KEF LSX II LT vs KRK Classic 5

Last updated: October 1, 2026

Short answer: the KEF LSX II LT for measured dispersion, the KRK Classic 5 for soundstage. The Classic 5 throws a good soundstage, but it leans more hifi than studio monitor. The LSX II LT’s coaxial driver spreads about +/-60 degrees each way for a wide sweet spot, though its small drivers are SPL-limited: bass compression around 88-92dB/1m and multitone distortion crossing 3% near 96dB.

KEF LSX II LT vs KRK Classic 5

What the KEF LSX II LT gets right: 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 catch: 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 $160 you would save on the KRK Classic 5 does not close the gap.

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Specifications Side By Side

KEF LSX II LT KRK Classic 5
Price$479.99 per pair$319.99 per pair
Ranked#27 of 68 in Medium Size Powered Bookshelf Speakers#50 of 68 in Medium Size Powered Bookshelf Speakers
Dimensions9.5”H x 6.1”W x 7.1”D (241.3 x 154.9 x 180.3 mm)9.7”H x 7.4”W x 11.2”D (246.4 x 188 x 284.5 mm)
InputsWifi, USB-C, HDMI, Optical, BluetoothRCA, TRS, XLR
OutputsRCA Subwoofer-
Drivers115mm (4.5in.) magnesium/aluminium alloy cone woofer, 19mm (0.75in.) aluminium dome tweeter5” (127mm) woofer
Weight15 lbs (6.8 kg)12.9 lbs (5.87 kg)
AppNoNo
BluetoothYesNo
EQNoYes (Room adjustment)
Amplifier Power100w RMS Per Speaker50w RMS Per Speaker
Bass Extension (-3dB)55Hz (measured, Erin’s Audio Corner)60.1Hz (Spinorama/Audio Science Review)
Bass Extension (-10dB)46Hz (measured, Erin’s Audio Corner)-
Sensitivity84dB (measured at 0.3V/1m, Erin’s Audio Corner)-
Spinorama Preference Score4.813.47
Spinorama Preference Score with Perfect Sub7.035.99
Subwoofer OutputYes-
XLR InputNoYes
RCA InputNoYes
TRS InputNoYes
Optical InputYesNo
Coaxial InputNoNo
USB InputYesNo
HDMI InputYesNo
AES InputNoNo
Aux InputNoNo
Frequency Response54Hz - 28kHz (±3dB) (Manufacturer specified)56Hz-30kHz (+-3dB) (Manufacturer specified)
Bass Extension (-6dB)-54.2Hz (Spinorama/Audio Science Review)

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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

KEF LSX II LT ranking card

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.

AES InputNo
Amplifier Power100w RMS Per Speaker
AppNo
Aux InputNo
Bass Extension (-10dB)46Hz (measured, Erin’s Audio Corner)
Bass Extension (-3dB)55Hz (measured, Erin’s Audio Corner)
BluetoothYes
Coaxial InputNo
Dimensions9.5”H x 6.1”W x 7.1”D (241.3 x 154.9 x 180.3 mm)
Drivers115mm (4.5in.) magnesium/aluminium alloy cone woofer, 19mm (0.75in.) aluminium dome tweeter
EQNo
Frequency Response54Hz - 28kHz (±3dB) (Manufacturer specified)
HDMI InputYes
InputsWifi, USB-C, HDMI, Optical, Bluetooth
Optical InputYes
OutputsRCA Subwoofer
RCA InputNo
Sensitivity84dB (measured at 0.3V/1m, Erin’s Audio Corner)
Spinorama Preference Score4.81
Spinorama Preference Score with Perfect Sub7.03
Subwoofer OutputYes
TRS InputNo
USB InputYes
Weight15 lbs (6.8 kg)
XLR InputNo

KRK Classic 5: $319.99 per pair Amazon eBay

KRK Classic 5 ranking card

Pros: ASR’s Klippel data gives -3dB bass around 60Hz and a 5.99 preference score with an ideal subwoofer. Broad tonal correction can improve it, so it may be useful to someone willing to measure and EQ a basic studio setup. Measured bass extension of 60.1Hz (-3dB).

Cons: The native standalone score is 3.47 and the midrange span is a large 6.5dB. Excess treble and crossover/directivity errors keep it from being neutral out of the box, while low-bass distortion limits loud playback. Modeled EQ scores are not stock performance and do not demonstrate corrected distortion or dispersion.

AES InputNo
Amplifier Power50w RMS Per Speaker
AppNo
Aux InputNo
Bass Extension (-3dB)60.1Hz (Spinorama/Audio Science Review)
Bass Extension (-6dB)54.2Hz (Spinorama/Audio Science Review)
BluetoothNo
Coaxial InputNo
Dimensions9.7”H x 7.4”W x 11.2”D (246.4 x 188 x 284.5 mm)
Drivers5” (127mm) woofer
EQYes (Room adjustment)
Frequency Response56Hz-30kHz (+-3dB) (Manufacturer specified)
HDMI InputNo
InputsRCA, TRS, XLR
Optical InputNo
RCA InputYes
Spinorama Preference Score3.47
Spinorama Preference Score with Perfect Sub5.99
TRS InputYes
USB InputNo
Weight12.9 lbs (5.87 kg)
XLR InputYes