Short answer: the Mackie MR524. Both are rated 4.0/5 for sound quality (#32 and #35 of 100 powered bookshelf speakers), and the Mackie MR524 costs $379.98 against $699.99 for the KEF LSX II LT, with sound quality a draw, the lower price decides it.
What the KEF LSX II LT does well: 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 Mackie MR524 is the deeper-bass pick. The available third-party data suggests a useful combination of bass reach and midrange balance: -3dB around 46Hz, a 2.0dB midrange span, and preference estimates of 5.11 standalone and 7.06 with an ideal subwoofer. Its bass reaches about 46.2Hz before falling 3dB, against 55Hz for the KEF LSX II LT. The tradeoff: The measured response trends upward toward the treble by about 0.47dB per octave, which can lend a brighter balance.
Buy the Mackie MR524. Both are rated the same for sound quality, and it costs $320.01 less than the KEF LSX II LT.
Still deciding? The full Powered Home rankings cover every ranked option.
Specifications Side By Side
| KEF LSX II LT | Mackie MR524 | |
|---|---|---|
| Price | $699.99 per pair | $379.98 per pair |
| Ranked | #35 of 100 in Medium Size Powered Bookshelf Speakers | #32 of 100 in Medium Size Powered Bookshelf Speakers |
| Dimensions | 9.5”H x 6.1”W x 7.1”D (241.3 x 154.9 x 180.3 mm) | 11.1” x 7.1” x 8.7” (281 x 180 x 221 mm) (H x W x D) |
| Inputs | Wifi, USB-C, HDMI, Optical, Bluetooth | Balanced XLR, balanced TRS, RCA |
| Outputs | RCA Subwoofer | - |
| Drivers | 115mm (4.5in.) magnesium/aluminium alloy cone woofer, 19mm (0.75in.) aluminium dome tweeter | 5-inch polypropylene woofer; 1-inch silk-dome tweeter |
| Weight | 15 lbs (6.8 kg) | 10.1 lbs (4.6 kg) |
| App | No | - |
| Bluetooth | Yes | No |
| EQ | No | - |
| Amplifier Power | 100w RMS Per Speaker | 50W bi-amplified per speaker |
| Bass Extension (-3dB) | 55Hz (measured, Erin’s Audio Corner) | 46.2Hz (measured, spinorama.org) |
| Bass Extension (-10dB) | 46Hz (measured, Erin’s Audio Corner) | approximately 38Hz (measured, spinorama.org) |
| Sensitivity | 84dB (measured at 0.3V/1m, Erin’s Audio Corner) | - |
| Spinorama Preference Score | 4.81 | 5.11 |
| Spinorama Preference Score with Perfect Sub | 7.03 | 7.06 |
| Subwoofer Output | Yes | - |
| XLR Input | No | Yes |
| RCA Input | No | Yes |
| TRS Input | No | Yes |
| 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) | 45Hz-20kHz |
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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
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 →
| 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
Mackie MR524: $379.98 per pair B&H Photo Video eBay
Same family: the Mackie MR624 (larger bookshelf, estimated 4/5) and the Mackie MR824 (larger bookshelf, estimated 4/5).
Pros: The available third-party data suggests a useful combination of bass reach and midrange balance: -3dB around 46Hz, a 2.0dB midrange span, and preference estimates of 5.11 standalone and 7.06 with an ideal subwoofer. Balanced inputs, boundary compensation and treble trim are practical studio features. Measured bass extension of 46.2Hz (-3dB).
Cons: The measured response trends upward toward the treble by about 0.47dB per octave, which can lend a brighter balance. Boundary compensation and treble trim help with setup but are less flexible than parametric correction.
Full Mackie MR524 review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 50W bi-amplified per speaker |
| Aux Input | No |
| Bass Extension (-10dB) | approximately 38Hz (measured, spinorama.org) |
| Bass Extension (-3dB) | 46.2Hz (measured, spinorama.org) |
| Bluetooth | No |
| Coaxial Input | No |
| Dimensions | 11.1” x 7.1” x 8.7” (281 x 180 x 221 mm) (H x W x D) |
| Drivers | 5-inch polypropylene woofer; 1-inch silk-dome tweeter |
| Frequency Response | 45Hz-20kHz |
| HDMI Input | No |
| Inputs | Balanced XLR, balanced TRS, RCA |
| Optical Input | No |
| RCA Input | Yes |
| Spinorama Preference Score | 5.11 |
| Spinorama Preference Score with Perfect Sub | 7.06 |
| TRS Input | Yes |
| USB Input | No |
| Weight | 10.1 lbs (4.6 kg) |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons