Short answer: the HiVi Swans 3.1A mod for budget DIY, the AsciLab C6B for a finished waveguide design. The Swans mod is a DIY three-way kit whose CEA2034 spinorama shows a mostly smooth on-axis response, with some directivity error around 2.1kHz. The C6B’s 1” aluminum ceramic dome on a large waveguide and 6” ceramic cone woofer roll off around 50Hz in-room (F3 54Hz, F10 35Hz), so it too wants a subwoofer.
Buy the AsciLab C6B when sound quality outweighs the price for you, and the HiVi Swans 3.1A Sehlin Sound Solutions mod when the price outweighs sound quality instead.
Looking for alternatives? See the complete Passive Home rankings.
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Specifications Side By Side
| AsciLab C6B | HiVi Swans 3.1A Sehlin Sound Solutions mod | |
|---|---|---|
| Price | $1145 per pair | $364.99 per pair for the kit (assembly required) |
| Ranked | #6 of 222 in Large Size Bookshelf Speakers | #97 of 222 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 35Hz (measured, Erin’s Audio Corner) | 38Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 54Hz (measured, Erin’s Audio Corner) | 60Hz (measured, Audio Science Review) |
| Dimensions | 15.7”H x 8”W x 10.4”D (398.8 x 203.2 x 264.2 mm) | 16.5”H x 8.5”W x 13”D (420.0 x 215.0 x 330.0 mm) |
| Impedance | 4 ohms nominal, 2.6 ohms minimum (measured, Erin’s Audio Corner) | 4 ohms nominal, 3.8 ohms minimum (measured, Audio Science Review) |
| Sensitivity | 85.6dB (measured, Erin’s Audio Corner) | 86.5dB (measured, Audio Science Review) |
| Drivers | 6” Aluminium Ceramic Cone with cast Aluminium Chassis woofer, 1” Aluminium Ceramic Dome tweeter | 6.5” Kevlar woofer, 2” Dome midrange, 1” Soft Dome tweeter |
| Weight | 18.5 lbs (8.4 kg) each | 13.7 lbs (6.2 kg) |
| Woofer Cabinet | passive radiator | ported, rear |
| Spinorama Preference Score | 6.33 | 5.8 (derived from ASR thread measurement data) |
| Spinorama Preference Score with Perfect Sub | 8.28 | 7.6 (derived from ASR thread measurement data) |
| DIY Kit | No | Yes |
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