Polk Audio Reserve R100 – Bookshelf Speakers (Pair)
The Polk Audio Reserve R100 is a compact high-performance bookshelf speaker designed for stereo music and home cinema systems. Each speaker combines Polk's 1-inch Pinnacle Ring Radiator tweeter with a 5.25-inch Turbine Cone mid/bass driver and X-Port technology, delivering detailed high frequencies, clear midrange and controlled bass from a compact enclosure.
Key Features
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1" Pinnacle Ring Radiator Tweeter: Provides detailed high-frequency reproduction with wide dispersion for precise imaging and an open soundstage.
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5.25" Turbine Cone Driver: Polk's Turbine Cone design increases rigidity without adding excessive mass, helping deliver natural midrange and controlled bass.
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X-Port Technology: Polk's Eigentone Filter technology helps reduce unwanted port and cabinet resonances for cleaner low-frequency reproduction.
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2-Way Design: Dedicated tweeter and mid/bass driver provide balanced reproduction across a wide frequency range.
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Hi-Res Audio Certified: Extended high-frequency performance supports detailed playback of high-resolution audio sources.
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Premium Cabinet Construction: Carefully braced enclosure helps minimise unwanted vibration and cabinet colouration.
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Compact Design: Provides Reserve Series performance in a smaller enclosure suitable for shelves, stands and space-conscious systems.
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Flexible System Use: Suitable as main stereo speakers or as front, surround or rear channels in a Reserve Series home cinema system.
Technical Specifications
| Product Type |
Passive Bookshelf / Standmount Speaker |
| Series |
Polk Audio Reserve |
| Design |
2-Way Bookshelf Speaker |
| Tweeter |
1 × 1" (25.4mm) Pinnacle Ring Radiator |
| Mid / Bass Driver |
1 × 5.25" (133.4mm) Turbine Cone |
| Total Frequency Response |
44Hz – 50kHz |
| Frequency Response (-3dB) |
58Hz – 39kHz |
| Sensitivity |
86dB (2.83V / 1m) |
| Nominal Impedance |
4Ω |
| Minimum Impedance |
3.6Ω |
| Recommended Amplifier Power |
30 – 150W per Channel |
| Crossover Frequency |
2.7kHz |
| Bass Technology |
X-Port with Eigentone Filter |
| Speaker Connections |
5-Way Binding Posts |
| Hi-Res Audio Certified |
Yes |
| Dimensions (W × H × D) |
166 × 324 × 260mm per Speaker |
| Weight |
5.5kg per Speaker |
| Quantity |
Pair (2 Speakers) |
System Integration
The Reserve R100 can serve as the main left and right speakers in a compact Hi-Fi system or as front, surround or rear speakers in a Polk Reserve home cinema setup. Its compact dimensions make it suitable for stand or shelf placement, while its 4Ω nominal impedance and 30–150W recommended amplifier range should be matched with a compatible stereo amplifier or AV receiver.