The Polk Audio Reserve R900 is a premium height module speaker designed to add immersive overhead sound to a Polk Reserve home cinema system. Each speaker combines a 4-inch Turbine Cone woofer with a 0.75-inch Pinnacle Ring Radiator tweeter. The R900 can be placed on top of compatible Reserve speakers or wall-mounted, providing flexible integration for Dolby Atmos® and DTS:X® systems.
| Product Type | Passive Height Module Speaker |
|---|---|
| Series | Polk Audio Reserve |
| Woofer | 1 × 4" Turbine Cone per Speaker |
| Tweeter | 1 × 0.75" Pinnacle Ring Radiator per Speaker |
| Overall Frequency Response | 50Hz – 50kHz (Wall-Mounted) |
| Frequency Response (-3dB) | 70Hz – 32kHz (Wall-Mounted) |
| Sensitivity | 85.5dB (2.83V / 1m, Wall-Mounted) |
| Minimum Impedance | 4.2Ω |
| Amplifier Output Compatibility | 4Ω / 6Ω / 8Ω |
| Recommended Amplifier Power | 45 – 100W per Channel |
| Crossover Frequency | 2.1kHz |
| Enclosure Type | Sealed |
| Speaker Connections | Single Nickel-Plated 5-Way Binding Posts |
| Wall Mountable | Yes – Integrated Keyhole Slots |
| Placement | Top-Mounted or Wall-Mounted |
| Hi-Res Audio Certified | Yes |
| Available Finishes | Black / Walnut / White |
| Dimensions (W × H × D) | 166 × 158.3 × 320mm per Speaker |
| Weight | 3kg per Speaker |
| Quantity | Pair (2 Speakers) |
The Reserve R900 can be placed on top of compatible Polk Reserve R700, R600, R500 or R200 speakers, or wall-mounted as a dedicated height channel. A rear-panel switch allows the speaker to optimise its response for the selected installation method, making it a flexible solution for expanding a Reserve Series system with immersive three-dimensional audio.