Originally Posted by Tim Reams
So i will be getting ready to begin buying the components of my 1st non-HTiB setup and i am looking for suggestions.
...My goal is for strong bass but also clean crisp surround with proper staging. ....
I'm seeing doors and a closet in the corner, but no windows... but you've clarified that it's an old house, main level, with openings to other rooms - you have an acoustically leaky room, which is far easier to optimize than a soundproofed room made of cinderblocks!
There are two sides the your question, and you're only asking about one. "Loudspeakers and Room
" is the subtitle of Floyd Toole's book, summarizing 40 years as a PhD researcher in audio. You never have a speaker without a room, and both have equal say in your listening experience. Speaker design and placement will be a major factor in room audio quality, as will listener placement.
The first recommendation is cheap and has no alternative. Move the sectional at least 1 foot out from both walls
. Bass is ALWAYS BAD close to walls, so there will be no good seats on the couch until you do, no matter the subwoofage installed.
The room shape is a disadvantage, especially if you have normal 7.5-8' ceilings, as that's 1/2 of the 15' room dimension. As a result, all your room modes coincide, so you'll have strong peaks at multiples of 37Hz. (speed of sound, 1130 ft/sec., divided by room dimension, 15', then divided by 2 gives the lowest frequency standing wave) Subwoofer placement can address this to some extent, and very inexpensively as well, simply by avoiding corner and mid-wall placement. Corners excite all room modes, and explaining any more gets complicated. Regardless, the idea is that careful sub placement allows you to minimize the energy you put into the room modes, leading to more uniform bass.
From there, bass quality will depend on room details I can only speculate. Room modes require reflected energy, and my room is good because it leaks. The doorway(s) will leak bass, and you'll have a secondary resonance well below room modes as a result. Windows leak bass, and fabric upholstery on the sectional will have substantial acoustic affect (leather/vinyl have no affect). Just being an older building and above grade help a lot.
By way of gear, I build speakers so can't recommend specific commercial speakers. Do buld you own subwoofer, perhaps as end tables. Get an AVR with the HDMI connections you want, but also with some sort of room correction routine like Audyssey or a proprietary one (Yamaha's YPAO, Pioneer's MCACC, etc.). Also consider spending a bit on a 7.1 capability (or at least a line level output), so you can add front wide or rear speakers to your 5.1 layout. I use front wides in a 22x15 room because the TV is on the long wall. You might use them in the front corners, as I expect the closet will keep your LR mains close to the screen.
And keep asking...