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References
Front view — side by side at true scale
ATriangle BR09BQuad S-4
Click either cabinet to swap A ↔ B · Reference height: 43.1 in · 1 in = 12.99 px
| A | B | |
|---|---|---|
| Manufacturer | Triangle | Quad |
| Model | Triangle BR09 | Quad S-4 |
| Height | 43.1 in | 34.3 in |
| Width | 10 in | 7.1 in |
| Depth | 12.4 in | 11.8 in |
| Weight | 51.6 lb | 45.2 lb |
| Enclosure | bass-reflex-front | passive-radiator |
| Drivers | 1× 1 in tweeter (silk-dome), 1× 6.3 in midrange (natural cellulose-pulp cone), 3× 6.3 in woofer (fiberglass cone) | 1× tweeter (ribbon), 1× 3.9 in midrange (woven Kevlar cone), 2× 4.9 in woofer (woven Kevlar cone) |
| Frequency — low | 35 Hz | 44 Hz |
| Frequency — high | 22000 Hz | 23000 Hz |
| Sensitivity | 92 dB | 88 dB |
| Impedance | 8 Ω | 6 Ω |
| Recommended amp | 60–300 W | 40–200 W |
| MAP (USD) | $1,449 / pair | $1,499 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | trianglehifi.com ↗ | quad-hifi.co.uk ↗ |
| 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.