Completed builds
Finished loudspeakers people actually built — the real driver lineup, the box that got cut, the crossover that ended up in it, and a short note on why. Every build here opens its own shareable build page with a live compatibility check and an estimated parts list. This is the seed of a community inspiration gallery; for design recipes you can adopt and tweak, see the recipe library.
Built something? Share your build.
Community submissions aren't open yet — they go live once the moderation pipeline is in place. See what's coming.
- Bookshelf≈ $360
"Reference Compact" — sealed RS225 + ND25FA bookshelf
Built by Sine Design team
Dayton Audio RS225-4 + Dayton Audio ND25FA-4
“I wanted one really honest small two-way for the desk-adjacent shelf, so I built the 8" Dayton RS225-4 aluminium-cone woofer sealed in 20 L — that…”
- Box
- Sealed · 20 L
- Crossover
- LR4 · 2.5 kHz · 2-way
- Amp
- Generic Stereo Integrated 2×100
- Driver
- 8″ main
- Tower / floorstanding≈ $760
"Slim Towers" — twin Scan-Speak 18W + Seas 27TBFC floorstander
Built by Sine Design team
2× Scan-Speak 18W/8531G00 + Seas 27TBFC/G H1212-06
“A pair of narrow floorstanders for the main listening room. Two Scan-Speak 18W/8531G00 Revelator midwoofers per side in a 60 L vented column tuned to…”
- Box
- Ported · 60 L @ 30 Hz
- Crossover
- LR4 · 2.2 kHz · 2-way
- Amp
- Generic Stereo Integrated 2×100
- Driver
- 7″ main
- Subwoofer≈ $260
"Tight Ten" — sealed 10" Peerless SLS subwoofer
Built by Sine Design team
Peerless by Tymphany SLS-P830668
“A compact sealed 10" sub for music more than movies — I wanted speed and definition over the last octave of slam. The Peerless SLS-P830668 (Qts…”
- Box
- Sealed · 70 L
- Crossover
- Crossover-less (full-range / sub)
- Driver
- 10″ main
- Full-range / other≈ $130
"Deskmate" — ported Tang Band W5 single-driver mini
Built by Sine Design team
Tang Band W5-1611SAF
“A crossover-less single-driver pair for the bedroom system, built around the 5" Tang Band W5-1611SAF full-range. I went a little bigger and lower…”
- Box
- Ported · 14 L @ 48 Hz
- Crossover
- Crossover-less (full-range / sub)
- Driver
- 5″ main
These curated builds are seed content for the gallery. Driver Thiele/Small parameters are manufacturer-published (nominal); real cabinets, baffle layout and damping all shift the result — always model the final box and measure before you build. Sine Design earns a commission on parts purchased through the buy links on each build page.