Short answer: the HiVi Swans 3.1A Sehlin Sound Solutions mod, a DIY three-way kit with a mostly smooth on-axis response. Its one noted fault is some directivity error around 2.1kHz on-axis. The ELAC Debut 2.0 B6.2 is a finished speaker with reasonably flat on-axis and listening-window response, but it shows a good size resonant peak around 700Hz and a directivity error around 3.3kHz.
What the ELAC Debut 2.0 B6.2 gets right: Reasonably flat on-axis and listening-window response with reasonably even horizontal directivity. The catch: A good size resonant peak around 700Hz, directivity error around 3.3kHz.
On the HiVi Swans 3.1A Sehlin Sound Solutions mod side: CEA2034 spinorama shows a mostly smooth on-axis response for a DIY three-way kit. The catch: Some directivity error appears around 2.1kHz on-axis.
Buy the HiVi Swans 3.1A Sehlin Sound Solutions mod. It is rated higher for sound quality, and the $35.99 you would save on the ELAC Debut 2.0 B6.2 does not close the gap.
Looking for alternatives? See the complete Passive Home rankings.
Specifications Side By Side
| ELAC Debut 2.0 B6.2 | HiVi Swans 3.1A Sehlin Sound Solutions mod | |
|---|---|---|
| Price | $329.00 per pair | $364.99 per pair for the kit (assembly required) |
| Ranked | #87 of 130 in Large Size Bookshelf Speakers | #61 of 130 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 40Hz (measured, Erin's Audio Corner) | 38Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 64Hz (measured, Erin's Audio Corner) | 60Hz (measured, Audio Science Review) |
| Impedance | 6 ohms nominal, 5.2 ohms minimum (measured, Erin's Audio Corner) | 4 ohms nominal, 3.8 ohms minimum (measured, Audio Science Review) |
| Sensitivity | 86.5dB (measured, Audio Science Review) | 86.5dB (measured, Audio Science Review) |
| Drivers | 25mm tweeter + 165mm woofer | 6.5" Kevlar woofer, 2" Dome midrange, 1" Soft Dome tweeter |
| Weight | 29.1 lbs (13.2 kg) | 13.7 lbs (6.2 kg) |
| Dimensions | 14.8"H x 7.7"W x 10.6"D (375.0 x 195.0 x 268.0 mm) | 16.5"H x 8.5"W x 13"D (420.0 x 215.0 x 330.0 mm) |
| Woofer Cabinet | ported, front | ported, rear |
| Spinorama Preference Score | 4.75 (spinorama.org) | 5.8 (derived from ASR thread measurement data) |
| Spinorama Preference Score with Perfect Sub | 7.0 (spinorama.org) | 7.6 (derived from ASR thread measurement data) |
| DIY Kit | No | Yes |
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The Two Speakers In Full
ELAC Debut 2.0 B6.2: $329.00 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
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HiVi Swans 3.1A Sehlin Sound Solutions mod: $364.99 per pair for the kit (assembly required) Amazon eBay
Pros: CEA2034 spinorama shows a mostly smooth on-axis response for a DIY three-way kit. Horizontal beamwidth of about ±70 degrees is wide and consistent. Distortion stays under control down to 40Hz at 96dB SPL/1m, a strong result for a 6.5” woofer in this class. Measured bass extension of 60Hz (-3dB), with a measured sensitivity of 86.5dB.
Cons: Some directivity error appears around 2.1kHz on-axis. Predicted in-room response needs about 1-2dB of correction to fit an ideal target curve. Vertical directivity is just okay, so listening height matters more than with a coincident design. Minimum impedance dips to 3.8 ohms with several peaks, a moderately demanding load. Requires DIY assembly (kit only), with additional Sehlin-mod parts and labor beyond the base kit price.
Full HiVi Swans 3.1A Sehlin Sound Solutions mod review and specifications →
| Bass Extension (-10dB) | 38Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 60Hz (measured, Audio Science Review) |
| DIY Kit | Yes |
| Dimensions | 16.5"H x 8.5"W x 13"D (420.0 x 215.0 x 330.0 mm) |
| Drivers | 6.5" Kevlar woofer, 2" Dome midrange, 1" Soft Dome tweeter |
| Impedance | 4 ohms nominal, 3.8 ohms minimum (measured, Audio Science Review) |
| Sensitivity | 86.5dB (measured, Audio Science Review) |
| Spinorama Preference Score | 5.8 (derived from ASR thread measurement data) |
| Spinorama Preference Score with Perfect Sub | 7.6 (derived from ASR thread measurement data) |
| Weight | 13.7 lbs (6.2 kg) |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- HiVi Swans 3.1A Sehlin Sound Solutions mod vs Klipsch RP-600M II
- HiVi Swans 3.1A Sehlin Sound Solutions mod vs ELAC Debut 3.0 DB63
- HiVi Swans 3.1A Sehlin Sound Solutions mod vs GR-Research X-LS Encore
- HiVi Swans 3.1A Sehlin Sound Solutions mod vs Polk Monitor XT20
- HiVi Swans 3.1A Sehlin Sound Solutions mod vs MoFi SourcePoint 10
- HiVi Swans 3.1A Sehlin Sound Solutions mod vs KEF Q Concerto Meta
- HiVi Swans 3.1A Sehlin Sound Solutions mod vs KEF R3 Meta
- HiVi Swans 3.1A Sehlin Sound Solutions mod vs AsciLab C6B
- See all 10 comparisons