Short answer: the KEF LS50 Meta. It ranks #4 of 179 bookshelf speakers by sound quality, rated 4.5/5, at $1,599.99. The PSB Alpha P5 ranks #62, rated 3.6/5, at $549, $1,050.99 cheaper, which does not close the gap in sound quality.
The KEF LS50 Meta is the more accurate choice. An iconic compact KEF speaker with highly accurate sound, pinpoint imaging and a coaxial driver that keeps tone even across the room. Its measured preference score, a predictor of how neutral it sounds, is 5.74 against 3.99 for the PSB Alpha P5. 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 PSB Alpha P5 is the deeper-bass option. Compact bookshelf speakers with a smooth direct response and broad dispersion that pair well with a subwoofer. Its bass reaches about 58.6Hz before falling 3dB, against 68Hz for the KEF LS50 Meta. The catch: Measured sensitivity is low at roughly 84dB, and the underdamped bass alignment (Q 0.42) trades some weight for control.
Buy the KEF LS50 Meta. It is rated higher for sound quality, and the $1,050.99 saving on the PSB Alpha P5 is not enough to make up the difference.
Looking for alternatives? See the complete Passive Home rankings.
An iconic compact KEF speaker with highly accurate sound, pinpoint imaging and a coaxial driver that keeps tone even across the room.
Compact bookshelf speakers with a smooth direct response and broad dispersion that pair well with a subwoofer.
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Specifications Side By Side
| KEF LS50 Meta | PSB Alpha P5 | |
|---|---|---|
| Price | $1,599.99 per pair | $549.00 per pair |
| Ranked | #4 of 179 in Medium Size Bookshelf Speakers | #62 of 179 in Medium Size Bookshelf Speakers |
| Bass Extension (-10dB) | 43Hz (measured, Erin’s Audio Corner) | about 44.4Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 68Hz (measured, Erin’s Audio Corner) | 58.6Hz (measured, ASR via spinorama.org) |
| Dimensions | 11.9”H x 7.9”W x 11”D (302 x 200 x 280.5 mm) | 11.4H x 6.7W x 9.5D in |
| Impedance | 8 ohms nominal (3.7 ohms minimum above 80Hz, measured by Erin’s Audio Corner) | 8 ohms |
| Sensitivity | 83dB (measured average, Erin’s Audio Corner; 85dB manufacturer specified) | 87dB specified; about 84dB measured |
| Drivers | 130 mm (5.25 in.) aluminium cone woofer, 25 mm (1 in.) vented aluminium dome with Metamaterial Absorption tweeter | 0.75” dome tweeter, 5.25” woofer |
| Weight | 17.2 lbs (7.8 kg) each | 10.1 lbs (4.6 kg) each |
| Woofer Cabinet | ported, rear | - |
| Spinorama Preference Score | 5.74 | 3.99 |
| Spinorama Preference Score with Perfect Sub | 7.88 | 6.25 |
| DIY Kit | No | No |
| Enclosure | - | 2-way passive, rear-ported |
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