Short answer: the KEF LS50 Wireless II. It ranks #19 of 108 powered bookshelf speakers by sound quality, rated 4.3/5, at $2,999.99. The Audioengine HD6 ranks #79, rated 3.3/5, at $1,048, $1,951.99 cheaper, a saving that is not big enough to make up the sound-quality gap.
The KEF LS50 Wireless II is the better-sounding option. An all in one wireless stereo system with accurate, consistent sound, HDMI eARC and built in streaming. It has an adjustable EQ, which the Audioengine HD6 lacks. The tradeoff: The 3.0dB response span is good but not reference-leading, and dispersion still varies with frequency.
The case for the Audioengine HD6: A self-contained powered stereo pair with Bluetooth, analog and optical inputs, and an RCA output, no separate amplifier needed. The catch: Listening impressions describe bass and treble emphasis with a recessed midrange, which may suit casual listening better than neutral monitoring.
Buy the KEF LS50 Wireless II. It is rated higher for sound quality, and saving $1,951.99 with the Audioengine HD6 does not make up for the sound-quality gap.
Still deciding? The full Powered Home rankings cover every ranked option.
An all in one wireless stereo system with accurate, consistent sound, HDMI eARC and built in streaming.
A self-contained powered stereo pair with Bluetooth, analog and optical inputs, and an RCA output, no separate amplifier needed.
Prices on this page were last checked October 31, 2026 at 7:11 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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Specifications Side By Side
| KEF LS50 Wireless II | Audioengine HD6 | |
|---|---|---|
| Price | $2,999.99 per pair | $1,048.00 per pair |
| Ranked | #19 of 108 in Medium Size Powered Bookshelf Speakers | #79 of 108 in Medium Size Powered Bookshelf Speakers |
| Bass Extension (-10dB) | 41.5Hz (measured, spinorama.org) | - |
| Bass Extension (-3dB) | 51.3Hz (measured, spinorama.org) | - |
| Inputs | HDMI eARC, optical, digital coaxial, 3.5mm analog, USB-A (service), Ethernet | Bluetooth, Aux, RCA Input, Digital Optical |
| Drivers | Uni-Q coincident array: 130mm aluminum woofer + 25mm MAT aluminum dome tweeter | 5.5” (140mm) woofer |
| App | KEF Connect (placement EQ presets, source selection, firmware updates) | No |
| Bluetooth | Yes | Yes |
| Bluetooth Version | 4.2 | 5.0 |
| EQ | Yes, fixed placement presets (desk/bookshelf/wall-mount) - no automatic room correction | No |
| Weight | 44.3 lbs (20.1 kg) for the pair | 17.4 lbs (7.9 kg) |
| Amplifier Power | 280W (LF) + 100W (HF) per speaker, bi-amped | 50w RMS Per Speaker |
| Dimensions | 12” x 7.9” x 12.2” (305 x 200 x 311 mm) each | 11.7”H x 7.2”W x 10”D (298.4 x 184.1 x 254 mm) |
| Frequency Response | 45Hz - 28kHz ±3dB | 45Hz-40kHz (-3dB) (Manufacturer specified) |
| Maximum SPL | 108dB at 1m (manufacturer specified) | - |
| Spinorama Preference Score | 5.43 | - |
| Spinorama Preference Score with Perfect Sub | 7.51 | - |
| Subwoofer Output | Yes | Yes |
| Outputs | RCA subwoofer | RCA variable output (subwoofer) |
| XLR Input | No | No |
| RCA Input | No | Yes |
| TRS Input | No | No |
| Optical Input | Yes | Yes |
| Coaxial Input | Yes | No |
| USB Input | No | No |
| HDMI Input | Yes | No |
| AES Input | No | No |
| Aux Input | Yes | Yes |
| Bluetooth Codecs | - | SBC, AAC, aptX, aptX HD |
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