Short answer: the KEF LS50 Meta. It ranks #4 of 160 bookshelf speakers by sound quality, rated 4.5/5, at $1,599. The Arendal Sound 1961 Bookshelf ranks #17, rated 4.2/5, at $900, $699 cheaper, not enough of a saving to outweigh the sound-quality gap.
The KEF LS50 Meta is the more accurate, deeper-bass choice. Uni-Q concentric driver mounts a 1” vented aluminum dome tweeter at the center of a 5.25” aluminum cone woofer, rated 79Hz-20kHz+. Its measured preference score, a predictor of how neutral it sounds, is 5.74 against 4.15 for the Arendal Sound 1961 Bookshelf. Its bass reaches about 68Hz before falling 3dB, against 108.4Hz for the Arendal Sound 1961 Bookshelf. The tradeoff: F3 of 67Hz and F10 of 42Hz mean it doesn’t get much below 50Hz in-room; a subwoofer is recommended for real bass.
The case for the Arendal Sound 1961 Bookshelf: Direct-to-consumer pricing at $900/pair backed by a 10-year speaker warranty (5-year on electronics) and a 60-day home audition with free return shipping. The catch: The sealed cabinet and compact 5.5” woofer cap bass extension at 108.4Hz (-3dB) / 54.9Hz (-10dB): the shallowest-extending speaker in this entire batch, a real tradeoff for the small footprint.
Buy the KEF LS50 Meta. It is rated higher for sound quality, and the $699 saving on the Arendal Sound 1961 Bookshelf is not enough to make up the difference.
Looking for alternatives? See the complete Passive Home rankings.
Specifications Side By Side
| KEF LS50 Meta | Arendal Sound 1961 Bookshelf | |
|---|---|---|
| Price | $1,599.00 per pair | $900 per pair |
| Ranked | #4 of 160 in Medium Size Bookshelf Speakers | #17 of 160 in Medium Size Bookshelf Speakers |
| Bass Extension (-10dB) | 43Hz (measured, Erin’s Audio Corner) | 54.9Hz (measured, spinorama.org) |
| Bass Extension (-3dB) | 68Hz (measured, Erin’s Audio Corner) | 108.4Hz (measured, spinorama.org) |
| Dimensions | 11.9”H x 7.9”W x 11”D (302 x 200 x 280.5 mm) | 28.7 x 16.3 x 15cm (11.3 x 6.4 x 5.9 in) each |
| Impedance | 8 ohms nominal (3.7 ohms minimum above 80Hz, measured by Erin’s Audio Corner) | 4 ohms nominal |
| Sensitivity | 83dB (measured average, Erin’s Audio Corner; 85dB manufacturer specified) | 84dB (2.83V/1m) |
| Drivers | 130 mm (5.25 in.) aluminium cone woofer, 25 mm (1 in.) vented aluminium dome with Metamaterial Absorption tweeter | 28mm tweeter, 5.5” woofer |
| Weight | 17.2 lbs (7.8 kg) each | 10.8 lbs (4.9 kg) each |
| Woofer Cabinet | ported, rear | Sealed |
| Spinorama Preference Score | 5.74 | 4.15 |
| Spinorama Preference Score with Perfect Sub | 7.88 | 7.14 |
| DIY Kit | No | No |
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The Two Speakers In Full
KEF LS50 Meta: $1,599.00 per pair Amazon Crutchfield eBay
Older model: the KEF LS50 (ranked lower, rated 3.9/5).
Pros: Uni-Q concentric driver mounts a 1” vented aluminum dome tweeter at the center of a 5.25” aluminum cone woofer, rated 79Hz-20kHz+. Speaker-to-speaker matching measured tight at roughly 0.5dB deviation between the pair tested, versus 2-3dB seen on some other speakers: likely why imaging stayed so precise. Imaging stays tight and focused even toed out, unlike most coincident designs where toe-out typically diffuses the image, giving more of an oval-shaped soundstage than a hard rectangular boundary. Horizontal and vertical directivity both hold to about ±50° at the -6dB point, so tonality stays consistent across roughly a 100° listening cone. The extended bass shelf is deliberately tuned for near-wall/boundary placement rather than the usual “pull it 3 feet into the room” advice, playing lower without excess boominess when placed close to a wall. At its frequent sale price, well below list, called a no-brainer for a compact stand-mount speaker. Independent ASR Klippel measurements corroborate this: very good directivity with the on- and off-axis curves tracking closely, and a predicted in-room response the reviewer called “very close to ideal.”. Measured bass extension of 68Hz (-3dB), with a measured sensitivity of 83dB.
