The R900 height module is a Reserve-series height/topper with Pinnacle tweeter and 4″ Turbine Cone driver. Wall-mountable or sit-on-top of compatible Reserve speakers to add immersive height channels.
| Driver Complement | 0.75"-1.0" Pinnacle Ring Radiator tweeter; 4" Turbine Cone mid/bass driver |
|---|---|
| Overall Frequency Response | 50 Hz – 50 kHz (manufacturer listing) |
| Frequency Response (-3dB) | 70 Hz – 32 kHz (wall mounted) |
| NOMINAL IMPEDANCE | ~4.2 Ω (manufacturer listing) |
| Sensitivity | ~85.5 dB (wall mounted) |
| RECOMMENDED AMPLIFIER POWER | 45 – 100 W |
| Crossover Notes | See Polk spec sheet for mounting-dependent response |
| Driver Enclosure Type | Sealed / topper / wall-mountable |
| Height | 6.2 in (158.3 mm) |
| Width | 6.5 in (166 mm) |
| Depth | 12.6 in (320 mm) |
| Weight | ~3 kg (each) |
| Available Colours | Black, Walnut, White |
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