Arendal Sound 1528 Bookshelf 8 vs Focal Sopra N°1

Last updated: October 11, 2026

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.

Arendal Sound 1528 Bookshelf 8 vs Focal Sopra N°1

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.

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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
Drivers28mm tweeter, 5” midrange, 8” woofer6.5” W sandwich cone woofer, 1” (25mm) beryllium inverted dome tweeter
Frequency Response28Hz - 20kHz -6dB anechoic (manufacturer specified)45Hz-40kHz ±3dB (manufacturer specified)
Sensitivity84dB (2.83V/1m, manufacturer specified)89dB (2.83V/1m, manufacturer specified)
Impedance4 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 Frequency420Hz, 2.8kHz-
Woofer Cabinetported (port plug included)ported
Dimensions21.9”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)
Weight66.1 lbs (30 kg) each41.9 lbs (19 kg) each
DIY KitNoNo

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The Two Speakers In Full

Arendal Sound 1528 Bookshelf 8: $6,499 per pair Estimated Arendal Sound eBay

Arendal Sound 1528 Bookshelf 8 ranking card

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.

Released2024 (2 years ago)
Bass Extension (-10dB)19Hz (manufacturer specified)
Bass Extension (-3dB)37Hz (manufacturer specified)
Crossover Frequency420Hz, 2.8kHz
DIY KitNo
Dimensions21.9”H x 11.4”W x 14.5”D (555 x 290 x 368 mm)
Drivers28mm tweeter, 5” midrange, 8” woofer
Frequency Response28Hz - 20kHz -6dB anechoic (manufacturer specified)
Impedance4 ohms nominal (manufacturer specified)
Sensitivity84dB (2.83V/1m, manufacturer specified)
Weight66.1 lbs (30 kg) each
Woofer Cabinetported (port plug included)

Focal Sopra N°1: $12,998 per pair Estimated Focal eBay

Focal Sopra N°1 ranking card

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.

ReleasedJun 2015 (11 years ago)
Bass Extension (-3dB)45Hz (manufacturer specified)
DIY KitNo
Dimensions16.7”H x 11”W x 15.6”D (425 x 279 x 397 mm)
Drivers6.5” W sandwich cone woofer, 1” (25mm) beryllium inverted dome tweeter
Frequency Response45Hz-40kHz ±3dB (manufacturer specified)
Impedance8 ohms nominal (3.9 ohms minimum)
Sensitivity89dB (2.83V/1m, manufacturer specified)
Weight41.9 lbs (19 kg) each
Woofer Cabinetported