Short answer: the KEF LSX II LT. It ranks #35 of 100 powered bookshelf speakers by sound quality (rated 4.0/5) at $549.99 and is still sold new; the NHT Pro M-00 ranks #98 (rated 1.7/5) and is discontinued, so it is only an option used.
The KEF LSX II LT is the better-sounding, deeper-bass pick. The coincident driver provides useful consistency across listening positions, and the app offers placement and subwoofer adjustments. Its bass reaches about 55Hz before falling 3dB, against 83.3Hz for the NHT Pro M-00. The tradeoff: The 3.4dB midrange response span and treble-region dips keep it below more neutral monitors.
What the NHT Pro M-00 does well: A sturdy metal enclosure, analog studio/consumer connections and selectable nearfield/farfield voicing give it practical features as an older powered monitor. The catch: The review identifies a pronounced upper-bass cancellation, treble peaks and problematic vertical response, and strongly prefers the JBL 305P MKII in direct listening.
Buy the KEF LSX II LT. It is rated higher for sound quality; the NHT Pro M-00 is no longer sold new.
Looking for alternatives? See the complete Powered Home rankings.
Specifications Side By Side
| KEF LSX II LT | NHT Pro M-00 | |
|---|---|---|
| Price | $549.99 per pair | $498 per pair (used market; originally $249 each), Discontinued |
| Ranked | #35 of 100 in Medium Size Powered Bookshelf Speakers | #98 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) | 9H x 5.7W x 7.3D in |
| Inputs | Wifi, USB-C, HDMI, Optical, Bluetooth | RCA, XLR/TRS |
| Outputs | RCA Subwoofer | - |
| Drivers | 115mm (4.5in.) magnesium/aluminium alloy cone woofer, 19mm (0.75in.) aluminium dome tweeter | 1” ferrofluid-cooled fabric dome tweeter, 4.5” treated paper-cone woofer |
| Weight | 15 lbs (6.8 kg) | 14 lbs (6.35 kg) each |
| App | No | No |
| Bluetooth | Yes | No |
| EQ | No | - |
| Amplifier Power | 100w RMS Per Speaker | 75W RMS continuous, 150W peak (per speaker) |
| Bass Extension (-3dB) | 55Hz (measured, Erin’s Audio Corner) | 83.3Hz (measured, Audio Science Review) |
| Bass Extension (-10dB) | 46Hz (measured, Erin’s Audio Corner) | 59.7Hz (measured, Audio Science Review) |
| 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 | 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) | 98Hz - 20kHz (Manufacturer specified) |
| DSP | - | No |
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Prices on this page were last checked October 7, 2026 at 9:25 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: $549.99 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
NHT Pro M-00: $498 per pair (used market; originally $249 each) Discontinued eBay
Pros: A sturdy metal enclosure, analog studio/consumer connections and selectable nearfield/farfield voicing give it practical features as an older powered monitor. Measured bass extension of 83.3Hz (-3dB).
Cons: The review identifies a pronounced upper-bass cancellation, treble peaks and problematic vertical response, and strongly prefers the JBL 305P MKII in direct listening. Discontinued.
Full NHT Pro M-00 review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 75W RMS continuous, 150W peak (per speaker) |
| App | No |
| Aux Input | No |
| Bass Extension (-10dB) | 59.7Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 83.3Hz (measured, Audio Science Review) |
| Bluetooth | No |
| Coaxial Input | No |
| DSP | No |
| Dimensions | 9H x 5.7W x 7.3D in |
| Drivers | 1” ferrofluid-cooled fabric dome tweeter, 4.5” treated paper-cone woofer |
| Frequency Response | 98Hz - 20kHz (Manufacturer specified) |
| HDMI Input | No |
| Inputs | RCA, XLR/TRS |
| Optical Input | No |
| RCA Input | Yes |
| TRS Input | Yes |
| USB Input | No |
| Weight | 14 lbs (6.35 kg) each |
| XLR Input | Yes |
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons