IK Multimedia iLoud MTM vs KEF LSX II LT (August 2026)

Q: Should I buy the IK Multimedia iLoud MTM or the KEF LSX II LT?

Buy the IK Multimedia iLoud MTM if sound quality matters more than the price. Buy the KEF LSX II LT if the price matters more than sound quality.

Short answer: the IK Multimedia iLoud MTM for better sound quality, the KEF LSX II LT for the lower price. The IK Multimedia iLoud MTM ranks #17 of 42 powered bookshelf speakers at $800. The KEF LSX II LT ranks #20 at $600, $200 cheaper.

The case for the IK Multimedia iLoud MTM: Compact MTM layout (two 3.5” midwoofers flanking a 1” tweeter) powered monitor with 100W per speaker and XLR input, well-suited to desktop/nearfield use with great linearity for mixing or mastering. The tradeoff: Native treble tuning runs hot (about 3dB boosted on-axis); the reviewer found the back-panel -3dB switch too aggressive and preferred roughly -1.5dB via external EQ instead.

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 IK Multimedia iLoud MTM if sound quality matters more than the price. Buy the KEF LSX II LT if the price matters more than sound quality.

Buy the IK Multimedia iLoud MTM at Amazon ($800) →Buy the KEF LSX II LT at Amazon ($600.00) →

Specifications Side By Side

	IK Multimedia iLoud MTM	KEF LSX II LT
Price	$800 Discontinued	$600.00
Ranked	#17 of 42 in Medium Size Powered Bookshelf Speakers	#20 of 42 in Medium Size Powered Bookshelf Speakers
Bass Extension (-3dB)	50Hz (measured, Audio Science Review)	55Hz (measured, Erin’s Audio Corner)
Bass Extension (-10dB)	40Hz (measured, Audio Science Review)	46Hz (measured, Erin’s Audio Corner)
Dimensions	10.4"H x 5.1"W x 6.3"D (264.2 x 129.5 x 160 mm)	9.5"H x 6.1"W x 7.1"D (241.3 x 154.9 x 180.3 mm)
Frequency Response	50 Hz - 24 kHz (-3dB) (Manufacturer specified)	-
Inputs	XLR	Wifi, USB-C, HDMI, Optical, Bluetooth
Weight	5.5 lbs / 2.5 kg	15 lbs / 6.8 kg
Drivers	2x 3.5" (89mm) woofers	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	100w Per Speaker	100w RMS Per Speaker
Discontinued	Yes	-
Outputs	-	RCA Subwoofer
Sensitivity	-	84dB (measured at 0.3V/1m, Erin’s Audio Corner)

Buy the IK Multimedia iLoud MTM at Amazon ($800) →Buy the KEF LSX II LT at Amazon ($600.00) →

More useful head-to-heads from the same speaker class:

The Two Speakers In Full

IK Multimedia iLoud MTM: $800 Discontinued Amazon

Pros: Compact MTM layout (two 3.5” midwoofers flanking a 1” tweeter) powered monitor with 100W per speaker and XLR input, well-suited to desktop/nearfield use with great linearity for mixing or mastering. Includes a genuinely effective auto-room-correction microphone that resolved specific room resonance peaks (150Hz and 220Hz in testing), making the midrange sound noticeably more lifelike. Extensive back-panel switches handle desktop vs. free-field placement plus treble/bass adjustment. Harmonic distortion looks good at a moderate 86dB output, appropriate for a speaker this size. Reasonable value at around $799/pair including the calibration mic.

Cons: Native treble tuning runs hot (about 3dB boosted on-axis); the reviewer found the back-panel -3dB switch too aggressive and preferred roughly -1.5dB via external EQ instead. Vertical MTM lobing means listeners need to stay within about 20-25° of the tweeter axis, or the upper-midrange to treble transition suffers significant suckout. Should never be laid on its side (introduces comb filtering); if it must be, the tweeter needs to be pointed directly at the listener. Bass falls off sharply below its F3 of 51Hz (F10 45Hz) - like a cliff - so a subwoofer is required for anything below about 50Hz. Multitone distortion rises sharply at 96dB/1m; the reviewer recommends not exceeding about 86dB for extended listening at any distance. SPL-limited overall: significant bass loss by 96dB, and dynamic range essentially collapses approaching 102dB; maximum broadband output for the pair tops out around 94dB at 1 meter. Horizontal directivity narrows with frequency rather than staying constant, unlike some rival designs. Discontinued.

Full IK Multimedia iLoud MTM review and specifications →

App	No
Bass Extension (-10dB)	40Hz (measured, Audio Science Review)
Bass Extension (-3dB)	50Hz (measured, Audio Science Review)
Bluetooth	No
Dimensions	10.4"H x 5.1"W x 6.3"D (264.2 x 129.5 x 160 mm)
Discontinued	Yes
Drivers	2x 3.5" (89mm) woofers
EQ	Yes (Room adjustment)
Frequency Response	50 Hz - 24 kHz (-3dB) (Manufacturer specified)
Inputs	XLR
Output Power	100w Per Speaker
Weight	5.5 lbs / 2.5 kg

Check current price at Amazon ($800) →Search eBay for IK Multimedia iLoud MTM →Search used audio listings for IK Multimedia iLoud MTM →

As an eBay Partner, we may be compensated if you make a purchase.

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

Check current price at Amazon ($600.00) →Search eBay for KEF LSX II LT →Search used audio listings for KEF LSX II LT →

As an eBay Partner, we may be compensated if you make a purchase.

Links
- Official KEF LSX II LT Product Page
Reviews, Comparisons and Sound Samples
Head-to-Head Comparisons

Specifications Side By Side

Related Speaker Comparisons

The Two Speakers In Full

IK Multimedia iLoud MTM: $800 Discontinued Amazon

KEF LSX II LT: $600.00 Amazon