The KEF LS50 ranks #37 out of 144 total Medium Size Bookshelf Speakers for sound quality. See all Passive Home rankings for every top pick.
Brand: KEF
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#37 KEF LS50: $1,499.99 per pair Discontinued eBay
Newer model: the KEF LS50 Meta, ranked higher, rated 4.5/5.
Pros: A compact two-way built around KEF’s 5.25” Uni-Q coaxial driver, which places a 1” aluminium tweeter in the center of the woofer. Audio Science Review measured a very flat on-axis response (0.21 average deviation) and smooth sound power, so it sounds natural in a room. Measured bass extension of 82.8Hz (-3dB).
Cons: Bass is limited, 82.8Hz (-3dB) and about 44Hz (-10dB), and sensitivity is low at 85dB, so it needs a capable amplifier and benefits from a subwoofer. Directivity is less even than its flat on-axis response suggests, for a preference score of 4.39 that reaches 6.62 with an ideal subwoofer. KEF replaced it with the LS50 Meta in 2020. Discontinued.
How it compares: Just above it: Wharfedale EVO 5.1 - $501 cheaper, 2Hz higher bass extension (-3dB). Just below it: Neumi BS5 - $1360 cheaper, 1Hz lower bass extension (-3dB).
| Bass Extension (-10dB) | about 44.4Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 82.8Hz (measured, Audio Science Review) |
| DIY Kit | No |
| Dimensions | 11.9”H x 7.9”W x 10.9”D (302 x 200 x 278 mm) |
| Drivers | 5.25” (130mm) Uni-Q magnesium/aluminium alloy woofer with coaxial 1” (25mm) vented aluminium dome tweeter |
| Frequency Response | 79Hz-28kHz ±3dB (manufacturer specified) |
| Impedance | 8 ohms nominal (3.5 ohms minimum) |
| Sensitivity | 85dB (2.83V/1m, manufacturer specified) |
| Spinorama Preference Score | 4.39 |
| Spinorama Preference Score with Perfect Sub | 6.62 |
| Weight | 15.9 lbs (7.2 kg) each |
| Woofer Cabinet | ported, rear |
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