Home office redesign · working draft · updated Sep 13, 2026
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.
All dimensions in inches. Speakers are shown toed in toward the MLP as a starting point. Computed positions are marked ≈; measured ones are exact.
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.
With the group shifted south, the two sides no longer mirror: first reflections land ≈80–96″ from the west wall with the 65″ and ≈92–113″ with the 77″/83″, 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.
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).
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.
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.
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.
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.
| Room | 158″ E–W × 130″ N–S · 120″ ceiling · carpeted · north and east walls solid · no closet |
|---|---|
| Door | West 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. |
| Windows | South 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. |
| Cooling | Portable A/C (Garvee 8000 BTU, 13″ W × 13⅛″ D × 34¼″ H, 50 lb, 59″ hose) vented through W1 (Layout A) or W3 (Layout B-1/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. |
| Network | Ethernet jack on east wall, ≈24–36″ from NE corner. |
| Lighting | Center ceiling fixture (unused). Task lighting is flexible. |
| Item | W | H | D | Notes |
|---|---|---|---|---|
| LG C3 65″ | 56.7 | 32.5 | 1.8 | Owned · VESA 300×200 |
| LG C3 77″ | 67.4 | 38.7 | 1.9 | Candidate |
| LG C3 83″ | 72.9 | 41.6 | 2.2 | Candidate |
| KEF Q3 Meta | 8.3 | 14.1 | 12.0 | 87 dB · 4 Ω · rear port |
| KEF LS50 Meta | 7.9 | 11.9 | 11.0 | 85 dB · 8 Ω · rear port |
| RSL Speedwoofer 10E | 15.0 | 15.5 | 15.75 | Layout B-1: west wall under the door desk, facing east, flush against the north leg cabinet · Layout B-2: east wall between the NE bookshelf and the door desk group, facing west (smoothest modeled bass) · both ≈10¾″ off the wall, front flush with the cabinet fronts · Layout A: not yet placed |
| Desk | 58 | 29.5 | 28 | Layout A: back to north wall, flush with the NW bookshelf's east side · Layout B-1: centered on the east wall, facing west · 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 | — | 24 | Layout 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 rack | 23.6 | 30.3 | 17.9 | Layout 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, backs to north wall · 4 glass shelves |
| Wine rack | 16 | 32 | 9.5 | Layout B-1: on the door desk's SW corner, facing east · Layout B-2: on the door desk's SE corner, facing west |
| Bookshelf (30″) | 29.875 | 29.875 | 13.625 | Layout B-1: directly south of the desk, back to the east wall, facing west · Layout B-2: against the SW desk's north end, facing north |
| Side table | 11.5 | 24 | 24 | Layout A: north side of the recliner, flush with the west wall · Layout B-1: matching tables on both sides of the recliner, slid south against the sills · 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″) | 10 | 24 | 24 | Layout B-2: two side by side on the recliner's west side, slid south against W1's sill |
| Easy chair | 29 | — | 57–59 | Depth at mid recline |
| Bookshelf (NW corner) | 37.01 | 71.46 | 11.61 | 5 shelves · stays in place |
| Bookshelf (28″) | 28 | — | 15.75 | Layout A: temporarily removed · Layout B-1/B-2: NE corner, back to east wall · ≈14.5 deep without top |
| File cabinet | 15 | 29 | 26.5 | Layout A: north wall, just east of the desk, drawers open south · Layout B-1: two as door-desk legs on the west wall plus one stacked over the W (north) leg (drawers east) · 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/C | 13.0 | 34.25 | 13.15 | 50.3 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 |
| Denon AVR-S970H | — | — | — | AV receiver for TV on the audio racks · eARC from the LG · 90 W/ch into 8 Ω, with a 4 Ω speaker setting · no main-channel pre-outs, so it powers the speakers through the AS-50R · subwoofer pre-outs feed the Topaz AM10 |
| Apple TV | — | — | — | HDMI into the LG |
| Cambridge Topaz AM10 | — | — | — | Sub-signal switcher on the audio racks · record out (fixed level) feeds the miniDSP Flex |
Amps: Hypex NC502MP, Yamaha R-N800A, Harman Kardon Signature 1.5, Classé CA-100. TV receiver: Denon AVR-S970H. Preamps / room correction: miniDSP Flex (planned as a sub-only bass manager), Marantz NR1608 (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).