Polk Reserve R100

Bookshelf speaker · Reserve series

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The Polk Reserve R100 is an 8 Ω bookshelf speaker rated 86 dB (2.83 V, 1 m), with a recommended 30–150 W amplifier. Of the 29 receivers and amps in our catalogue, 29 are rated to drive it.

$699 a pair (MSRP, September 2026)

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Receivers and amplifiers for the Reserve R100

Each pairing is checked by our compatibility engine: the speaker's impedance against the amplifier's rated minimum, and height decoding for height speakers. Whether it plays loud enough depends on how far you sit, which the 3D editor works out for your room.

Rated to drive it (29)

Reserve R100 specifications

Impedance8 Ω
Sensitivity86 dB (2.83 V, 1 m)
Low end58 Hz
Drivers1 × 25 mm, 1 × 133 mm
Size6×13×10 in
Recommended amplifier power30–150 W
Weight5.5 kg (12.1 lb)
MSRP$699 a pair (MSRP, September 2026)

Every value comes from the sources under References, last retrieved September 15, 2026. To check it against the rest of your system, use the compatibility checker.

Questions about the Reserve R100

What receiver do I need for the Reserve R100?
One rated for 8 Ω speakers. In our catalogue, Denon AVR-S570BT, Emotiva BasX A-700 and Yamaha RX500A are rated to drive it.
Is the Reserve R100 4 ohm or 8 ohm?
The Polk Reserve R100 has a nominal impedance of 8 Ω. Use a receiver or amplifier rated down to 8 Ω or lower.
How much power does the Reserve R100 need?
Polk recommends an amplifier of 30–150 W. Its sensitivity is 86 dB (2.83 V, 1 m). How much of that you use depends on how far you sit and how loud you listen, which the 3D editor works out for your room.
How low does the Reserve R100 go?
The Polk Reserve R100 is rated down to 58 Hz. Below that, a subwoofer takes over; where the bass actually lands depends on your room's modes.
How big is the Reserve R100?
The Polk Reserve R100 measures 165 × 325 × 259 mm (6.5 × 12.8 × 10.2 in, width × height × depth) and weighs 5.5 kg (12.1 lb).

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References

  1. Polk Reserve R100: Owner's manual, polkaudio.com, retrieved September 15, 2026
  2. Polk Reserve R100: Manufacturer product page, polkaudio.com, retrieved September 15, 2026

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