Cons: F3 of 67Hz and F10 of 42Hz mean it doesn’t get much below 50Hz in-room; a subwoofer is recommended for real bass. A 2-3dB scoop around 2-4kHz shows up in both the listening window and sound power measurements, matching a subjectively noticed lack of attack and vocal clarity that the reviewer wanted to correct with about 2dB of EQ. An on-axis diffraction dip around 8kHz smooths out with about 15° of toe-out (typical for concentric designs, but still present at 0°). Distortion is elevated at low frequencies since the single 5.25” cone shares surface area with the tweeter housing, reducing effective radiating area; multitone distortion crosses the 3% threshold at 96dB/1m, making roughly 88dB or below the safer output ceiling. Moderate sensitivity (~83dB average) needed 2-3dB more amplifier gain than typical in testing. Adding a subwoofer at an 80Hz crossover only helps lower-midrange distortion, not the elevated distortion in the 1-2kHz and above-5kHz regions. ASR’s own Klippel testing found the same pattern in starker terms: THD is very good at 86dB SPL/1m but climbs past 100% in the bass at 96dB SPL/1m, confirming this is not a near-field speaker for high-output bass-heavy material. Cumulative spectral decay (waterfall) also shows a couple of resonances lingering in the 1-2kHz region.
Full KEF LS50 Meta review and specifications →
| Bass Extension (-10dB) | 43Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 68Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 11.9”H x 7.9”W x 11”D (302 x 200 x 280.5 mm) |
| Drivers | 130 mm (5.25 in.) aluminium cone woofer, 25 mm (1 in.) vented aluminium dome with Metamaterial Absorption tweeter |
| Impedance | 8 ohms nominal (3.7 ohms minimum above 80Hz, measured by Erin’s Audio Corner) |
| Sensitivity | 83dB (measured average, Erin’s Audio Corner; 85dB manufacturer specified) |
| Spinorama Preference Score | 5.74 |
| Spinorama Preference Score with Perfect Sub | 7.88 |
| Weight | 17.2 lbs (7.8 kg) each |
| Woofer Cabinet | ported, rear |
- Links
- Reviews, Comparisons and Sound Samples
- Erin’s Audio Corner: Unveiling the KEF LS50 Meta: The Truth Behind the Hype More from Erin’s Audio Corner →
- Erin’s Audio Corner Website KEF LS50 Meta
- Audio Science Review KEF LS50 Meta More from Audio Science Review →
- GR-Research: KEF LS50 Meta! Worthy of HYPE? More from GR-Research →
- Erin’s Audio Corner: My Top Picks of 2023: Must-Haves Under $3000
- Erin’s Audio Corner Measurements (spinorama.org)
- Head-to-Head Comparisons
- KEF LS50 Meta vs Ascend Sierra 1 v2
- KEF LS50 Meta vs Ascend Acoustics Luna V2 Mini-Monitor Ribbon
- KEF LS50 Meta vs Philharmonic Ceramic Mini
- KEF LS50 Meta vs XMechanik Mechano23 DIY
- KEF LS50 Meta vs Audio First Fidelia
- KEF LS50 Meta vs Ascend Acoustics HTM-200SE2
- KEF LS50 Meta vs Arendal 1961 Monitor
- KEF LS50 Meta vs SunAudio Purified 4
- See all 84 comparisons
Arendal Sound 1961 Bookshelf: $900 per pair Arendal Sound eBay
Same family: the Arendal 1961 Monitor (larger bookshelf, ranked higher, rated 4.3/5), the Arendal 1961 Tower (floorstanding, rated 4.4/5) and the Arendal Sound 1961 Center (center, rated 3.6/5).
Pros: Direct-to-consumer pricing at $900/pair backed by a 10-year speaker warranty (5-year on electronics) and a 60-day home audition with free return shipping. On-axis response is close to flat for a compact sealed design, tilting by only about 0.09dB per octave. Compact sealed 5.5” woofer + 28mm tweeter 2-way layout in a small 28.7 x 16.3 x 15cm, 4.9kg cabinet. Measured bass extension of 108.4Hz (-3dB).
Cons: The sealed cabinet and compact 5.5” woofer cap bass extension at 108.4Hz (-3dB) / 54.9Hz (-10dB): the shallowest-extending speaker in this entire batch, a real tradeoff for the small footprint. On-axis response is somewhat uneven, with an average deviation of about 0.53dB, so it is less smooth than pricier active speakers. Direct-to-consumer model means no local dealer for an in-person audition before buying (mitigated by the 60-day home trial).
Full Arendal Sound 1961 Bookshelf review and specifications →
| Bass Extension (-10dB) | 54.9Hz (measured, spinorama.org) |
|---|---|
| Bass Extension (-3dB) | 108.4Hz (measured, spinorama.org) |
| DIY Kit | No |
| Dimensions | 28.7 x 16.3 x 15cm (11.3 x 6.4 x 5.9 in) each |
| Drivers | 28mm tweeter, 5.5” woofer |
| Impedance | 4 ohms nominal |
| Sensitivity | 84dB (2.83V/1m) |
| Spinorama Preference Score | 4.15 |
| Spinorama Preference Score with Perfect Sub | 7.14 |
| Weight | 10.8 lbs (4.9 kg) each |
| Woofer Cabinet | Sealed |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons