Short answer: the KEF LS50 Wireless II if sound quality matters most, the KEF LSX II LT if price matters most. The KEF LS50 Wireless II ranks #18 of 100 powered bookshelf speakers, rated 4.3/5, at $2,999. The KEF LSX II LT ranks #35, rated 4.0/5, at $549.99, $2,449.01 cheaper.
The LS50 Wireless II is the larger, more capable system. Its 130mm woofer and 25mm MAT tweeter in a coaxial Uni-Q array run on 380W per speaker, reaching 51Hz before falling 3dB, with a preference score of 5.43. It adds an analog input and HDMI eARC alongside streaming, so a turntable or TV plugs straight in. The trade is a much higher price and cabinets that each weigh about 22 lbs (10 kg).
The LSX II LT gets much of the Uni-Q sound for far less. Its 115mm coaxial driver gives broad, consistent dispersion of about 60 degrees side to side and up and down, and it reaches 55Hz before falling 3dB. HDMI and USB inputs make it a neat TV or desk system. The small drivers start compressing around 88 to 92dB at 1m, and this LT version has no analog input.
Buy the KEF LSX II LT when the price outweighs sound quality for you, and the KEF LS50 Wireless II when sound quality outweighs the price instead.
Still deciding? The full Powered Home rankings cover every ranked option.
Specifications Side By Side
| KEF LSX II LT | KEF LS50 Wireless II | |
|---|---|---|
| Price | $549.99 per pair | $2,999.00 per pair |
| Ranked | #35 of 100 in Medium Size Powered Bookshelf Speakers | #18 of 100 in Medium Size Powered Bookshelf Speakers |
| Dimensions | 9.5”H x 6.1”W x 7.1”D (241.3 x 154.9 x 180.3 mm) | 12” x 7.9” x 12.2” (305 x 200 x 311 mm) each |
| Inputs | Wifi, USB-C, HDMI, Optical, Bluetooth | HDMI eARC, optical, digital coaxial, 3.5mm analog, USB-A (service), Ethernet |
| Outputs | RCA Subwoofer | RCA subwoofer |
| Drivers | 115mm (4.5in.) magnesium/aluminium alloy cone woofer, 19mm (0.75in.) aluminium dome tweeter | Uni-Q coincident array: 130mm aluminum woofer + 25mm MAT aluminum dome tweeter |
| Weight | 15 lbs (6.8 kg) | 44.3 lbs (20.1 kg) for the pair |
| App | No | KEF Connect (placement EQ presets, source selection, firmware updates) |
| Bluetooth | Yes | Yes |
| EQ | No | Yes, fixed placement presets (desk/bookshelf/wall-mount) - no automatic room correction |
| Amplifier Power | 100w RMS Per Speaker | 280W (LF) + 100W (HF) per speaker, bi-amped |
| Bass Extension (-3dB) | 55Hz (measured, Erin’s Audio Corner) | 51.3Hz (measured, spinorama.org) |
| Bass Extension (-10dB) | 46Hz (measured, Erin’s Audio Corner) | 41.5Hz (measured, spinorama.org) |
| Sensitivity | 84dB (measured at 0.3V/1m, Erin’s Audio Corner) | - |
| Spinorama Preference Score | 4.81 | 5.43 |
| Spinorama Preference Score with Perfect Sub | 7.03 | 7.51 |
| Subwoofer Output | Yes | Yes |
| XLR Input | No | No |
| RCA Input | No | No |
| TRS Input | No | No |
| Optical Input | Yes | Yes |
| Coaxial Input | No | Yes |
| USB Input | Yes | No |
| HDMI Input | Yes | Yes |
| AES Input | No | No |
| Aux Input | No | Yes |
| Frequency Response | 54Hz - 28kHz (±3dB) (Manufacturer specified) | 45Hz - 28kHz ±3dB |
| Bluetooth Version | - | 4.2 |
| Maximum SPL | - | 108dB at 1m (manufacturer specified) |
Related Speaker Comparisons
How KEF LS50 Wireless II compares with other leading options:
- Genelec 8331A vs KEF LS50 Wireless II
- Neumann KH120 MKII vs KEF LS50 Wireless II
- Genelec 8030C vs KEF LS50 Wireless II
- Neumann KH80 DSP vs KEF LS50 Wireless II
- Dynaudio LYD 5 vs KEF LS50 Wireless II
Prices on this page were last checked October 7, 2026 at 9:25 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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The Two Speakers In Full
KEF LSX II LT: $549.99 per pair Amazon eBay
Same family: the KEF LSX II (larger bookshelf, estimated 4.1/5), the KEF LS50 Wireless II (larger bookshelf, ranked higher, rated 4.3/5) and the KEF LS60 (floorstanding, rated 4.8/5).
