TrueSpecs
Compare technical specifications (up to 4 speakers).
HiFi Ladder
Browse every speaker side by side, ordered by size or by price.
HiFi Search
Find speakers by the specs you want.
Compare speakers at true scale
Pick two speakers and see them side by side at their real-world size.
References
Front view — overlaid at true scale
ABang & Olufsen Beolab 18BQ Acoustics M40 HD
Click either cabinet to swap A ↔ B · Reference height: 1324 mm (132.4 cm) · 1 mm = 0.42 px
| A | B | |
|---|---|---|
| Manufacturer | Bang & Olufsen | Q Acoustics |
| Model | Bang & Olufsen Beolab 18 | Q Acoustics M40 HD |
| Height | 1324 mm | 710 mm |
| Width | 200 mm | 239 mm |
| Depth | 200 mm | 296 mm |
| Weight | 9.2 kg | 12.4 kg |
| Enclosure | sealed | bass-reflex-rear |
| Drivers | 1× 19 mm tweeter (soft-dome), 2× 102 mm woofer (long-stroke paper cone) | 1× 22 mm tweeter (soft dome), 2× 125 mm mid-bass (coated paper cone) |
| Frequency — low | 39 Hz | 38 Hz |
| Frequency — high | 23500 Hz | 22000 Hz |
| Sensitivity | — | — |
| Impedance | — | — |
| Recommended amp | — | — |
| MAP (USD) | — | $1,699 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | bang-olufsen.com ↗ | qacoustics.com ↗ |
| Product page | Open product page ↗ | Open product page ↗ |
Larger value highlighted in green. For low-frequency extension, lower Hz = greater bass reach, so the deeper side is highlighted.