Short answer: the KEF Q Concerto Meta. It ranks #11 of 222 bookshelf speakers by sound quality (rated 4.6/5); the Mission LX-3 MKII ranks #138 (rated 3.6/5).
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 4.17 for the Mission LX-3 MKII. Its bass reaches about 53Hz before falling 3dB, against 67.4Hz for the Mission LX-3 MKII. The catch: Radiation pattern measures about ±50°, narrower than the reviewer’s preferred ±60° for a stronger sense of envelopment.
Why pick the Mission LX-3 MKII: Large affordable standmount speakers with a 6.5 inch woofer, useful bass and easy to drive sensitivity. The catch: On-axis smoothness of 0.217 and predicted in-room smoothness of 0.344 reveal clear response unevenness, with a -0.46dB-per-octave downward tilt.
Buy the KEF Q Concerto Meta. It is rated higher for sound quality than the Mission LX-3 MKII.
Still deciding? The full Passive Home rankings cover every ranked option.
A neutral three way bookshelf speaker that sounds consistent from seat to seat, with smooth treble that many rivals at its price lack.
Large affordable standmount speakers with a 6.5 inch woofer, useful bass and easy to drive sensitivity.
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 | Mission LX-3 MKII | |
|---|---|---|
| Price | $1,399.99 per pair | £249 per pair |
| Ranked | #11 of 222 in Large Size Bookshelf Speakers | #138 of 222 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 35Hz (measured, Erin’s Audio Corner) | 42.5Hz (derived from ASR on-axis curve, spinorama.org) |
| Bass Extension (-3dB) | 53Hz (measured, Erin’s Audio Corner) | 67.4Hz (measured, ASR via spinorama.org) |
| Dimensions | 16.3”H x 8.3”W x 12.4”D (414 x 210.8 x 315 mm) | 13.6H x 8.9W x 12.1D in |
| Impedance | 4 ohms nominal (3.3 ohms minimum above 80Hz, measured by Erin’s Audio Corner) | 8 ohms nominal, 4.1 ohms minimum |
| 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 | 1” microfiber-dome tweeter, 6.5” composite-fiber woofer |
| Sensitivity | 84.2dB (measured average, Erin’s Audio Corner) | 88dB |
| Weight | 20.9 lbs (9.5 kg) each | 18.5 lbs (8.4 kg) each |
| Woofer Cabinet | ported, rear | - |
| Spinorama Preference Score | 6.01 | 4.17 |
| Spinorama Preference Score with Perfect Sub | 7.71 | 6.42 |
| DIY Kit | No | No |
| Enclosure | - | 2-way, bass-reflex |
| Country | - | United Kingdom (design) |
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