Short answer: the Genelec 8320A. It ranks #10 of 48 powered bookshelf speakers by sound quality at $850; the KEF LS50 Wireless II ranks #16 and costs $2749.99, so there is not much of a tradeoff to weigh.
On the Genelec 8320A side: The Directivity Control Waveguide and die cast aluminum Minimum Diffraction Enclosure produce a listening window smoothness score of 0.53 and a low frequency alignment Q of just 0.227, the cleanest, least resonant bass rolloff of any speaker in this whole batch. Set against that: On axis deviation measures 0.169dB average, decent but not class leading next to the AsciLab and Audio Smile entries in this batch.
What the KEF LS50 Wireless II offers: Uni-Q coincident driver array (130mm aluminum woofer with a 25mm MAT dome tweeter mounted at its acoustic center) gives excellent, consistent off-axis dispersion, measuring the tightest directivity spread of this batch alongside a smooth listening-window response. The tradeoff: Primary/Secondary architecture means one speaker handles every input while the other depends on a wireless or wired Ethernet link back to it - placement is less flexible than a fully symmetric pair.
Buy the Genelec 8320A. It ranks higher for sound quality than the KEF LS50 Wireless II and costs less, so there is no real case for the other one.
Specifications Side By Side
| Genelec 8320A | KEF LS50 Wireless II | |
|---|---|---|
| Price | $850 each | $2,749.99 |
| Ranked | #10 of 48 in Medium Size Powered Bookshelf Speakers | #16 of 48 in Medium Size Powered Bookshelf Speakers |
| Enclosure | ported | - |
| Drivers | 0.75" metal dome tweeter, 4.1" cone woofer | Uni-Q coincident array: 130mm aluminum woofer + 25mm MAT aluminum dome tweeter |
| Dimensions | 9.5"H x 5.9"W x 5.6"D (242 x 151 x 142 mm) (9.5 x 5.9 x 5.6 in) | 12" x 7.9" x 12.2" (305 x 200 x 311 mm) (12.0 x 7.9 x 12.2 in) each |
| Weight | 7.1 lbs / 3.2 kg (7.1 lbs) each | 44.3 lbs / 20.1 kg (44.3 lb) for the pair |
| Power Output (Watts) | 100W total (50W woofer, 50W tweeter, Class D) | - |
| Frequency Response | 55Hz-23kHz -6dB | 45Hz - 28kHz ±3dB |
| Bass Extension (-3dB) | 67.4Hz (measured, Audio Science Review) | 51.3Hz (measured, spinorama.org) |
| Bass Extension (-10dB) | 53.2Hz (measured, Audio Science Review) | 41.5Hz (measured, spinorama.org) |
| Max SPL | Peak 107dB | 108dB at 1m |
| Warranty | 2 years (5 with product registration) | - |
| Country | Finland | - |
| Inputs | - | HDMI eARC, optical, digital coaxial, 3.5mm analog, USB-A (service), Ethernet, RCA subwoofer out |
| App | - | KEF Connect (placement EQ presets, source selection, firmware updates) |
| Bluetooth | - | Yes, 4.2 |
| EQ | - | Yes, fixed placement presets (desk/bookshelf/wall-mount) - no automatic room correction |
| Output Power | - | 280W (LF) + 100W (HF) per speaker, bi-amped |
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The Two Speakers In Full
Genelec 8320A: $850 each Bhphotovideo
Pros: The Directivity Control Waveguide and die cast aluminum Minimum Diffraction Enclosure produce a listening window smoothness score of 0.53 and a low frequency alignment Q of just 0.227, the cleanest, least resonant bass rolloff of any speaker in this whole batch. It network calibrates through Genelec’s GLM software for automatic room correction, and Intelligent Signal Sensing drops standby power to under 0.5W.
Cons: On axis deviation measures 0.169dB average, decent but not class leading next to the AsciLab and Audio Smile entries in this batch. The compact 4.1 inch woofer limits low frequency extension to a measured 67.4Hz at -3dB, so a subwoofer is needed for full range use. The GLM calibration kit that unlocks its room correction features is sold separately from the speaker price, and max SPL tops out around 100dB, modest next to Genelec’s larger 8000 series monitors.
Full Genelec 8320A review and specifications →
| Bass Extension (-10dB) | 53.2Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 67.4Hz (measured, Audio Science Review) |
| Country | Finland |
| Dimensions | 9.5"H x 5.9"W x 5.6"D (242 x 151 x 142 mm) (9.5 x 5.9 x 5.6 in) |
| Drivers | 0.75" metal dome tweeter, 4.1" cone woofer |
| Enclosure | ported |
| Frequency Response | 55Hz-23kHz -6dB |
| Max SPL | Peak 107dB |
| Power Output (Watts) | 100W total (50W woofer, 50W tweeter, Class D) |
| Warranty | 2 years (5 with product registration) |
| Weight | 7.1 lbs / 3.2 kg (7.1 lbs) each |
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KEF LS50 Wireless II: $2,749.99 Amazon KEF Crutchfield
Pros: Uni-Q coincident driver array (130mm aluminum woofer with a 25mm MAT dome tweeter mounted at its acoustic center) gives excellent, consistent off-axis dispersion, measuring the tightest directivity spread of this batch (directivity_spdi_stddev 3.96) alongside a smooth listening-window response (smoothness_listening_window 0.375, aad_on_axis 0.343). Bass extends to a genuinely deep 51.3Hz at -3dB / 41.5Hz at -10dB for a compact standmount, backed by a bi-amped 280W (LF) + 100W (HF) design. One of the most complete input sets in its class: HDMI eARC, optical, coaxial, RCA, Ethernet, AirPlay 2, Chromecast, Roon Ready, and Spotify/Tidal Connect, so it can replace a full receiver-based setup for TV, turntable, and streaming use.
Cons: Primary/Secondary architecture means one speaker handles every input while the other depends on a wireless or wired Ethernet link back to it - placement is less flexible than a fully symmetric pair. No mic-based automatic room correction, only fixed placement EQ presets in the KEF Connect app. Bass alignment Q (lfq 0.676) sits toward the higher end of typical ported values. At $2,999.99/pair it’s roughly double the price of KEF’s own smaller LSX II.
Full KEF LS50 Wireless II review and specifications →
| 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) (12.0 x 7.9 x 12.2 in) 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, RCA subwoofer out |
| Max SPL | 108dB at 1m |
| Output Power | 280W (LF) + 100W (HF) per speaker, bi-amped |
| Weight | 44.3 lbs / 20.1 kg (44.3 lb) for the pair |
As an eBay Partner, we may be compensated if you make a purchase.
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