Short answer: the Presonus Eris E5 XT. It ranks #19 of 48 powered bookshelf speakers by sound quality at $119.99; the KEF LSX II LT ranks #25 and costs $600, so there is not much of a tradeoff to weigh.
On the Presonus Eris E5 XT side: CEA2034 spinorama shows very smooth, consistent directivity through the crossover region and into the treble, with early reflections tracking the on-axis curve closely. Watch for: On-axis response is uneven, with peaks at both frequency extremes and a dip around the roughly 3kHz crossover, giving a bass-and-treble-heavy tonal balance with the midrange partially recessed.
What the KEF LSX II LT offers: 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. The tradeoff: 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 Presonus Eris E5 XT. It ranks higher for sound quality than the KEF LSX II LT and costs less, so there is no real case for the other one.
Specifications Side By Side
| Presonus Eris E5 XT | KEF LSX II LT | |
|---|---|---|
| Price | $119.99 | $600.00 |
| Ranked | #19 of 48 in Medium Size Powered Bookshelf Speakers | #25 of 48 in Medium Size Powered Bookshelf Speakers |
| Bass Extension (-3dB) | 85Hz (measured, Audio Science Review) | 55Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 65Hz (measured, Audio Science Review) | 46Hz (measured, Erin’s Audio Corner) |
| Dimensions | 10.2"H x 7"W x 7.7"D (259.1 x 177.8 x 195.6 mm) | 9.5"H x 6.1"W x 7.1"D (241.3 x 154.9 x 180.3 mm) |
| Frequency Response | 53Hz - 22kHz (Manufacturer specified) | - |
| Inputs | TRS, XLR, RCA | Wifi, USB-C, HDMI, Optical, Bluetooth |
| Weight | 10.1 lbs / 4.6 kg each | 15 lbs / 6.8 kg |
| Drivers | 5" (127mm) woofer | 115mm (4.5in.) magnesium/aluminium alloy cone woofer, 19mm (0.75in.) aluminium dome tweeter |
| App | No | No |
| Bluetooth | No | No |
| EQ | Yes (Room adjustment) | No |
| Output Power | 80w Per Speaker | 100w RMS Per Speaker |
| Outputs | - | RCA Subwoofer |
| Sensitivity | - | 84dB (measured at 0.3V/1m, Erin’s Audio Corner) |
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More useful head-to-heads from the same speaker class:
- Edifier S1000W vs Presonus Eris E5
- Neumann KH80 DSP vs Presonus Eris E5
- Edifier S2000MKIII vs Presonus Eris E5
- KEF LSX II LT vs Edifier R1280T
- KEF LSX II LT vs Presonus Eris E5
The Two Speakers In Full
Presonus Eris E5 XT: $119.99 Amazon
Pros: CEA2034 spinorama shows very smooth, consistent directivity through the crossover region and into the treble, with early reflections tracking the on-axis curve closely.
Cons: On-axis response is uneven, with peaks at both frequency extremes and a dip around the roughly 3kHz crossover, giving a bass-and-treble-heavy tonal balance with the midrange partially recessed. Because directivity is otherwise good, room reflections closely mirror that same imbalance rather than smoothing it out. At 96dB SPL distortion spans a wide range of frequencies, and while dropping to 86dB helps, the woofer or its amplifier remains the weak link.
