Short answer: the Edifier R1280T for a forgiving normal-volume desktop, the KEF LSX II LT for wide dispersion. The R1280T handled a demanding bass-heavy track in ASR’s Klippel measurements without bottoming out or audible distortion, staying inaudible at a normal 86dB SPL, but its on-axis response is jagged with a woofer resonance around 5kHz and a tweeter peak near 10kHz. The LSX II LT spreads about +/-60 degrees each way but is SPL-limited around 88-92dB/1m.
On the KEF LSX II LT side: Coaxial (Uni-Q-style) driver keeps the tweeter centered in the midrange, giving wide and consistent dispersion both horizontally and vertically (about ±60° each) - a wide sweet spot for multiple seats or positions. Set against that: Small drivers mean it’s SPL-limited: bass compression kicks in around 88-92dB/1m per speaker, and multitone distortion crosses the reviewer’s 3% threshold around 96dB - not intended for loud or large-room duty.
Buy the KEF LSX II LT. It is rated higher for sound quality, and the $330 saving on the Edifier R1280T is not enough to make up the difference.
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Specifications Side By Side
| KEF LSX II LT | Edifier R1280T | |
|---|---|---|
| Price | $479.99 per pair | $149.99 per pair |
| Ranked | #27 of 68 in Medium Size Powered Bookshelf Speakers | #62 of 68 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) | 9.2”H x 7.7”W x 5.7”D (234 x 196 x 146 mm) |
| Inputs | Wifi, USB-C, HDMI, Optical, Bluetooth | 2x RCA Input |
| Outputs | RCA Subwoofer | None |
| Drivers | 115mm (4.5in.) magnesium/aluminium alloy cone woofer, 19mm (0.75in.) aluminium dome tweeter | 4” (102mm) woofer |
| Weight | 15 lbs (6.8 kg) | 10.8 lbs (4.9 kg) |
| App | No | No |
| Bluetooth | Yes | No |
| EQ | No | No |
| Amplifier Power | 100w RMS Per Speaker | 42w RMS Total |
| Bass Extension (-3dB) | 55Hz (measured, Erin’s Audio Corner) | 63Hz (measured, Audio Science Review) |
| Bass Extension (-10dB) | 46Hz (measured, Erin’s Audio Corner) | 53.2Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) |
| Sensitivity | 84dB (measured at 0.3V/1m, Erin’s Audio Corner) | - |
| Spinorama Preference Score | 4.81 | 2.41 |
| Spinorama Preference Score with Perfect Sub | 7.03 | 5.02 |
| Subwoofer Output | Yes | - |
| XLR Input | No | No |
| 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) | 52Hz - 20kHz (Manufacturer specified) |
Related Speaker Comparisons
How KEF LSX II LT compares with other leading options:
- KEF LSX II LT vs Genelec 8331A
- KEF LSX II LT vs Neumann KH120 MKII
- Genelec 8030C vs KEF LSX II LT
- KEF LSX II LT vs Neumann KH80 DSP
- KEF LSX II LT vs Reflector Audio Square Two
Prices on this page were last checked October 2, 2026 at 10:18 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: $479.99 per pair Amazon eBay
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
Edifier R1280T: $149.99 per pair Amazon eBay
Pros: ASR’s review found useful moderate-level bass output from an inexpensive powered pair. Remote volume and bass/treble controls make it easy to use without separate amplification. Measured bass reaches -3dB around 63Hz. Measured bass extension of 63Hz (-3dB).
Cons: Preference scores of 2.41 standalone and 5.02 with an ideal subwoofer reflect substantial tonal limitations, not just missing bass. The response spans 5.5dB from 300Hz to 5kHz, and listening-window narrow-band deviation is 0.650. Resonances and treble unevenness affect reflected sound too. Listening height is important, and high-level compression changes the balance.
Full Edifier R1280T review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 42w RMS Total |
| App | No |
| Aux Input | No |
| Bass Extension (-10dB) | 53.2Hz (derived, log-interpolated between spinorama.org -9dB/-12dB points) |
| Bass Extension (-3dB) | 63Hz (measured, Audio Science Review) |
| Bluetooth | No |
| Coaxial Input | No |
| Dimensions | 9.2”H x 7.7”W x 5.7”D (234 x 196 x 146 mm) |
| Drivers | 4” (102mm) woofer |
| EQ | No |
| Frequency Response | 52Hz - 20kHz (Manufacturer specified) |
| HDMI Input | No |
| Inputs | 2x RCA Input |
| Optical Input | No |
| Outputs | None |
| RCA Input | Yes |
| Spinorama Preference Score | 2.41 |
| Spinorama Preference Score with Perfect Sub | 5.02 |
| TRS Input | No |
| USB Input | No |
| Weight | 10.8 lbs (4.9 kg) |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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