Home office redesign · working draft · updated Sep 13, 2026

Layout A

TV centered on the east wall, easy chair centered on the west wall. The chair is the main listening position (MLP) for music, TV, and Vision Pro work.

Floor plan

TV size
Speakers

All dimensions in inches. Speakers are shown toed in toward the MLP as a starting point. Computed positions are marked ≈; measured ones are exact. The Speakers switch swaps in a single pair of Wharfedale Lintons (11.8″ W × 13″ D, 22.2″ tall on 17.2″ stands) for both KEF pairs, placed by the same rules.

How the layout is derived

  1. MLP is fixed. Chair is centered on the west wall; eyes and ears sit ≈10″ off the wall at mid recline. Click the chair on the plan to switch it between reclined (58″ deep) and sitting up (38″ deep with its back 10″ off the wall, ears 10″ farther forward) — the furniture stays put and the listening numbers follow the seat.
  2. TV distance comes from the 30° target. The screen moves out from the east wall until it fills 30° of horizontal view. A 65″ needs ≈42″ of extension; a 77″ ≈23″; an 83″ ≈13″.
  3. Speakers flank the sightline cone. Speakers sit just outside the lines from the MLP to the screen edges, so they never block the picture. With the 65″, fronts are ≈42″ off the east wall (≈30″ rear-port clearance), level with the screen. With the 77″ and 83″, they're pulled back to ≈28″ (≈16″ clearance), with the screen ≈5″ (77″) or ≈15″ (83″) behind them. With the 65″, both pairs are also pulled ≈4″ inward per side (≈8″ closer together: ≈42° LS50, ≈32° Q3), so the inner Q3s tuck a few inches inside the screen edges — fine, since the TV mounts above the speakers.
  4. LS50 Metas outside, Q3 Metas inside (as in Layout B-1/B-2). Pulling the pairs back for the 77″/83″ moves the east-wall cancellation from ≈80 Hz up to ≈120 Hz.
  5. The group sits 6½″ south of center. Chair, speakers, and TV all shift together, as far as the south wall allows: the south LS50's nearest corner ends up ≈4″ from the wall (≈6″ with the 65″), leaving ≈17″ on the north side.

Acoustics

Head near the back wall

With ears ≈8–12″ off the west wall, the reflection from that wall cancels a band around 280–420 Hz (SBIR). EQ can't fix a cancellation — it needs thick broadband absorption (4″+) behind the headrest, covering both drywall and the shut glass door leaf. This also sits on the peak of every lengthwise bass mode.

Side-wall reflections

With the group shifted south, the two sides no longer mirror: first reflections land ≈77–94″ from the west wall with the 65″ and ≈92–114″ with the 77″/83″ — those ranges cover both reclined and upright seating, and the green bands on the plan cover both, so they hold still when you click the chair, closer to the chair on the south side. North is drywall — an easy panel location. South lands on Windows 2 and 3 — panels can cover the windows, so both sides can be treated. The south LS50 sits only ≈4–6″ from the south wall, so that side will also reflect earlier and a little louder.

Front-wall cancellation

The reflection off the east wall behind the speakers cancels a band set by their distance from it: ≈80 Hz with fronts 42″ out (65″ TV, at the sub crossover), ≈120 Hz with the 77″/83″ position at 28″ (above it — needs 4–6″ absorption on the east wall behind each speaker).

Audio rack under the TV

The audio rack sits centered on the east wall directly under the TV, back to the wall. The TV's bottom edge has to clear its 30.3″ top — tilt the screen down toward the MLP. With the rack out of the NE corner, no furniture sits within 12″ of any speaker at any TV size.

Desk on the north wall

The 58″ × 28″ desk sits flush with the NW bookshelf, back to the north wall (37–95″ from the west wall). With the group shifted south, ≈29″ separates its front edge from the recliner, and the side table (on the recliner's north side, flush with the west wall) sits ≈21″ from the desk. A file cabinet sits just east of the desk (95–110″ from the west wall), drawers opening south; the sightline to the north LS50 clears its corner by ≈4½″ with the 77″/83″, while with the 65″ that speaker lands ≈5½″ from it. The north-wall reflection zone falls above the desk (65″) or just east of it (77″/83″), so a panel there still works, and the sightlines to the north speakers pass just clear of the desk.

Room modes

Axial modes: 43 Hz (158″ length), 52 Hz (130″ width), 56 Hz (120″ height). The MLP is on the centerline (a 52 Hz null) and against the back wall (a 43 / 86 / 129 Hz peak). Sub placement plus room correction (miniDSP Flex, Audyssey, or YPAO) handles this.

Output at the MLP

At ≈9.5 ft (≈10.8 ft with the 77″/83″ position, ≈1 dB less), either pair reaches roughly 97–100 dB peaks at rated power before room gain. All four amps have ample headroom; high-passing the mains to the sub at ~80 Hz keeps them clean when pushed.

