Polk Reserve R100 Review: Rated 3.4/5

Last updated: October 30, 2026

The Polk Reserve R100 is rated 3.4/5 for sound quality, #160 of 222 Large Size Bookshelf Speakers. See all Passive Home rankings for every top pick.

Prices on this page were last checked November 11, 2026 at 3:26 AM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.

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Brand: Polk

#160 Polk Reserve R100: $699.00 per pair Amazon $699.00 eBay

Same family: the Polk R200 (larger bookshelf, ranked lower, rated 3.2/5), the Polk Reserve R500 (smallest floorstanding, rated 4.2/5), the Polk Reserve R600 (floorstanding, estimated 4.2/5), the Polk Audio Reserve R700 (largest floorstanding, rated 4.3/5), the Polk Audio Reserve R300 (smallest center, estimated 3.6/5), the Polk Audio Reserve R350 (center, rated 3.7/5) and the Polk Audio Reserve R400 (largest center, estimated 3.8/5).

Pros: Compact bookshelf speakers with unusually useful bass for their size and a vent that avoids port noise. Compact cabinet, unusually useful bass for its size and well-controlled woofer breakup. Erin measured F3/F10 points of 68Hz/49Hz, and the X-Port vent avoids much of the chuffing and pipe resonance common to budget rear ports. The 5.25-inch Turbine Cone woofer and 1-inch Pinnacle ring-radiator tweeter produce good detail at moderate levels, while listening roughly 20° off-axis reduces part of the elevated top octave. Measured bass extension of 68Hz (-3dB), with a measured sensitivity of 85dB.

Cons: Erin measured only about 85dB sensitivity and the impedance reaches 3.6 ohms, so it is neither efficient nor an entirely benign AVR load. The treble runs roughly 3dB above the midrange and becomes aggressive above about 85dB SPL. A directivity discontinuity through the woofer/tweeter crossover means EQ cannot fully repair the power response, and a 400Hz impedance feature plus 500Hz-1kHz response irregularity suggests a cabinet or system resonance. Substantial low-frequency compression at higher playback levels limits clean dynamics.

Is the Polk Reserve R100 right for you?

Buy it if

  • you want measurably neutral sound (preference score 7.9 with a subwoofer).

Skip it if

Released2021 (5 years ago)
Bass Extension (-10dB)49Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)68Hz (measured, Erin’s Audio Corner)
DIY KitNo
Dimensions12.8”H x 6.5”W x 10.2”D
Drivers1” Pinnacle ring-radiator tweeter; 5.25” Turbine Cone midwoofer
Impedance3.6 ohms minimum (measured, Erin’s Audio Corner)
Sensitivity85dB/2.83V/1m (measured, Erin’s Audio Corner)
Spinorama Preference Score5.46
Spinorama Preference Score with Perfect Sub7.93
Weight12.1 lbs (5.5 kg) each
Woofer Cabinetported, rear X-Port

Price history (per pair)

$559$699Aug 14, 2026 to Sep 26, 2026: $649Sep 26, 2026 to Oct 5, 2026: $699Oct 5, 2026 to Oct 19, 2026: $559Oct 19, 2026 to Nov 5, 2026: $699Aug 2026Nov 2026

$699 is 8 percent above its typical $649 over the last three months, and it has been as low as $559 (Oct 2026). It may be worth waiting for a sale.

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