Short answer: the HiVi Swans 3.1A Sehlin mod, on relative rank. It places #97 of 222 against #146 of 222 for the GR-Research X-LS Encore. The Swans’ CEA2034 spinorama shows a mostly smooth on-axis response, though it has some directivity error around 2.1kHz; the X-LS Encore shows a slight upper-bass depression and lower-bass peaking on-axis.
Buy the HiVi Swans 3.1A Sehlin Sound Solutions mod. It is rated higher for sound quality than the GR-Research X-LS Encore and costs less, so only choose the other one for a particular feature it does better.
Looking for alternatives? See the complete Passive Home rankings.
Prices on this page were last checked November 7, 2026 at 7:34 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.
Specifications Side By Side
| GR-Research X-LS Encore | HiVi Swans 3.1A Sehlin Sound Solutions mod | |
|---|---|---|
| Price | $1300 per pair | $364.99 per pair for the kit (assembly required) |
| Ranked | #146 of 222 in Large Size Bookshelf Speakers | #97 of 222 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 44Hz (measured, Audio Science Review) | 38Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 64Hz (measured, Audio Science Review) | 60Hz (measured, Audio Science Review) |
| Dimensions | 13.5”H x 8.5”W x 12.1”D (342.9 x 215.9 x 308 mm) | 16.5”H x 8.5”W x 13”D (420.0 x 215.0 x 330.0 mm) |
| Impedance | 8 ohms | 4 ohms nominal, 3.8 ohms minimum (measured, Audio Science Review) |
| Sensitivity | 84.4dB (measured by Audio Science Review on the kit; 87dB manufacturer specified) | 86.5dB (measured, Audio Science Review) |
| Drivers | 6.5” Peerless M-165 paper composite cone, non-resonant polymer frame woofer, 1” Peerless India T26SG tweeter | 6.5” Kevlar woofer, 2” Dome midrange, 1” Soft Dome tweeter |
| Weight | 17 lbs (7.7 kg) each | 13.7 lbs (6.2 kg) |
| Woofer Cabinet | ported | ported, rear |
| Spinorama Preference Score | 5.05 (measured, spinorama.org) | 5.8 (derived from ASR thread measurement data) |
| Spinorama Preference Score with Perfect Sub | 7.42 (measured, spinorama.org) | 7.6 (derived from ASR thread measurement data) |
| DIY Kit | - | Yes |
Related Speaker Comparisons
How HiVi Swans 3.1A Sehlin Sound Solutions mod compares with other leading options:
- GR-Research NX-Studio vs HiVi Swans 3.1A Sehlin Sound Solutions mod
- AsciLab C6B vs HiVi Swans 3.1A Sehlin Sound Solutions mod
- KEF R3 Meta vs HiVi Swans 3.1A Sehlin Sound Solutions mod
- KEF Q Concerto Meta vs HiVi Swans 3.1A Sehlin Sound Solutions mod
- KEF R3 vs HiVi Swans 3.1A Sehlin Sound Solutions mod