Short answer: the Focal Alpha 50 EVO for level headroom, the KEF LSX II LT for driver integration. The Focal is more neutral than the great HS5, while the KEF’s coaxial (Uni-Q-style) driver keeps the tweeter centered in the midrange. The KEF’s small drivers are SPL-limited, though, with bass compression kicking in around 88-92dB/1m per speaker.
Buy the KEF LSX II LT. It is rated higher for sound quality, and the $91.99 you would save on the Focal Alpha 50 EVO does not close the gap.
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Specifications Side By Side
| Focal Alpha 50 EVO | KEF LSX II LT | |
|---|---|---|
| Price | $658 per pair | $749.99 per pair |
| Ranked | #53 of 108 in Medium Size Powered Bookshelf Speakers | #36 of 108 in Medium Size Powered Bookshelf Speakers |
| Dimensions | 12.2”H x 9”W x 9.4”D (309.9 x 228.6 x 238.8 mm) | 9.5”H x 6.1”W x 7.1”D (241.3 x 154.9 x 180.3 mm) |
| Frequency Response | 45 Hz - 22 kHz (+-3 dB) (Manufacturer specified) | 54Hz - 28kHz (±3dB) (Manufacturer specified) |
| Inputs | XLR, TRS, RCA | Wifi, USB-C, HDMI, Optical, Bluetooth |
| Weight | 13.2 lbs (6.0 kg) each | 15 lbs (6.8 kg) |
| Drivers | 5” (127mm) woofer | 115mm (4.5in.) magnesium/aluminium alloy cone woofer, 19mm (0.75in.) aluminium dome tweeter |
| App | No | No |
| Bluetooth | No | Yes |
| EQ | Yes (Room adjustment) | No |
| Amplifier Power | 60w Per Speaker | 100w RMS Per Speaker |
| Spinorama Preference Score | 1.04 | 4.81 |
| Spinorama Preference Score with Perfect Sub | 5.70 | 7.03 |
| XLR Input | Yes | No |
| RCA Input | Yes | No |
| TRS Input | Yes | No |
| Optical Input | No | Yes |
| Coaxial Input | No | No |
| USB Input | No | Yes |
| HDMI Input | No | Yes |
| AES Input | No | No |
| Aux Input | No | No |
| Outputs | - | RCA Subwoofer |
| Bass Extension (-3dB) | - | 55Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | - | 46Hz (measured, Erin’s Audio Corner) |
| Sensitivity | - | 84dB (measured at 0.3V/1m, Erin’s Audio Corner) |
| Subwoofer Output | - | Yes |
| Bluetooth Version | - | 5.0 |
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