Existing conditions

Room158″ E–W × 130″ N–S · 120″ ceiling · carpeted · north and east walls solid · no closet
DoorWest wall, double inswing, 2 × 24″ leaves, each with 2 × 5 glass lites. Opening 15¼″–63¼″ from NW corner. North leaf is the active door; south leaf stays shut. A bookshelf (37″ W × 11⅝″ D × 71½″ H) stands against the north wall in the NW corner; the door still opens slightly past 90° before touching it.
WindowsSouth wall, vertical sliders with blinds and shaded transoms. From SW corner: W1 48¾″–71⅜″, W2 78⅞″–101½″, W3 109″–131⅝″. Sills are ¾″ thick, 17½″–18¼″ off the floor, and project 2″ into the room. Glass is 58″ tall (to ≈76¼″), then 7¼″ of wall with a second sill, then 22¾″ transoms (to ≈106¼″) under the 120″ ceiling.
CoolingPortable A/C (Garvee 8000 BTU, 13″ W × 13⅛″ D × 34¼″ H, 50 lb, 59″ hose) vented through W1 (Layouts A and B-1) or W3 (Layout B-2), powered from an outlet outside the room on its own circuit. The A/C duct panel lies landscape across the bottom of that window with the sash resting on it; acoustic panels may cover the windows except that window's bottom ≈5″. Floor vent on south wall kept closed.
NetworkEthernet jack on east wall, ≈24–36″ from NE corner.
LightingCenter ceiling fixture (unused). Task lighting is flexible.

Equipment

ItemWHDNotes
LG C3 65″56.732.51.8Owned · VESA 300×200
LG C3 77″67.438.71.9Candidate
LG C3 83″72.941.62.2Candidate
KEF Q3 Meta8.314.112.087 dB · 4 Ω · rear port
KEF LS50 Meta7.911.911.085 dB · 8 Ω · rear port
RSL Speedwoofer 10E15.015.515.75Layout B-1: east wall, in the 84″ bookshelf’s bottom bay (34–49″ from the north wall), facing west, ≈10¾″ off the wall — the modelled position; its back reaches 1⅛″ into the bookshelf · Layout B-2: east wall between the NE bookshelf and the door desk group, facing west, ≈10¾″ off the wall, front flush with the cabinet fronts (smoothest modeled bass) · Layout A: not yet placed
Desk5829.528Layout A: back to north wall, flush with the NW bookshelf's east side · Layout B-1: east wall, facing west, ≈1⅞″ off the wall (55–113″ from the north wall), flush north of the SE file cabinet · Layout B-2: west wall, facing east, flush north of the SW side table, ≈1⅞″ off the wall so its front lines up with the 30″ bookshelf's east edge
Door (desktop)80—24Layout B-1: laid flat along the west wall on two file cabinets · Layout B-2: on the two east-wall leg cabinets · top ≈30¾″
Audio rack23.630.317.9Layout A: centered under the TV, back to east wall · Layout B-1/B-2: two side by side under the TV, meeting on the room's centerline, 4″ off the north wall for the cables behind them · 4 glass shelves
Wine rack16329.5Layout B-1: in the holding area, kept but not placed · Layout B-2: on the door desk's SE corner, facing west
Bookshelf (84″)23.628411.81HOMISSUE 7-tier · bottom shelf 4⅓″ up, 12½″ tiers, interior 21⅝ × 11⅖″ · Layout B-1: centered in the 27″ bay between the NE bookshelf and the desk, back to the east wall; the sub stands ≈2⅜″ in front of it
Bookshelf (30″)29.87529.87513.625Layout B-1/B-2: in the holding area, kept but not placed
Side table11.52424Layout A: north side of the recliner, flush with the west wall · Layout B-1: matching pair flanking the recliner, backs 10″ off the south wall; the east one holds the IR senders and headphone amp · Layout B-2: one on the recliner's east side against W2's sill (holds the IR senders and headphone amp), one in the SW corner facing east, front flush with the desk · 4 drawers, ≈7″ pull
Side table (10″)102424Layout B-1: both parked in the holding area · Layout B-2: one on the recliner’s west side, back 10″ off the south wall; the second in the holding area
Easy chair29—57–59Depth at mid recline; ≈38 sitting up
Bookshelf (NW corner)37.0171.4611.615 shelves · stays in place
Bookshelf (28″)28—15.75Layout A: temporarily removed · Layout B-1/B-2: NE corner, back to east wall · ≈14.5 deep without top
File cabinet152926.5Layout A: north wall, just east of the desk, drawers open south · Layout B-1: two as door-desk legs on the west wall (drawers east) plus one in the SE corner, drawers west, on the desk’s front plane and 2″ off the south wall so it clears W3’s sill · Layout B-2: two as door-desk legs on the east wall (drawers west) plus one under the door desk flush against the north leg (drawers west); the door desk group sits 2¼″ off the south wall so the SE drawers clear W3's sill
Garvee 8000 BTU A/C13.034.2513.1550.3 lb · 59″ hose
Luxman AS-50R———Remote amp/speaker selector on the audio racks · replaces the AS-55 so no speaker-wire runs go to the chair
Marantz NR1608———The TV receiver, decided Sep 2026 — ARC from the LG, so Atmos arrives as Dolby Digital Plus rather than TrueHD · Audyssey · pre-outs FL/FR feed the HK Signature 1.5, sub out feeds the Douk sub-signal switcher
Apple TV———Stacked on the Eversolo, centred on the west rack's top (stack top ≈34.9″, under the 37½″ Q3 limit) · HDMI 1 on the LG; HDMI 2 is the ARC/eARC return · Bluetooth remote, so no IR emitter
Douk Audio VFD253-PRO6.752.754.19Sub-signal switcher, on the Buckeye (west rack’s upper shelf) · its output feeds the miniDSP Flex

Amps: Hypex NC502MP, Yamaha R-N800A, Harman Kardon Signature 1.5, Classé CA-100. TV receiver: Marantz NR1608 over ARC. Preamps / room correction: miniDSP Flex (planned as a sub-only bass manager), Marantz NR1608 (also the 2.1 preamp to the HK Signature 1.5), R-N800A (YPAO), SMSL C200 Pro (candidate preamp for the CA-100). Sources: Apple TV, Eversolo DMP-A6 (feeds the headphone amp at the chair).

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