Short answer: the Perlisten S4b for better sound quality, the KEF Q Concerto Meta for the lower price. The Perlisten S4b ranks #2 of 222 bookshelf speakers, rated 4.8/5, at $8,000. The KEF Q Concerto Meta ranks #11, rated 4.6/5, at $1,399.99, $6,600.01 cheaper.
The KEF Q Concerto Meta is the more accurate, deeper-bass option. A neutral three way bookshelf speaker that sounds consistent from seat to seat, with smooth treble that many rivals at its price lack. Its measured preference score, a predictor of how neutral it sounds, is 6.01 against 5.35 for the Perlisten S4b. Its bass reaches about 53Hz before falling 3dB, against 78Hz for the Perlisten S4b. The catch: Radiation pattern measures about ±50°, narrower than the reviewer’s preferred ±60° for a stronger sense of envelopment.
The case for the Perlisten S4b: A compact sealed bookshelf speaker with reference grade accuracy, exceptionally smooth dispersion, and very low distortion at high volume. The catch: Erin measured only 84.5dB sensitivity and an impedance minimum just under 4 ohms, a difficult efficiency/load combination that deserves substantial clean amplification.
Buy the KEF Q Concerto Meta if the price matters more than sound quality. Buy the Perlisten S4b if sound quality matters more than the price.
Looking for alternatives? See the complete Passive Home rankings.
A neutral three way bookshelf speaker that sounds consistent from seat to seat, with smooth treble that many rivals at its price lack.
A compact sealed bookshelf speaker with reference grade accuracy, exceptionally smooth dispersion, and very low distortion at high volume.
Prices on this page were last checked October 31, 2026 at 7:11 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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Specifications Side By Side
| KEF Q Concerto Meta | Perlisten S4b | |
|---|---|---|
| Price | $1,399.99 per pair | $8,000 per pair |
| Ranked | #11 of 222 in Large Size Bookshelf Speakers | #2 of 222 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 35Hz (measured, Erin’s Audio Corner) | 40Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 53Hz (measured, Erin’s Audio Corner) | 78Hz (measured, Erin’s Audio Corner) |
| Dimensions | 16.3”H x 8.3”W x 12.4”D (414 x 210.8 x 315 mm) | 16.5”H x 9.4”W x 7.3”D |
| Impedance | 4 ohms nominal (3.3 ohms minimum above 80Hz, measured by Erin’s Audio Corner) | Just under 4 ohms minimum (measured, Erin’s Audio Corner) |
| Drivers | 165 mm (6.5 in.) hybrid aluminium cone woofer, 100 mm (4 in.) aluminium cone midrange, 19 mm (0.75 in.) vented aluminium dome with MAT tweeter | DPC array with 28mm beryllium tweeter and dual 28mm midrange domes; 7” woofer |
| Sensitivity | 84.2dB (measured average, Erin’s Audio Corner) | 84.5dB/2.83V/1m (measured, Erin’s Audio Corner) |
| Weight | 20.9 lbs (9.5 kg) each | 24.3 lbs (11 kg) each |
| Woofer Cabinet | ported, rear | sealed |
| Spinorama Preference Score | 6.01 | 5.35 |
| Spinorama Preference Score with Perfect Sub | 7.71 | 8.01 |
| DIY Kit | No | No |
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