Short answer: the HEDD Type 05 A-CORE for better sound quality, the KEF LSX II LT for the lower price. The HEDD Type 05 A-CORE ranks #23 of 64 powered bookshelf speakers at $699. The KEF LSX II LT ranks #27 at $469.99, $229.01 cheaper.
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 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. Watch for: 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.
What the HEDD Type 05 A-CORE offers: AMT (Air Motion Transformer) tweeter paired with a 5” Honeycomb-compound woofer, hand-assembled and individually tested in Berlin. Pure-analog signal path with no ADC/DAC or DSP dependency, so there’s zero digital latency and no firmware to keep updated. Deepest measured bass extension relative to size in this whole batch: 43.9Hz at -3dB / 37.1Hz at -10dB. Bi-amped 200W total (2x100W ICEpower Class D). 5-year warranty after registration. Watch for: On-axis deviation is the roughest of this batch (aad_on_axis 0.658), and both nbd_on_axis (0.456) and nbd_listening_window (0.404) trail most other speakers added here - a comparatively less linear response than its stablemates. The analog-only design means no room-correction DSP or digital I/O, a deliberate tradeoff versus HEDD’s pricier DSP-based Type 05 MK2 sibling. Sold individually at $714/unit ($1,428/pair).
Buy the KEF LSX II LT if the price matters more than sound quality. Buy the HEDD Type 05 A-CORE if sound quality matters more than the price.
Specifications Side By Side
| KEF LSX II LT | HEDD Type 05 A-CORE | |
|---|---|---|
| Price | $469.99 | $699 |
| Ranked | #27 of 64 in Medium Size Powered Bookshelf Speakers | #23 of 64 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) | 12.1" x 7.1" x 9.6" (308 x 180 x 245 mm) (12.1 x 7.1 x 9.7 in) each |
| Inputs | Wifi, USB-C, HDMI, Optical, Bluetooth | RCA unbalanced, XLR/TRS combo balanced |
| Outputs | RCA Subwoofer | - |
| Drivers | 115mm (4.5in.) magnesium/aluminium alloy cone woofer, 19mm (0.75in.) aluminium dome tweeter | AMT (Air Motion Transformer) tweeter, 5" Honeycomb-compound woofer |
| Weight | 15 lbs / 6.8 kg | 13.7 lbs / 6.2 kg (13.7 lb) each |
| App | No | None (analog-only, no DSP) |
| Bluetooth | No | No |
| EQ | No | Yes, analog High/Low shelving, ±6dB continuous |
| Output Power | 100w RMS Per Speaker | 200W total, bi-amped (2x100W ICEpower Class D) |
| Bass Extension (-3dB) | 55Hz (measured, Erin’s Audio Corner) | 43.9Hz (measured, spinorama.org) |
| Bass Extension (-10dB) | 46Hz (measured, Erin’s Audio Corner) | 37.1Hz (measured, spinorama.org) |
| Sensitivity | 84dB (measured at 0.3V/1m, Erin’s Audio Corner) | - |
| Frequency Response | - | 43Hz - 50kHz |
| Max SPL | - | 112dB per pair at 1m |
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Prices on this page were last checked August 25, 2026 at 6:19 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: $469.99 Amazon eBay
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 |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
HEDD Type 05 A-CORE: $699 Bhphotovideo eBay
Pros: AMT (Air Motion Transformer) tweeter paired with a 5” Honeycomb-compound woofer, hand-assembled and individually tested in Berlin. Pure-analog signal path with no ADC/DAC or DSP dependency, so there’s zero digital latency and no firmware to keep updated. Deepest measured bass extension relative to size in this whole batch: 43.9Hz at -3dB / 37.1Hz at -10dB. Bi-amped 200W total (2x100W ICEpower Class D). 5-year warranty after registration.
Cons: On-axis deviation is the roughest of this batch (aad_on_axis 0.658), and both nbd_on_axis (0.456) and nbd_listening_window (0.404) trail most other speakers added here - a comparatively less linear response than its stablemates. The analog-only design means no room-correction DSP or digital I/O, a deliberate tradeoff versus HEDD’s pricier DSP-based Type 05 MK2 sibling. Sold individually at $714/unit ($1,428/pair).
Full HEDD Type 05 A-CORE review and specifications →
| App | None (analog-only, no DSP) |
|---|---|
| Bass Extension (-10dB) | 37.1Hz (measured, spinorama.org) |
| Bass Extension (-3dB) | 43.9Hz (measured, spinorama.org) |
| Bluetooth | No |
| Dimensions | 12.1" x 7.1" x 9.6" (308 x 180 x 245 mm) (12.1 x 7.1 x 9.7 in) each |
| Drivers | AMT (Air Motion Transformer) tweeter, 5" Honeycomb-compound woofer |
| EQ | Yes, analog High/Low shelving, ±6dB continuous |
| Frequency Response | 43Hz - 50kHz |
| Inputs | RCA unbalanced, XLR/TRS combo balanced |
| Max SPL | 112dB per pair at 1m |
| Output Power | 200W total, bi-amped (2x100W ICEpower Class D) |
| Weight | 13.7 lbs / 6.2 kg (13.7 lb) each |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
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- HEDD Type 05 A-CORE vs KRK Classic 5
- HEDD Type 05 A-CORE vs Kali Audio IN-5
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