU have the money to spend AND want to learn Bobs way... Why Not.. Then share if BOB is a good teacher, or LOL, Robbed your silly a$$ for hiring BOB fresh out of Local State Pin. He learned a trade INSIDE..:-)

Enjoy in any case.. Lot of help right here IF you really want to do it.. Your call..

Regards

By ear? Sorry OP no measurement?

You LOST ME.. How you gonna know what the heck is going on in a "DIFFICULT ROOM" (Your quote not mine) if you don’t take at least some SPL readings in the corners and seated position. HIGHS and lows it will tell you a LOT. 10 to 1 right in front over your head, treatment there alone, will tame all kinds of HF energy.

The BACK wall, normally the first reflection point is pretty important and Major control point for OVER loading a room. Decay rate is VERY important.. How LIVE is that flippin’ room and where are the hot spots..

3 way to heaven. Trap a frequency, control a frequency, or LOSE a frequency. It still boils down to room correction mechanically and tailoring the sound with Tone controls (parametric and some graphic EQ) and if needed time delays. Heavy curtains are your friend believe me.. You can draw or open for room correction and they look nicer than the stupid room treatment panels.. Some are, ARE, JUST UGLY dude...:-)

Corner traps. Some are a WHOLE lot better than others.

Master M can tune in.. He always has a goodie or two.. helmholtz TECH

Difficult rooms, 6-7 foot ceilings those are REAL tough..

Kitty Corner in the room is that an option? Decware https://www.decware.com/paper14.htm has a great article about just that type of room..

It’s all pretty cheap BUT it does take time to learn it.. Week or two you aught to be a pro.. LOL Charge BOB 500 and a smaller fee for travel..

Regards

Crap the dog erased my response.. No kidding..

WOW that is a big open room.. you did a LOT more treatment than I would have EVER done.. you did a GREAT job there..

2 channel right? Turn off everything BUT the mains, and pull them out from the wall. 4-5 feet to begin with.

Set the cut points for the mains, 50hz is going to be a push in that BIG room.

Get the center phantom the way you like. Nearfield is gonna have to work, kind of a nearfield. The toe is going to be very critical. Get your phone turn on a SPL app and make sure the the DB level is the same left to right at the seated position. 50, 300, 700 1k 5k, 8k. You know the drill tone burst readings..

How do you adjust that? One speaker one inch further back and 1/16 " MORE toe in will do a LOT for db levels.. 1/2 inch at a time, BACK and reset the toe. To get real techy top to bottom too, TIP it forward tip it back.. Even left to right can change a lot of issues an EQ can't.. Mechanical EQ first, then gear EQ..

NOW

3-4 small 8-10’ IB subs.. NO PORTS. It would be nice if the plates had variable phase up to 180, delays an PEQ would be capital..

Turn them on 2 at 50hz 2 at 40hz, (I’m close with those high ceilings).
The steeper the ramp the better too, 12-24 db 2nd to 4th order XO.
A 6db first order is a NO NO in that room.. Set the plates at the 1200 position (GAIN)

Your going to have issues..
ALL PEQ (DSP) and main placement.

NOW

Coherence and width of soundstage in a NF,

PUSH the speakers BACK toward the back wall 1/2 inch at a time, keeping the TOE in, the same as before you turned on the subs.. Use blue or green tape to keep it straight use a square to keep your toe.. (Roofing square is a great tool also). REMEMBER your DB adjustment left to right.. Keep that number correct (+ 1/2 or 1 inch and the toe setting)

The further back you go the better UNTIL it just starts to get muddy and turning DOWN the gain to 11:00 doesn’t fix it. THEN pull the speaker back 1/2 the distance from the LAST movement.. as little as 1/4 of an inch..

11:00 to 1:00 on the sub gain depends on the music. Classic to Hip Hop..

That’s it.. But just so you know I like ear buds.. LOL Just kidding..

The corner SPL were for wolf, he spent a lot of time there as a kid..
I hadn’t seen the room Mr smarty pants.. LOL It’s a doozie!!

Regards