Short answer: the Genelec 8030C. It ranks #3 of 64 powered bookshelf speakers by sound quality at $1590; the KEF LS50 Wireless II ranks #16 and costs $2999, so there is not much of a tradeoff to weigh.
What the Genelec 8030C offers: CEA2034 spinorama shows a near-flat on-axis response with smooth directivity - “very nice overall.” Predicted in-room response is excellent aside from one minor dip. Reasonably wide horizontal beamwidth of about ±60 degrees that doesn’t narrow even above 10kHz. At 106dB SPL/1m, bass distortion measures much lower than a comparable passive speaker-plus-amplifier combination (Revel M106) tested the same way. Compression is purely instantaneous/amplitude-related rather than thermal, with max SPL before compression reaching 111dB SPL at 200Hz (96dB plus 15dB of headroom). The reviewer found it immediately musical, with reference tracks “translating” beautifully out of the box, and EQ correction of its one measured flaw improved detail with no downsides. Overall conclusion: excellent value, a rare combination of measured accuracy and genuinely engaging sound. Watch for: A minor but measurable dip between 2-3kHz shows up in both on- and off-axis measurements. Vertical directivity varies significantly with frequency, so listening height needs to stay right at the tweeter/ear axis for accurate tonal balance. Distortion at 106dB SPL/1m is elevated in the 500Hz-2kHz range compared to the Revel M106 comparison, even though bass distortion is much better. Compression headroom drops substantially at low frequencies - only about 105dB SPL max at 50Hz (a 0.5dB compression point) versus 111dB SPL at 200Hz, roughly a 6dB difference. As a near-field monitor, it has genuinely limited headroom in the deep bass - the reviewer noted severe distortion on deep-bass-heavy tracks at anything beyond modest listening levels.
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 (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. Watch for: 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.
Buy the Genelec 8030C. 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 8030C | KEF LS50 Wireless II | |
|---|---|---|
| Price | $1590 | $2,999.00 |
| Ranked | #3 of 64 in Medium Size Powered Bookshelf Speakers | #16 of 64 in Medium Size Powered Bookshelf Speakers |
| Bass Extension (-10dB) | 47Hz (measured, Audio Science Review) | 41.5Hz (measured, spinorama.org) |
| Bass Extension (-3dB) | 59Hz (measured, Audio Science Review) | 51.3Hz (measured, spinorama.org) |
| Dimensions | 11.7"H x 7.4"W x 7"D (297.2 x 188 x 177.8 mm) | 12" x 7.9" x 12.2" (305 x 200 x 311 mm) (12.0 x 7.9 x 12.2 in) each |
| Inputs | XLR | HDMI eARC, optical, digital coaxial, 3.5mm analog, USB-A (service), Ethernet, RCA subwoofer out |
| Weight | 11 lbs / 5 kg each | 44.3 lbs / 20.1 kg (44.3 lb) for the pair |
| Drivers | 5.1" woofer, 0.75" metal dome tweeter | Uni-Q coincident array: 130mm aluminum woofer + 25mm MAT aluminum dome tweeter |
| App | No | KEF Connect (placement EQ presets, source selection, firmware updates) |
| Bluetooth | No | Yes, 4.2 |
| EQ | Yes (Bass tilt, treble tilt, room response) | Yes, fixed placement presets (desk/bookshelf/wall-mount) - no automatic room correction |
| Frequency Response | 54Hz - 20kHz (±2.5dB) (Manufacturer specified) | 45Hz - 28kHz ±3dB |
| Max SPL | 110dB @ 1m | 108dB at 1m |
| Output Power | 100W (50W woofer + 50W tweeter) | 280W (LF) + 100W (HF) per speaker, bi-amped |
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The Two Speakers In Full
Genelec 8030C: $1590 Bhphotovideo eBay
Pros: CEA2034 spinorama shows a near-flat on-axis response with smooth directivity - “very nice overall.” Predicted in-room response is excellent aside from one minor dip. Reasonably wide horizontal beamwidth of about ±60 degrees that doesn’t narrow even above 10kHz. At 106dB SPL/1m, bass distortion measures much lower than a comparable passive speaker-plus-amplifier combination (Revel M106) tested the same way. Compression is purely instantaneous/amplitude-related rather than thermal, with max SPL before compression reaching 111dB SPL at 200Hz (96dB plus 15dB of headroom). The reviewer found it immediately musical, with reference tracks “translating” beautifully out of the box, and EQ correction of its one measured flaw improved detail with no downsides. Overall conclusion: excellent value, a rare combination of measured accuracy and genuinely engaging sound.
Cons: A minor but measurable dip between 2-3kHz shows up in both on- and off-axis measurements. Vertical directivity varies significantly with frequency, so listening height needs to stay right at the tweeter/ear axis for accurate tonal balance. Distortion at 106dB SPL/1m is elevated in the 500Hz-2kHz range compared to the Revel M106 comparison, even though bass distortion is much better. Compression headroom drops substantially at low frequencies - only about 105dB SPL max at 50Hz (a 0.5dB compression point) versus 111dB SPL at 200Hz, roughly a 6dB difference. As a near-field monitor, it has genuinely limited headroom in the deep bass - the reviewer noted severe distortion on deep-bass-heavy tracks at anything beyond modest listening levels.
Full Genelec 8030C review and specifications →
| App | No |
|---|---|
| Bass Extension (-10dB) | 47Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 59Hz (measured, Audio Science Review) |
| Bluetooth | No |
| Dimensions | 11.7"H x 7.4"W x 7"D (297.2 x 188 x 177.8 mm) |
| Drivers | 5.1" woofer, 0.75" metal dome tweeter |
| EQ | Yes (Bass tilt, treble tilt, room response) |
| Frequency Response | 54Hz - 20kHz (±2.5dB) (Manufacturer specified) |
| Inputs | XLR |
| Max SPL | 110dB @ 1m |
| Output Power | 100W (50W woofer + 50W tweeter) |
| Weight | 11 lbs / 5 kg each |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
KEF LS50 Wireless II: $2,999.00 Amazon KEF Crutchfield eBay
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 |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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