Layout B-2

Windows behind your head

The same ≈280–420 Hz back-wall cancellation as Layout A, but the surface behind the headrest is Window 1 / Window 2 glass. Covering the windows is fine, so a 4″+ absorber mounted over W1 and W2 behind the headrest handles it — standing off the 2″ sills. With the A/C venting through W3, W1 and W2 can be covered all the way down.

Side-wall reflections

First reflections land ≈55–63″ from the north wall with the 65″ (≈53–62″ with the 77″/83″) — ranges that cover both reclined and upright seating, which is what the green bands on the plan span, so they hold still when you click the chair. On the east that's drywall; on the west it's the shut south door leaf — 2 × 5 glass lites. Since that leaf stays closed, a panel can hang over it, but untreated the two sides won't match.

On the east side the bounce clears the furniture: the file cabinets stop at 29″ and the door desk at 30¾″, while ears and drivers sit at 30½″ — so the reflection lands on the drywall above the desk, which is where that panel goes, spanning the same band. The metal cabinets and the hollow-core desk sit below the bounce, so they matter as resonators rather than reflectors, with the sub immediately north of them: foam in the drawer gaps, felt and a little weight on the desk, and butyl damping patches inside any panel still buzzing on a 20–200 Hz sweep.

Front-wall cancellation

With speaker fronts 28″ off the north wall, the reflection off that wall cancels a band around ≈120 Hz — above a typical 80 Hz sub crossover, so EQ can't fill it. Thick (4–6″) absorption on the north wall behind each speaker makes it shallower; measure before settling on the crossover.

Room modes

Front-to-back is now the 130″ dimension: the MLP sits on the peak of the 52 / 104 / 156 Hz modes, close to the 56 Hz height mode. Across the 158″ width, the centered MLP is in the 43 Hz null and on the 86 Hz peak.

Bookshelf behind the west LS50

The NW bookshelf sits ≈4–5″ from the west LS50, while the east side has open wall — so the west side will run bassier. Options: plug the west LS50's port, move the bookshelf, or measure and let room correction even out the sides.

Output at the MLP

At ≈8.1–8.5 ft instead of ≈9.5 ft, both pairs play ≈1–2 dB louder than Layout A for the same amp power, with wider stereo angles (≈48–52° LS50 outside, ≈37–42° Q3 inside).

Screen glare

The screen faces all three south windows and their transoms. Blinds and transom shades help; panels over the windows would remove the glare entirely, at the cost of daylight.

East side furniture

The 28″ bookshelf fills the NE corner. 4¾″ south of it sits the sub (see below), leaving the ethernet jack (≈28–32″) reachable in the gap. Flush south of the sub, the door desk runs along the east wall (47¾–127¾″ from the north wall, pulled 2¼″ off the south wall like the west-wall group), facing west: two leg cabinets with drawers opening west, the 80″ × 24″ door across them, nothing under the door between the legs (≈50″ of knee space), nothing on top, and the SE corner clear now that the wine rack has moved to the north wall (see the racks note). The 30″ bookshelf that had been in this corner is moved to the holding area. Seated at the door desk there's ≈28″ to the recliner's east side table. The SE leg cabinet sits ≈9″ from the A/C, and its drawers now clear W3's sill but still run into the A/C. The north end (cabinet + door, ≈31″ tall) sits in the east-wall reflection zone (≈56–63″ from the north wall), much lower than the old ≈63″ stack there.

West wall furniture

The recliner's former east side table sits in the SW corner against the south wall, facing east, its front flush with the desk front (5⅞–29⅞″ from the west wall, 118½–130″ from the north wall). The 58″ × 28″ desk sits flush north of it, facing east, pulled ≈1⅞″ off the west wall so its front lines up with the side table's (60½–118½″ from the north wall) — ≈13⅝″ from the single 10″-wide west side table beside the recliner (the second one is in the holding area) and ≈34⅝″ from the recliner. A file cabinet sits against the desk's north end, back to the west wall, drawers facing east (45½–60½″; its front ≈3⅜″ behind the desk's), ≈6¼″ past the active door leaf's swing. The west-wall reflection zone (≈56–63″) now straddles the file cabinet and the desk (nothing tall on top of the cabinet now), both below ear height, so a panel above them still works.

Audio racks under the TV

Two identical racks sit side by side on the north wall directly under the TV, 4″ off the wall to leave room for the cables behind them, meeting on the room's centerline (47.2″ wide together, 55⅜–102⅝″ from the west wall — inside the screen's width at every TV size). The TV's bottom edge has to clear their 30.3″ tops, so the screen sits high — tilt it down toward the MLP. The racks stay below tweeter height, ≈4¼–9″ from the inner Q3s depending on TV size, so the speakers' paths to you stay open, and cable runs to the TV and speakers are short. The sub sits on the east wall between the NE bookshelf and the door desk group, facing west (32¾–47¾″ from the north wall, 4¾″ from the bookshelf), pulled ≈10¾″ off the wall so its front lines up with the file cabinet fronts, ≈100″ from your ears. That's about a third of the way down the room's 130″ length, where the sub drives the front-to-back room modes only partway. In a simple room model it's the smoothest position tested: unevenness at the chair from 30–90 Hz drops to ≈10 dB (vs ≈23–24 dB under the door desk or beside the rack), the deepest dip is only ≈−4½ dB, and level is ≈3 dB higher than under the door desk. It's sensitive to position — ≈30–50″ from the north wall stays smooth, but by ≈60″ the deep dip returns — and real rooms usually show a smaller gain than the model, so measure. Room correction mostly has small peaks to trim. The wine rack now sits on the north wall flush against the east rack, facing south — that keeps the approach to the NE bookshelf open, but puts it ≈6½″ behind the east Q3 (and the inner edge of the east LS50 at larger TV sizes), so pack the bottles snugly against bass-sweep rattle.

Getting in and out

The active door opens beside the west speaker pair; with the speakers pulled back there's a ≈43″ walkway between them and the chair. The A/C sits ≈3¼ ft from your ears. Side tables flank the recliner, their backs level with the chair’s when it isn’t reclined (10″ off the south wall, clear of the sills): two 10″-wide tables side by side on the west and the 11½″-wide table — with the IR senders and headphone amp — on the east.