Short answer: the KEF LS50 Wireless II for directivity, the IK Multimedia iLoud MTM MKII for its included room correction. The LS50 Wireless II’s Uni-Q array measures the tightest directivity spread of this batch, though its Primary/Secondary architecture limits placement. The MTM MKII pairs two 3.5-inch midwoofers and a 1-inch tweeter at 100W per speaker, but native treble runs about 3dB hot and roughly -1.5dB via external EQ works better.
What the KEF LS50 Wireless II offers: Uni-Q coincident driver array (130mm aluminum woofer with a 25mm MAT dome tweeter mounted at its acoustic center) gives excellent, consistent off-axis dispersion, measuring the tightest directivity spread of this batch alongside a smooth listening-window response. Set against that: Primary/Secondary architecture means one speaker handles every input while the other depends on a wireless or wired Ethernet link back to it - placement is less flexible than a fully symmetric pair.
Buy the KEF LS50 Wireless II if sound quality matters more than the price. Buy the IK Multimedia iLoud MTM MKII if the price matters more than sound quality.
Still deciding? The full Powered Home rankings cover every ranked option.
Specifications Side By Side
| KEF LS50 Wireless II | IK Multimedia iLoud MTM MKII | |
|---|---|---|
| Price | $2,999.99 per pair | $799.99 per pair |
| Ranked | #14 of 68 in Medium Size Powered Bookshelf Speakers | #17 of 68 in Medium Size Powered Bookshelf Speakers |
| Bass Extension (-10dB) | 41.5Hz (measured, spinorama.org) | 46.3Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 51.3Hz (measured, spinorama.org) | 52.7Hz (measured, Erin’s Audio Corner) |
| Inputs | HDMI eARC, optical, digital coaxial, 3.5mm analog, USB-A (service), Ethernet | XLR |
| Drivers | Uni-Q coincident array: 130mm aluminum woofer + 25mm MAT aluminum dome tweeter | 2x 3.5” (89mm) woofers, 1” silk dome tweeter |
| App | KEF Connect (placement EQ presets, source selection, firmware updates) | Yes (X-MONITOR speaker emulation) |
| Bluetooth | Yes, 4.2 | No |
| EQ | Yes, fixed placement presets (desk/bookshelf/wall-mount) - no automatic room correction | Yes (Room adjustment) |
| Weight | 44.3 lbs (20.1 kg) for the pair | 5.5 lbs (2.5 kg) each |
| Amplifier Power | 280W (LF) + 100W (HF) per speaker, bi-amped | 100w Per Speaker |
| Dimensions | 12” x 7.9” x 12.2” (305 x 200 x 311 mm) each | 10.4”H x 5.1”W x 6.3”D (264.2 x 129.5 x 160 mm) |
| Frequency Response | 45Hz - 28kHz ±3dB | 48 Hz - 28 kHz (±2dB) (Manufacturer specified) |
| Maximum SPL | 108dB at 1m (manufacturer specified) | 112.5dB peak (manufacturer specified) |
| Spinorama Preference Score | 5.43 | 5.22 |
| Spinorama Preference Score with Perfect Sub | 7.51 | 7.44 |
| Subwoofer Output | Yes | - |
| Outputs | RCA subwoofer | - |
| XLR Input | No | Yes |
| RCA Input | No | No |
| TRS Input | No | No |
| Optical Input | Yes | No |
| Coaxial Input | Yes | No |
| USB Input | No | No |
| HDMI Input | Yes | No |
| AES Input | No | No |
| Aux Input | Yes | No |
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Prices on this page were last checked October 3, 2026 at 10:26 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 LS50 Wireless II: $2,999.99 per pair Amazon KEF Crutchfield eBay
Pros: Erin’s measurements give preference scores of 5.43 standalone and 7.51 with an ideal subwoofer, with a -3dB point around 51Hz. The coincident Uni-Q layout helps preserve tonal consistency across horizontal and vertical listening positions. Low listening-window narrow-band deviation of 0.308 supports relatively clean midrange reproduction. HDMI eARC and streaming functions make it a capable all-in-one stereo system. Measured bass extension of 51.3Hz (-3dB).