Pros: The coincident driver provides useful consistency across listening positions, and the app offers placement and subwoofer adjustments. Erin’s measurements give preference scores of 4.81 standalone and 7.03 with an ideal subwoofer, with -3dB bass around 56Hz. HDMI and USB connectivity make it convenient for a small TV or desktop system. Horizontal and vertical dispersion both reach about ±60°, giving a broad sweet spot for more than one seat. Measured bass extension of 55Hz (-3dB), with a measured sensitivity of 84dB.
Cons: The 3.4dB midrange response span and treble-region dips keep it below more neutral monitors. The existing review finds bass compression around 88-92dB/1m and rising distortion at higher levels, so the small drivers suit close listening rather than a large room. This LT version has no analog input; a turntable cannot plug straight into it.
Full KEF LSX II LT review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 100w RMS Per Speaker |
| App | No |
| Aux Input | No |
| Bass Extension (-10dB) | 46Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 55Hz (measured, Erin’s Audio Corner) |
| Bluetooth | Yes |
| Coaxial Input | No |
| Dimensions | 9.5”H x 6.1”W x 7.1”D (241.3 x 154.9 x 180.3 mm) |
| Drivers | 115mm (4.5in.) magnesium/aluminium alloy cone woofer, 19mm (0.75in.) aluminium dome tweeter |
| EQ | No |
| Frequency Response | 54Hz - 28kHz (±3dB) (Manufacturer specified) |
| HDMI Input | Yes |
| Inputs | Wifi, USB-C, HDMI, Optical, Bluetooth |
| Optical Input | Yes |
| Outputs | RCA Subwoofer |
| RCA Input | No |
| Sensitivity | 84dB (measured at 0.3V/1m, Erin’s Audio Corner) |
| Spinorama Preference Score | 4.81 |
| Spinorama Preference Score with Perfect Sub | 7.03 |
| Subwoofer Output | Yes |
| TRS Input | No |
| USB Input | Yes |
| Weight | 15 lbs (6.8 kg) |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
- Erin’s Audio Corner: Transform Your Sound System with the KEF LSX II LT Speaker More from Erin’s Audio Corner →
- Erin’s Audio Corner Website: KEF LSX II LT
- Erin’s Audio Corner Measurements (spinorama.org)
- Jasper Tech: Best Desktop Computer Speakers for Every Budget – 2026 More from Jasper Tech →
- Jasper Tech: Best Bookshelf Speakers For TV & Gaming - 2025
- Jasper Tech: Best Powered Bookshelf Speakers for Every Budget - 2025
- Head-to-Head Comparisons
KEF LS50 Wireless II: $2,999.00 per pair Amazon KEF Crutchfield eBay
Same family: the KEF LSX II LT (smaller bookshelf, ranked lower, rated 4/5), the KEF LSX II (smaller bookshelf, estimated 4.1/5) and the KEF LS60 (floorstanding, rated 4.8/5).
Pros: Erin’s measurements give preference scores of 5.43 standalone and 7.51 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.
Full KEF LS50 Wireless II review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 280W (LF) + 100W (HF) per speaker, bi-amped |
| App | KEF Connect (placement EQ presets, source selection, firmware updates) |
| Aux Input | Yes |
| Bass Extension (-10dB) | 41.5Hz (measured, spinorama.org) |
| Bass Extension (-3dB) | 51.3Hz (measured, spinorama.org) |
| Bluetooth | Yes |
| Bluetooth Version | 4.2 |
| Coaxial Input | Yes |
| 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 |
| HDMI Input | Yes |
| Inputs | HDMI eARC, optical, digital coaxial, 3.5mm analog, USB-A (service), Ethernet |
| Maximum SPL | 108dB at 1m (manufacturer specified) |
| Optical Input | Yes |
| Outputs | RCA subwoofer |
| RCA Input | No |
| Spinorama Preference Score | 5.43 |
| Spinorama Preference Score with Perfect Sub | 7.51 |
| Subwoofer Output | Yes |
| TRS Input | No |
| USB Input | No |
| Weight | 44.3 lbs (20.1 kg) for the pair |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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- KEF LS50 Wireless II vs Vanatoo Transparent One Encore Plus
- KEF LS50 Wireless II vs Klipsch The Fives
- KEF LS50 Wireless II vs IK Multimedia iLoud MTM MKII
- KEF LS50 Wireless II vs Genelec 8020D
- KEF LS50 Wireless II vs Kali Audio SM-5
- KEF LS50 Wireless II vs Kali Audio IN-5
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- See all 46 comparisons