Short answer: it depends on whether you can drive a 3.6-ohm load. The Polk Reserve R100 has a compact cabinet with unusually useful bass and well-controlled woofer breakup, but Erin measured only about 85dB sensitivity and impedance reaching 3.6 ohms, so it is neither efficient nor benign for an AVR. The B6.2 is flat on-axis with even directivity but carries a resonant peak around 700Hz.
Buy the ELAC Debut 2.0 B6.2. It is rated higher for sound quality than the Polk Reserve R100 and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
Still deciding? The full Passive Home rankings cover every ranked option.
Specifications Side By Side
| ELAC Debut 2.0 B6.2 | Polk Reserve R100 | |
|---|---|---|
| Price | $479.00 per pair | $699.00 per pair |
| Ranked | #89 of 134 in Large Size Bookshelf Speakers | #96 of 134 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 40Hz (measured, Erin’s Audio Corner) | 49Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 64Hz (measured, Erin’s Audio Corner) | 68Hz (measured, Erin’s Audio Corner) |
| Impedance | 6 ohms nominal, 5.2 ohms minimum (measured, Erin’s Audio Corner) | 3.6 ohms minimum (measured, Erin’s Audio Corner) |
| Sensitivity | 86.5dB (measured, Audio Science Review) | 85dB/2.83V/1m (measured, Erin’s Audio Corner) |
| Drivers | 25mm tweeter + 165mm woofer | 1” Pinnacle ring-radiator tweeter; 5.25” Turbine Cone midwoofer |
| Weight | 29.1 lbs (13.2 kg) | 12.1 lbs (5.5 kg) each |
| Dimensions | 14.8”H x 7.7”W x 10.6”D (375.0 x 195.0 x 268.0 mm) | 12.8”H x 6.5”W x 10.2”D |
| Woofer Cabinet | ported, front | ported, rear X-Port |
| Spinorama Preference Score | 4.75 (spinorama.org) | 5.46 |
| Spinorama Preference Score with Perfect Sub | 7.0 (spinorama.org) | 7.93 |
| DIY Kit | No | No |
Related Speaker Comparisons
More worthwhile head-to-heads for ELAC Debut 2.0 B6.2:
- ELAC Debut 2.0 B6.2 vs Perlisten S4b
- ELAC Debut 2.0 B6.2 vs KEF Reference 1 Meta
- ELAC Debut 2.0 B6.2 vs GR-Research NX-Studio
- AsciLab C6B vs ELAC Debut 2.0 B6.2
- ELAC Debut 2.0 B6.2 vs Audio First Cadentia 3
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
ELAC Debut 2.0 B6.2: $479.00 per pair Amazon Crutchfield eBay
Pros: Reasonably flat on-axis and listening-window response with reasonably even horizontal directivity, holding about ±60° up to roughly 8kHz for consistent stereo width whether aimed directly at the listener or toed out. Its larger-than-typical woofer lets it play very loud with minimal distortion, staying under about 1% THD down to 50Hz at 86dB, and minimum impedance stays a comfortable 5-6 ohms. In-room bass extension reaches about 50Hz without much trouble, enough for a solid kick-drum sound. Takes equalization very well: correcting the on-axis response doesn’t cost sensitivity through the midrange, and the underlying directivity behavior (diffraction, vertical mismatch) is mild enough that EQ alone gets most of the way to a well-balanced sound. Vertical tolerance is asymmetric and fairly forgiving: about 10° above the tweeter axis and 20° below it before tonal balance meaningfully shifts. One reviewer called it “a good speaker” with “a good price” rather than just good-for-the-price, and found it fairly neutral overall in-room. Measured bass extension of 64Hz (-3dB), with a measured sensitivity of 86.5dB.
Cons: A good size resonant peak around 700Hz stands out from an otherwise smooth response and lingers in cumulative spectral decay (waterfall) measurements: in one reviewer’s sighted A/B test, reducing it by about 5dB via EQ made a noticeable but not dramatic difference. Directivity error shows up around 3.3kHz, and the upper-midrange around 4-6kHz stood out as edgy and sharp, almost sibilant at times, in casual listening: the predicted in-room response shows a lack of energy between 1-2kHz and a bit too much above that, which one reviewer thought would sound bright. Distortion at 96dB SPL/1m shows two harmonic peaks the reviewer says “should not be there,” one from woofer breakup around 400Hz and another around 7-8kHz from the tweeter, and multitone distortion approaches 10% in the 500-800Hz range at that output level. Real compression shows up even at moderate volume and worsens at 96dB and above, with the woofer clearly giving up around 60-70Hz: a subwoofer is recommended for anyone wanting to listen loud, since running it full-range at high output costs real dynamic range in the midbass and bass. Don’t place it close to a wall: boundary reinforcement adds a midbass bump that undoes the otherwise smooth, linear response. Getting the best out of it takes EQ (taming the 700Hz peak, filling in the 1-2kHz dip, and trimming the highs).
Full ELAC Debut 2.0 B6.2 review and specifications →
| Bass Extension (-10dB) | 40Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 64Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 14.8”H x 7.7”W x 10.6”D (375.0 x 195.0 x 268.0 mm) |
| Drivers | 25mm tweeter + 165mm woofer |
| Impedance | 6 ohms nominal, 5.2 ohms minimum (measured, Erin’s Audio Corner) |
| Sensitivity | 86.5dB (measured, Audio Science Review) |
| Spinorama Preference Score | 4.75 (spinorama.org) |
| Spinorama Preference Score with Perfect Sub | 7.0 (spinorama.org) |
| Weight | 29.1 lbs (13.2 kg) |
| Woofer Cabinet | ported, front |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- ELAC Debut 2.0 B6.2 vs SVS Prime Bookshelf
- ELAC Debut 2.0 B6.2 vs Dynaudio Special Forty
- ELAC Debut 2.0 B6.2 vs Infinity IL10
- ELAC Debut 2.0 B6.2 vs GR-Research X-LS Encore
- ELAC Debut 2.0 B6.2 vs KEF Q3 Meta
- ELAC Debut 2.0 B6.2 vs Polk Monitor XT20
- ELAC Debut 2.0 B6.2 vs Parts Express Samba MT
- ELAC Debut 2.0 B6.2 vs Sonus Faber Lumina II
- See all 63 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 Focal Aria 906
- 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
- See all 30 comparisons