Short answer: the KEF LSX II LT. It ranks #36 of 105 powered bookshelf speakers by sound quality, rated 4.0/5, at $699.99; the ADAM Audio A44H ranks #54, rated 3.8/5, and costs $1,459.98, so there is not much of a tradeoff to weigh.
Why pick the KEF LSX II LT: The coincident driver provides useful consistency across listening positions, and the app offers placement and subwoofer adjustments. The tradeoff: The 3.4dB midrange response span and treble-region dips keep it below more neutral monitors.
The case for the ADAM Audio A44H: A horizontal A Series monitor with two 4” mineral-composite woofers flanking the X-ART folded-ribbon tweeter in a rotatable HPS waveguide, driven by 130W. The tradeoff: No independent measurements yet, so its tonal balance and directivity can’t be compared directly with measured speakers; the rating is estimated from the measured ADAM Audio A4V and ADAM Audio A7V.
Buy the KEF LSX II LT. It is rated higher for sound quality than the ADAM Audio A44H and costs less, so it is the default pick unless a specific strength of the other one matters more to you.
About the ratings: the ADAM Audio A44H’s rating is estimated from measured siblings and predecessors rather than its own measurements, with a likely range of 3.4 to 4.1, so this verdict could change once it is measured.
Still deciding? The full Powered Home rankings cover every ranked option.
Specifications Side By Side
| KEF LSX II LT | ADAM Audio A44H | |
|---|---|---|
| Price | $699.99 per pair | $1,459.98 per pair |
| Ranked | #36 of 105 in Medium Size Powered Bookshelf Speakers | #54 of 105 in Medium Size Powered Bookshelf Speakers Estimated |
| Dimensions | 9.5”H x 6.1”W x 7.1”D (241.3 x 154.9 x 180.3 mm) | 5.3” (135 mm) H x 432mm W x 350mm D |
| Inputs | Wifi, USB-C, HDMI, Optical, Bluetooth | XLR, RCA |
| Outputs | RCA Subwoofer | - |
| Drivers | 115mm (4.5in.) magnesium/aluminium alloy cone woofer, 19mm (0.75in.) aluminium dome tweeter | 2x 4” Multi-Layer Mineral woofers, X-ART tweeter in rotatable HPS waveguide |
| Weight | 15 lbs (6.8 kg) | 21.4 lbs (9.7 kg) each |
| App | No | - |
| Bluetooth | Yes | No |
| EQ | No | - |
| Amplifier Power | 100w RMS Per Speaker | 130W (110W woofers + 20W tweeter) |
| Bass Extension (-3dB) | 55Hz (measured, Erin’s Audio Corner) | - |
| Bass Extension (-10dB) | 46Hz (measured, Erin’s Audio Corner) | - |
| 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 | - |
| XLR Input | No | Yes |
| RCA Input | No | Yes |
| TRS Input | No | No |
| Optical Input | Yes | No |
| Coaxial Input | No | No |
| USB Input | Yes | No |
| HDMI Input | Yes | No |
| AES Input | No | No |
| Aux Input | No | No |
| Frequency Response | 54Hz - 28kHz (±3dB) (Manufacturer specified) | 49Hz - 41kHz (-3dB, manufacturer specified) |
| Maximum SPL | - | 103dB @ 1m (manufacturer specified) |
| DSP | - | Yes (room adaptation EQ, SoundID Reference support) |
Related Speaker Comparisons
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Prices on this page were last checked October 11, 2026 at 4:59 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: $699.99 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 →
| Released | Jan 2024 (2 years ago) |
|---|---|
| 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
ADAM Audio A44H: $1,459.98 per pair Estimated B&H Photo Video eBay
Same family: the ADAM Audio A4V (smaller bookshelf, ranked lower, rated 3.6/5), the ADAM Audio A7V (larger bookshelf, rated 4/5), the ADAM Audio A8H (larger bookshelf, estimated 4.4/5) and the ADAM Audio A77H (larger bookshelf, estimated 4.4/5). See every ADAM Audio A Series generation.
Pros: A horizontal A Series monitor with two 4” mineral-composite woofers flanking the X-ART folded-ribbon tweeter in a rotatable HPS waveguide, driven by 130W. Lying flat it fits under a screen or on a rack shelf and doubles as a center channel in surround or immersive setups. ADAM specifies 49Hz to 41kHz (-3dB), and DSP room adaptation, Sonarworks SoundID support and network control via ADAM’s software let you tune it to the room.
Cons: No independent measurements yet, so its tonal balance and directivity can’t be compared directly with measured speakers; the rating is estimated from the measured ADAM Audio A4V and ADAM Audio A7V. Horizontal two-way speakers usually have less even horizontal dispersion than vertical ones, since the woofers sit side by side, and bass stops near 49Hz, so a subwoofer still helps.
Full ADAM Audio A44H review and specifications →
| Released | May 2022 (4 years ago) |
|---|---|
| AES Input | No |
| Amplifier Power | 130W (110W woofers + 20W tweeter) |
| Aux Input | No |
| Bluetooth | No |
| Coaxial Input | No |
| DSP | Yes (room adaptation EQ, SoundID Reference support) |
| Dimensions | 5.3” (135 mm) H x 432mm W x 350mm D |
| Drivers | 2x 4” Multi-Layer Mineral woofers, X-ART tweeter in rotatable HPS waveguide |
| Frequency Response | 49Hz - 41kHz (-3dB, manufacturer specified) |
| HDMI Input | No |
| Inputs | XLR, RCA |
| Maximum SPL | 103dB @ 1m (manufacturer specified) |
| Optical Input | No |
| RCA Input | Yes |
| TRS Input | No |
| USB Input | No |
| Weight | 21.4 lbs (9.7 kg) each |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- No independent measurement review is linked for this model; it is ranked from hands-on listening and comparison against similarly priced speakers.
- Head-to-Head Comparisons