TrueScaleAudio
Compare speakers at true scale
Pick two speakers and see them side by side at their real-world size.
Front view — side by side at true scale
Click either cabinet to swap A ↔ B · Reference height: 45.0 in · 1 in = 12.43 px
Polk Reserve R700vsTriangle BR09
The Polk Reserve R700 stands 114.4 cm tall — about 4.9 cm more than the Triangle BR09 at 109.5 cm. On footprint the Polk Reserve R700 is the wider cabinet (32.8 cm versus 25.4 cm). At 92 dB against 88 dB, the Triangle BR09 is the easier load to drive and plays louder from the same amplifier. The Triangle BR09 reaches deeper in the bass, down to 35 Hz versus 38 Hz. Low frequencies come from a 203 mm cone on the Polk Reserve R700 and a 160 mm cone on the Triangle BR09. Both land in a similar price bracket, around $1,474 a pair.
| A | B | |
|---|---|---|
| Manufacturer | Polk | Triangle |
| Model | Reserve R700 | BR09 |
| HiFi ladder position | #170 of 281 floorstander | #126 of 281 floorstander |
| Height | 45 in | 43.1 in |
| Width | 12.9 in | 10 in |
| Depth | 16.9 in | 12.4 in |
| Weight | 79.1 lb | 51.6 lb |
| Enclosure | bass-reflex-down | bass-reflex-front |
| Drivers | 1× 1 in tweeter (Pinnacle ring radiator), 1× 6.5 in midrange (Turbine cone), 2× 8 in woofer (polypropylene cone) | 1× 1 in tweeter (silk-dome), 1× 6.3 in midrange (natural cellulose-pulp cone), 3× 6.3 in woofer (fiberglass cone) |
| Frequency — low | 38 Hz | 35 Hz |
| Frequency — high | 38000 Hz | 22000 Hz |
| Sensitivity | 88 dB | 92 dB |
| Impedance | 4 Ω | 8 Ω |
| Recommended amp | 50–300 W | 60–300 W |
| MAP (USD) | $1,499 each | $1,449 / pair |
| Where to buy | Check availability ↗ | Check availability ↗ |
| Brand website | polkaudio.com ↗ | trianglehifi.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.