Cons: The 3.0dB response span is good but not reference-leading, and dispersion still varies with frequency. Compact bass drivers limit deep-bass output. App placement adjustments are not the same as microphone-based automatic room correction. The price and primary/secondary architecture are practical trade-offs; neither driver geometry nor a single directivity statistic guarantees the best sound in every room.
Full KEF LS50 Wireless II review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 280W (LF) + 100W (HF) per speaker, bi-amped |
| App | KEF Connect (placement EQ presets, source selection, firmware updates) |
| Aux Input | Yes |
| Bass Extension (-10dB) | 41.5Hz (measured, spinorama.org) |
| Bass Extension (-3dB) | 51.3Hz (measured, spinorama.org) |
| Bluetooth | Yes, 4.2 |
| Coaxial Input | Yes |
| Dimensions | 12” x 7.9” x 12.2” (305 x 200 x 311 mm) each |
| Drivers | Uni-Q coincident array: 130mm aluminum woofer + 25mm MAT aluminum dome tweeter |
| EQ | Yes, fixed placement presets (desk/bookshelf/wall-mount) - no automatic room correction |
| Frequency Response | 45Hz - 28kHz ±3dB |
| HDMI Input | Yes |
| Inputs | HDMI eARC, optical, digital coaxial, 3.5mm analog, USB-A (service), Ethernet |
| Maximum SPL | 108dB at 1m (manufacturer specified) |
| Optical Input | Yes |
| Outputs | RCA subwoofer |
| RCA Input | No |
| Spinorama Preference Score | 5.43 |
| Spinorama Preference Score with Perfect Sub | 7.51 |
| Subwoofer Output | Yes |
| TRS Input | No |
| USB Input | No |
| Weight | 44.3 lbs (20.1 kg) for the pair |
| XLR Input | No |
- Links
- Reviews, Comparisons and Sound Samples
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IK Multimedia iLoud MTM MKII: $799.99 per pair Amazon eBay
Older model: the IK Multimedia iLoud MTM (ranked lower, rated 4.1/5).
Pros: Erin’s MKII measurements give a 2.2dB midrange span, a -3dB point around 53Hz, and preference scores of 5.22 standalone and 7.44 with an ideal subwoofer. The compact layout and included calibration microphone suit a close desktop setup. Existing tests show useful room-peak correction and good harmonic-distortion behavior at moderate levels. Measured bass extension of 52.7Hz (-3dB).
Cons: Some excess treble remains in the native tuning. The two-woofer MTM arrangement narrows the vertical listening window, so ear height and orientation matter. Multitone distortion rises strongly when pushed toward 96dB/1m; the review favors moderate listening levels, and a subwoofer does not eliminate all midrange output limits. These are MKII results, not measurements of the original MTM. Treble runs about 3dB hot on-axis; the rear -3dB treble switch overcorrects, and about -1.5dB of external EQ works better.
Full IK Multimedia iLoud MTM MKII review and specifications →
| AES Input | No |
|---|---|
| Amplifier Power | 100w Per Speaker |
| App | Yes (X-MONITOR speaker emulation) |
| Aux Input | No |
| Bass Extension (-10dB) | 46.3Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 52.7Hz (measured, Erin’s Audio Corner) |
| Bluetooth | No |
| Coaxial Input | No |
| Dimensions | 10.4”H x 5.1”W x 6.3”D (264.2 x 129.5 x 160 mm) |
| Drivers | 2x 3.5” (89mm) woofers, 1” silk dome tweeter |
| EQ | Yes (Room adjustment) |
| Frequency Response | 48 Hz - 28 kHz (±2dB) (Manufacturer specified) |
| HDMI Input | No |
| Inputs | XLR |
| Maximum SPL | 112.5dB peak (manufacturer specified) |
| Optical Input | No |
| RCA Input | No |
| Spinorama Preference Score | 5.22 |
| Spinorama Preference Score with Perfect Sub | 7.44 |
| TRS Input | No |
| USB Input | No |
| Weight | 5.5 lbs (2.5 kg) each |
| XLR Input | Yes |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- IK Multimedia iLoud MTM MKII vs Sigberg Audio SBS Gen 2
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