The KEF LS50 Wireless II ranks #14 out of 65 total Medium Size Powered Bookshelf Speakers for sound quality. See all Powered Home rankings for every top pick.

Brand: KEF

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KEF LS50 Wireless II - ranked #14 of 65 Medium Size Powered Bookshelf Speakers · Editor's rating 4.3/5

Check price at Amazon ($2,999.00 per pair) →

#14 KEF LS50 Wireless II: $2,999.00 per pair Amazon KEF Crutchfield eBay

Pros: Erin’s measurements give preference scores of 4.52 standalone and 6.59 with an ideal subwoofer, with a -3dB point around 51Hz. The coincident Uni-Q layout helps preserve tonal consistency across horizontal and vertical listening positions. Low listening-window narrow-band deviation of 0.308 supports relatively clean midrange reproduction. HDMI eARC and streaming functions make it a capable all-in-one stereo system. Measured bass extension of 51.3Hz (-3dB).

Cons: The 3.0dB response span is good but not reference-leading, and dispersion still varies with frequency. Compact bass drivers limit deep-bass output. App placement adjustments are not the same as microphone-based automatic room correction. The price and primary/secondary architecture are practical trade-offs; neither driver geometry nor a single directivity statistic guarantees the best sound in every room.

How it compares: Just above it: JBL 305P MKII - $2680 cheaper, 199W less output power. Just below it: Vanatoo Transparent One Encore Plus - $2299 cheaper, 40W less output power.

Amplifier Power	280W (LF) + 100W (HF) per speaker, bi-amped
App	KEF Connect (placement EQ presets, source selection, firmware updates)
Bass Extension (-10dB)	41.5Hz (measured, spinorama.org)
Bass Extension (-3dB)	51.3Hz (measured, spinorama.org)
Bluetooth	Yes, 4.2
Dimensions	12" x 7.9" x 12.2" (305 x 200 x 311 mm) each
Drivers	Uni-Q coincident array: 130mm aluminum woofer + 25mm MAT aluminum dome tweeter
EQ	Yes, fixed placement presets (desk/bookshelf/wall-mount) - no automatic room correction
Frequency Response	45Hz - 28kHz ±3dB
Inputs	HDMI eARC, optical, digital coaxial, 3.5mm analog, USB-A (service), Ethernet
Maximum SPL	108dB at 1m (manufacturer specified)
Outputs	RCA subwoofer
Spinorama Preference Score	4.52
Spinorama Preference Score with Perfect Sub	6.59
Subwoofer Output	Yes
Weight	44.3 lbs (20.1 kg) for the pair

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