Short answer: the Focal Aria 906 for easier amplification, the Polk Reserve R100 for bass from a compact cabinet. The R100 has unusually useful bass for its size and well-controlled woofer breakup, but Erin measured only about 85dB sensitivity and impedance reaching 3.6 ohms, so it is neither efficient nor an entirely benign AVR load. The Aria 906 shows very flat bass and an almost perfect predicted in-room response prior to 1kHz.
Buy the Polk Reserve R100. It is rated higher for sound quality and still sold new, while the Focal Aria 906 is discontinued.
Still deciding? The full Passive Home rankings cover every ranked option.
Specifications Side By Side
| Focal Aria 906 | Polk Reserve R100 | |
|---|---|---|
| Price | $2,199.00 per pair used, Discontinued | $699.00 per pair |
| Ranked | #97 of 134 in Large Size Bookshelf Speakers | #96 of 134 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 47Hz (measured, Erin’s Audio Corner) | 49Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 63Hz (measured, Erin’s Audio Corner) | 68Hz (measured, Erin’s Audio Corner) |
| Impedance | 4 ohms nominal (4.8 ohms minimum above 80Hz, measured by Erin’s Audio Corner) | 3.6 ohms minimum (measured, Erin’s Audio Corner) |
| Sensitivity | 86.5dB (measured average, Erin’s Audio Corner) | 85dB/2.83V/1m (measured, Erin’s Audio Corner) |
| Drivers | 26mm tweeter + 165mm mid-woofer | 1” Pinnacle ring-radiator tweeter; 5.25” Turbine Cone midwoofer |
| Weight | 39.9 lbs (18.1 kg) | 12.1 lbs (5.5 kg) each |
| Dimensions | 15.4”H x 8.9”W x 11”D (390.0 x 225.0 x 280.0 mm) | 12.8”H x 6.5”W x 10.2”D |
| Woofer Cabinet | ported, front | ported, rear X-Port |
| Spinorama Preference Score | 4.64 | 5.46 |
| Spinorama Preference Score with Perfect Sub | 7.00 | 7.93 |
| DIY Kit | No | No |
Related Speaker Comparisons
More top alternatives to Polk Reserve R100:
- AsciLab C6B vs Polk Reserve R100
- KEF R3 Meta vs Polk Reserve R100
- KEF Q Concerto Meta vs Polk Reserve R100
- KEF R3 vs Polk Reserve R100
- MoFi SourcePoint 8 vs Polk Reserve R100
Prices on this page were last checked October 2, 2026 at 10:18 PM 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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
Focal Aria 906: $2,199.00 per pair used Discontinued Amazon eBay
Newer model: the Focal Aria Evo X N°1. It’s likely to perform similarly, though we don’t have measurements to confirm that yet.
Pros: CEA2034 spinorama shows very flat bass response, with the reviewer rating overall performance “good.” Predicted in-room response is almost perfect prior to 1kHz. Horizontal dispersion of about ±60 degrees is good and stays even out to about -12dB before getting erratic. Woofer distortion is quite low at 86dB SPL/1m. Measured bass extension of 63Hz (-3dB), with a measured sensitivity of 86.5dB.
Cons: 3dB dip around 2.8kHz. Some resonance around 800Hz, small directivity error around 7kHz. A dip in the upper midrange also shows up in the predicted in-room response. Distortion becomes problematic at 96dB SPL/1m, with a notable peak around 1.3-1.5kHz alongside broader midrange elevation. Discontinued.
Full Focal Aria 906 review and specifications →
| Bass Extension (-10dB) | 47Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 63Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 15.4”H x 8.9”W x 11”D (390.0 x 225.0 x 280.0 mm) |
| Drivers | 26mm tweeter + 165mm mid-woofer |
| Impedance | 4 ohms nominal (4.8 ohms minimum above 80Hz, measured by Erin’s Audio Corner) |
| Sensitivity | 86.5dB (measured average, Erin’s Audio Corner) |
| Spinorama Preference Score | 4.64 |
| Spinorama Preference Score with Perfect Sub | 7.00 |
| Weight | 39.9 lbs (18.1 kg) |
| Woofer Cabinet | ported, front |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Polk Reserve R100: $699.00 per pair Amazon Polk Audio eBay
Pros: 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.
Full Polk Reserve R100 review and specifications →
| Bass Extension (-10dB) | 49Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 68Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 12.8”H x 6.5”W x 10.2”D |
| Drivers | 1” Pinnacle ring-radiator tweeter; 5.25” Turbine Cone midwoofer |
| Impedance | 3.6 ohms minimum (measured, Erin’s Audio Corner) |
| Sensitivity | 85dB/2.83V/1m (measured, Erin’s Audio Corner) |
| Spinorama Preference Score | 5.46 |
| Spinorama Preference Score with Perfect Sub | 7.93 |
| Weight | 12.1 lbs (5.5 kg) each |
| Woofer Cabinet | ported, rear X-Port |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Polk Reserve R100 vs Revel Performa M22
- Polk Reserve R100 vs Sonus Faber Lumina II
- Polk Reserve R100 vs Polk Monitor XT20
- Polk Reserve R100 vs HSU Research MFL-6
- Polk Reserve R100 vs KEF Q3 Meta
- Polk Reserve R100 vs Polk R200
- Polk Reserve R100 vs SVS Prime Bookshelf
- Polk Reserve R100 vs ELAC Debut 2.0 B6.2
- See all 30 comparisons