Full Presonus Eris E5 XT review and specifications →
| App | No |
|---|---|
| Bass Extension (-10dB) | 65Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 85Hz (measured, Audio Science Review) |
| Bluetooth | No |
| Dimensions | 10.2"H x 7"W x 7.7"D (259.1 x 177.8 x 195.6 mm) |
| Drivers | 5" (127mm) woofer |
| EQ | Yes (Room adjustment) |
| Frequency Response | 53Hz - 22kHz (Manufacturer specified) |
| Inputs | TRS, XLR, RCA |
| Output Power | 80w Per Speaker |
| Weight | 10.1 lbs / 4.6 kg each |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- DSAUDIO.review: New PreSonus E5 XT and Yamaha HS5 could not sound any more different! SOUND AND RESPONSE COMPARISON
- DSAUDIO.review: Bright and brighter. PreSonus E5 XT takes on Adam Audio T5V SOUND & FREQUENCY RESPONSE COMPARISON
- DSAUDIO.review: PreSonus Eris E5 XT vs PreSonus Eris E5 (new vs old) Sound & Frequency Response Comparison
- DSAUDIO.review: PreSonus E7 XT vs PreSonus E5 XT Sound & Frequency Response Comparison
- DSAUDIO.review: PreSonus Eris E8 XT vs PreSonus Eris E5 XT Sound & Frequency Response Comparison
- DSAUDIO.review: PreSonus E5 XT vs KRK Rokit 5 G4 Sound & Frequency Response Comparison
- Audio Science Review Measurements
- Audio Science Review Measurements (spinorama.org)
- Reddit Search for Presonus Eris E5 XT Review
- Head-to-Head Comparisons
- Presonus Eris E5 XT vs IK Multimedia iLoud MTM MKII
- Presonus Eris E5 XT vs KRK Rokit 5 G4
- Presonus Eris E5 XT vs IK Multimedia iLoud MTM
- Presonus Eris E5 XT vs Edifier Airpulse A100
- Presonus Eris E5 XT vs KEF LS50 Wireless II
- Presonus Eris E5 XT vs JBL 705P
- Presonus Eris E5 XT vs Kali Audio IN-5
- Presonus Eris E5 XT vs Presonus Eris E5
- See all 19 comparisons
KEF LSX II LT: $600.00 Amazon
Pros: 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. The KEF Connect app provides genuinely useful DSP control: desk/wall boundary compensation, adjustable bass contour (standard/less/extra), treble trim, and subwoofer integration, letting you tune the sound to wherever it’s placed. Distortion at a moderate 86dB looks good for the speaker’s compact size. Tonal profile stays consistent from 0° to 30° off-axis, so side-seat listeners hear essentially the same balance as someone centered. Extensive connectivity for its size: HDMI, USB, optical, sub output, plus Wi-Fi/Bluetooth. Clearly outperformed the reviewer’s soundbars, including ones bundled with their own subwoofers, as a TV audio replacement.
Cons: 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. F3 of 55Hz and F10 of 46Hz mean it loses much of its bass by around 50Hz; a subwoofer (controllable through the same app) is needed for real low end. Diffraction dips appear around 4-5kHz and again near 8kHz, likely tied to the tweeter housing or surround, giving a mild reduction in treble attack and sibilance. A possible port or enclosure resonance shows up around 800Hz in the rear-radiation measurements, though the reviewer wasn’t certain of the exact cause or whether it’s audible. No analog input on this LT variant, so a turntable can’t be connected directly - only the pricier standard LSX II model includes one.
Full KEF LSX II LT review and specifications →
| App | No |
|---|---|
| Bass Extension (-10dB) | 46Hz (measured, Erin's Audio Corner) |
| Bass Extension (-3dB) | 55Hz (measured, Erin's Audio Corner) |
| Bluetooth | 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 |
| Inputs | Wifi, USB-C, HDMI, Optical, Bluetooth |
| Output Power | 100w RMS Per Speaker |
| Outputs | RCA Subwoofer |
| Sensitivity | 84dB (measured at 0.3V/1m, Erin's Audio Corner) |
| Weight | 15 lbs / 6.8 kg |
As an eBay Partner, we may be compensated if you make a purchase.
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- KEF LSX II LT vs Presonus Eris E5
- KEF LSX II LT vs KRK Classic 5
- KEF LSX II LT vs JBL 705P
- KEF LSX II LT vs Edifier MR4
- KEF LSX II LT vs IK Multimedia iLoud MTM
- KEF LSX II LT vs Vanatoo Transparent One Encore Plus
- KEF LSX II LT vs IK Multimedia iLoud MTM MKII
- KEF LSX II LT vs Topping MA4
- See all 27 comparisons