Short answer: the Arendal Sound 1528 Bookshelf 8. It ranks #35 of 214 bookshelf speakers by sound quality, rated 4.4/5, at $6,499; the Focal Sopra N°1 ranks #88, rated 4.0/5, and costs $12,998, so there is little reason to consider the other one.
The Arendal Sound 1528 Bookshelf 8 is the better-sounding option. A 3-way standmount from Arendal’s flagship 1528 series, with the same 28mm waveguide tweeter and 5” midrange as the measured Arendal 1528 Monitor 8 (a 5.59 Spinorama preference score) and a single 8” woofer. The catch: No independent measurements yet, so its tonal balance and directivity can’t be compared directly with measured speakers; the rating is estimated from the measured Arendal 1528 Monitor 8.
What the Focal Sopra N°1 does well: A high-end two-way stand-mount with a 6.5” W sandwich cone woofer and a 1” beryllium inverted dome tweeter, with Focal’s TMD surround and NIC motor. The tradeoff: Audioholics’ measurements stop at 200Hz, so it has no preference score; the rating is estimated from that data and the Focal Theva N°1.
Buy the Arendal Sound 1528 Bookshelf 8. It is rated higher for sound quality than the Focal Sopra N°1 and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
About the ratings: neither speaker has been measured yet, so both ratings are estimated from measured siblings and predecessors (likely ranges: Arendal Sound 1528 Bookshelf 8 4.1 to 4.6; Focal Sopra N°1 3.6 to 4.4). Treat this verdict as provisional.
Looking for alternatives? See the complete Passive Home rankings.
Specifications Side By Side
| Arendal Sound 1528 Bookshelf 8 | Focal Sopra N°1 | |
|---|---|---|
| Price | $6,499 per pair | $12,998 per pair |
| Ranked | #35 of 214 in Large Size Bookshelf Speakers Estimated | #88 of 214 in Large Size Bookshelf Speakers Estimated |
| Drivers | 28mm tweeter, 5” midrange, 8” woofer | 6.5” W sandwich cone woofer, 1” (25mm) beryllium inverted dome tweeter |
| Frequency Response | 28Hz - 20kHz -6dB anechoic (manufacturer specified) | 45Hz-40kHz ±3dB (manufacturer specified) |
| Sensitivity | 84dB (2.83V/1m, manufacturer specified) | 89dB (2.83V/1m, manufacturer specified) |
| Impedance | 4 ohms nominal (manufacturer specified) | 8 ohms nominal (3.9 ohms minimum) |
| Bass Extension (-3dB) | 37Hz (manufacturer specified) | 45Hz (manufacturer specified) |
| Bass Extension (-10dB) | 19Hz (manufacturer specified) | - |
| Crossover Frequency | 420Hz, 2.8kHz | - |
| Woofer Cabinet | ported (port plug included) | ported |
| Dimensions | 21.9”H x 11.4”W x 14.5”D (555 x 290 x 368 mm) | 16.7”H x 11”W x 15.6”D (425 x 279 x 397 mm) |
| Weight | 66.1 lbs (30 kg) each | 41.9 lbs (19 kg) each |
| DIY Kit | No | No |
Related Speaker Comparisons
More top alternatives to Arendal Sound 1528 Bookshelf 8:
- Audio First Cadentia 3 vs Arendal Sound 1528 Bookshelf 8
- Arendal Sound 1528 Bookshelf 8 vs Arendal 1528 Monitor 8
- Focal Sopra N°1 vs Dynaudio Contour 20i
- Focal Sopra N°1 vs Yamaha NS-800A
- Paradigm Persona B vs Focal Sopra N°1
Prices on this page were last checked October 11, 2026 at 4:59 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.
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The Two Speakers In Full
Arendal Sound 1528 Bookshelf 8: $6,499 per pair Estimated Arendal Sound eBay
Same family: the Arendal 1528 Monitor 8 (larger bookshelf, ranked higher, rated 4.4/5), the Arendal Sound 1528 Tower 8 (floorstanding, estimated 4.5/5) and the Arendal Sound 1528 Center 8 (center, estimated 4.1/5).
Pros: A 3-way standmount from Arendal’s flagship 1528 series, with the same 28mm waveguide tweeter and 5” midrange as the measured Arendal 1528 Monitor 8 (a 5.59 Spinorama preference score) and a single 8” woofer. Arendal specifies ±2dB from 42Hz to 20kHz and 28Hz at -6dB, unusually deep for a standmount.
Cons: No independent measurements yet, so its tonal balance and directivity can’t be compared directly with measured speakers; the rating is estimated from the measured Arendal 1528 Monitor 8. Sensitivity is a low 84dB into 4 ohms, so it needs a powerful amplifier, and it weighs 30kg.
Full Arendal Sound 1528 Bookshelf 8 review and specifications →
| Released | 2024 (2 years ago) |
|---|---|
| Bass Extension (-10dB) | 19Hz (manufacturer specified) |
| Bass Extension (-3dB) | 37Hz (manufacturer specified) |
| Crossover Frequency | 420Hz, 2.8kHz |
| DIY Kit | No |
| Dimensions | 21.9”H x 11.4”W x 14.5”D (555 x 290 x 368 mm) |
| Drivers | 28mm tweeter, 5” midrange, 8” woofer |
| Frequency Response | 28Hz - 20kHz -6dB anechoic (manufacturer specified) |
| Impedance | 4 ohms nominal (manufacturer specified) |
| Sensitivity | 84dB (2.83V/1m, manufacturer specified) |
| Weight | 66.1 lbs (30 kg) each |
| Woofer Cabinet | ported (port plug included) |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons
Focal Sopra N°1: $12,998 per pair Estimated Focal eBay
Same family: the Focal Sopra N°2 (smaller floorstanding, estimated 4.1/5), the Focal Sopra N°3 (larger floorstanding, estimated 4.1/5) and the Focal Sopra Center (center, estimated 3.9/5).
Pros: A high-end two-way stand-mount with a 6.5” W sandwich cone woofer and a 1” beryllium inverted dome tweeter, with Focal’s TMD surround and NIC motor. Sensitivity is 89dB, and Focal rates the bass to 45Hz (±3dB).
Cons: Audioholics’ measurements stop at 200Hz, so it has no preference score; the rating is estimated from that data and the Focal Theva N°1. Impedance dips to 3.9 ohms.
Full Focal Sopra N°1 review and specifications →
| Released | Jun 2015 (11 years ago) |
|---|---|
| Bass Extension (-3dB) | 45Hz (manufacturer specified) |
| DIY Kit | No |
| Dimensions | 16.7”H x 11”W x 15.6”D (425 x 279 x 397 mm) |
| Drivers | 6.5” W sandwich cone woofer, 1” (25mm) beryllium inverted dome tweeter |
| Frequency Response | 45Hz-40kHz ±3dB (manufacturer specified) |
| Impedance | 8 ohms nominal (3.9 ohms minimum) |
| Sensitivity | 89dB (2.83V/1m, manufacturer specified) |
| Weight | 41.9 lbs (19 kg) each |
| Woofer Cabinet | ported |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons


