Short answer: the ELAC Debut 3.0 DB63. It ranks #49 of 222 bookshelf speakers by sound quality, rated 4.2/5, at $469.99. The HiVi Swans 3.1A Sehlin Sound Solutions mod ranks #97, rated 3.9/5, at $364.99, $105 cheaper, which does not close the gap in sound quality.
Choose the ELAC Debut 3.0 DB63 for 1” aluminum dome tweeter with a distinctive partial-lens waveguide: Watch for: a dip in the lower midrange (300-600Hz, about 1.5dB) reduces vocal warmth and can make voices sound slightly hollow. It costs more too, at $469.99 against $364.99.
Choose the HiVi Swans 3.1A Sehlin Sound Solutions mod for CEA2034 spinorama shows a mostly smooth on-axis response for a DIY: Watch for: some directivity error appears around 2.1kHz on-axis. It’s also the cheaper of the two, at $364.99 against $469.99.
Buy the ELAC Debut 3.0 DB63. It is rated higher for sound quality, and saving $105 with the HiVi Swans 3.1A Sehlin Sound Solutions mod does not make up for the sound-quality gap.
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Specifications Side By Side
| ELAC Debut 3.0 DB63 | HiVi Swans 3.1A Sehlin Sound Solutions mod | |
|---|---|---|
| Price | $469.99 per pair | $364.99 per pair for the kit (assembly required) |
| Ranked | #49 of 222 in Large Size Bookshelf Speakers | #97 of 222 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 40Hz (measured, Erin’s Audio Corner) | 38Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 76Hz (measured, Erin’s Audio Corner) | 60Hz (measured, Audio Science Review) |
| Dimensions | 13.3”H x 7.7”W x 11.7”D (337.8 x 195.6 x 297.2 mm) | 16.5”H x 8.5”W x 13”D (420.0 x 215.0 x 330.0 mm) |
| Impedance | 6 ohms nominal (4.4 ohms minimum, measured, Erin’s Audio Corner) | 4 ohms nominal, 3.8 ohms minimum (measured, Audio Science Review) |
| Sensitivity | 86.2dB (measured, Erin’s Audio Corner) | 86.5dB (measured, Audio Science Review) |
| Drivers | 6.5” Aramid Fiber woofer, 1” soft dome tweeter | 6.5” Kevlar woofer, 2” Dome midrange, 1” Soft Dome tweeter |
| Weight | 17.2 lbs (7.8 kg) each | 13.7 lbs (6.2 kg) |
| Woofer Cabinet | ported, rear | ported, rear |
| DIY Kit | No | Yes |
| 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) |
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