Short answer: the KEF LS50 Wireless II. It ranks #18 of 100 powered bookshelf speakers by sound quality, rated 4.3/5, at $2,999; the Kali Audio SM-5 ranks #25, rated 4.2/5, at $2,998. The price gap is small enough that the sound-quality ranking should decide it.
The Kali Audio SM-5 is the deeper-bass pick. Erin’s measurements show bass reaching -3dB around 43Hz and a 2.8dB midrange response span. Its bass reaches about 45Hz before falling 3dB, against 51.3Hz for the KEF LS50 Wireless II. The tradeoff: Scores of 5.18 standalone and 7.13 with an ideal subwoofer are good but below the leading reference monitors, so its advanced driver layout does not justify a near-top ranking by itself.
Why pick the KEF LS50 Wireless II: Erin’s measurements give preference scores of 5.43 standalone and 7.51 with an ideal subwoofer, with a -3dB point around 51Hz. It keeps a wired aux input, which the Kali Audio SM-5 lacks. The tradeoff: The 3.0dB response span is good but not reference-leading, and dispersion still varies with frequency.
Buy the KEF LS50 Wireless II. It is rated higher for sound quality, and the $1 saving on the Kali Audio SM-5 is not enough to make up the difference.
Still deciding? The full Powered Home rankings cover every ranked option.
Specifications Side By Side
| Kali Audio SM-5 | KEF LS50 Wireless II | |
|---|---|---|
| Price | $2,998 per pair | $2,999.00 per pair |
| Ranked | #25 of 100 in Medium Size Powered Bookshelf Speakers | #18 of 100 in Medium Size Powered Bookshelf Speakers |
| Bass Extension (-10dB) | 39Hz (measured, Erin’s Audio Corner) | 41.5Hz (measured, spinorama.org) |
| Bass Extension (-3dB) | 45Hz (measured, Erin’s Audio Corner) | 51.3Hz (measured, spinorama.org) |
| Inputs | XLR/TRS, AES/EBU (BNC), RJ45 network control | HDMI eARC, optical, digital coaxial, 3.5mm analog, USB-A (service), Ethernet |
| Drivers | 1” coaxial tweeter, 4” coaxial midrange, 5” mid-bass woofer | Uni-Q coincident array: 130mm aluminum woofer + 25mm MAT aluminum dome tweeter |
| App | Kali Audio DSP software (free download) | KEF Connect (placement EQ presets, source selection, firmware updates) |
| Bluetooth | No | Yes |
| EQ | Yes, per-speaker DSP | Yes, fixed placement presets (desk/bookshelf/wall-mount) - no automatic room correction |
| Weight | 20.9 lbs (9.5 kg) each | 44.3 lbs (20.1 kg) for the pair |
| Amplifier Power | 150W total | 280W (LF) + 100W (HF) per speaker, bi-amped |
| Dimensions | 15.7”H x 7.9”W x 9.8”D (400 x 200 x 250 mm) | 12” x 7.9” x 12.2” (305 x 200 x 311 mm) each |
| Frequency Response | 39Hz - 35kHz ±10dB (47Hz - 21kHz ±3dB, Manufacturer specified) | 45Hz - 28kHz ±3dB |
| Maximum SPL | 117dB (manufacturer specified) | 108dB at 1m (manufacturer specified) |
| Spinorama Preference Score | 5.18 | 5.43 |
| Spinorama Preference Score with Perfect Sub | 7.13 | 7.51 |
| XLR Input | Yes | No |
| RCA Input | No | No |
| TRS Input | Yes | No |
| Optical Input | No | Yes |
| Coaxial Input | No | Yes |
| USB Input | No | No |
| HDMI Input | No | Yes |
| AES Input | Yes | No |
| Aux Input | No | Yes |
| Bluetooth Version | - | 4.2 |
| Subwoofer Output | - | Yes |
| Outputs | - | RCA subwoofer |
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 9, 2026 at 8:01 AM 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
Kali Audio SM-5: $2,998 per pair B&H Photo Video eBay
Pros: Erin’s measurements show bass reaching -3dB around 43Hz and a 2.8dB midrange response span. The coaxial mid/tweeter and large waveguide give useful consistency horizontally and vertically, reducing sensitivity to listening height. Built-in per-speaker DSP and mounting options make placement flexible. Existing testing reports low midrange distortion at 96dB. Measured bass extension of 45Hz (-3dB).
Cons: Scores of 5.18 standalone and 7.13 with an ideal subwoofer are good but below the leading reference monitors, so its advanced driver layout does not justify a near-top ranking by itself. A small upper-midrange irregularity remains. The five-inch woofer and limiter constrain loud bass; the review places compression onset roughly in the 96-102dB/1m region.
Full Kali Audio SM-5 review and specifications →
| AES Input | Yes |
|---|---|
| Amplifier Power | 150W total |
| App | Kali Audio DSP software (free download) |
| Aux Input | No |
| Bass Extension (-10dB) | 39Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 45Hz (measured, Erin’s Audio Corner) |
| Bluetooth | No |
| Coaxial Input | No |
| Dimensions | 15.7”H x 7.9”W x 9.8”D (400 x 200 x 250 mm) |
| Drivers | 1” coaxial tweeter, 4” coaxial midrange, 5” mid-bass woofer |
| EQ | Yes, per-speaker DSP |
| Frequency Response | 39Hz - 35kHz ±10dB (47Hz - 21kHz ±3dB, Manufacturer specified) |
| HDMI Input | No |
| Inputs | XLR/TRS, AES/EBU (BNC), RJ45 network control |
| Maximum SPL | 117dB (manufacturer specified) |
| Optical Input | No |
| RCA Input | No |
| Spinorama Preference Score | 5.18 |
| Spinorama Preference Score with Perfect Sub | 7.13 |
| TRS Input | Yes |
| USB Input | No |
| Weight | 20.9 lbs (9.5 kg) each |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Kali Audio SM-5 vs Kali Audio IN-5
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- Kali Audio SM-5 vs IK Multimedia iLoud MTM
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- Kali Audio SM-5 vs JBL 305P MKII
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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
- KEF LS50 Wireless II vs JBL 305P MKII
- 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 IN-5
- KEF LS50 Wireless II vs Devialet Phantom II 98 dB
- KEF LS50 Wireless II vs Genelec 8320A
- See all 46 comparisons