Short answer: the KEF LS50 Meta. It ranks #4 of 179 bookshelf speakers by sound quality (rated 4.5/5) at $1,599.99 and is still sold new; the Dayton Audio MK402X ranks #79 (rated 3.4/5) and is discontinued, so it is only an option used.
The KEF LS50 Meta is the more accurate choice. An iconic compact KEF speaker with highly accurate sound, pinpoint imaging and a coaxial driver that keeps tone even across the room. Its measured preference score, a predictor of how neutral it sounds, is 5.74 against 4.01 for the Dayton Audio MK402X. Watch for: F3 of 67Hz and F10 of 42Hz mean it doesn’t get much below 50Hz in-room; a subwoofer is recommended for real bass.
The case for the Dayton Audio MK402X: Inexpensive 4 inch bookshelf speakers with an upgraded crossover and broad dispersion, good for a desk or small room. The tradeoff: The response tilts bright at +0.20dB per octave and predicted in-room smoothness is a poor 0.18.
Buy the KEF LS50 Meta. It is rated higher for sound quality, and the Dayton Audio MK402X is discontinued, so it is only available used.
Want more options? Browse the full Passive Home rankings.
An iconic compact KEF speaker with highly accurate sound, pinpoint imaging and a coaxial driver that keeps tone even across the room.
Inexpensive 4 inch bookshelf speakers with an upgraded crossover and broad dispersion, good for a desk or small room.
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Specifications Side By Side
| KEF LS50 Meta | Dayton Audio MK402X | |
|---|---|---|
| Price | $1,599.99 per pair | $97.99 per pair Discontinued |
| Ranked | #4 of 179 in Medium Size Bookshelf Speakers | #79 of 179 in Medium Size Bookshelf Speakers |
| Bass Extension (-10dB) | 43Hz (measured, Erin’s Audio Corner) | about 44.4Hz (measured, Audio Science Review) |
| Bass Extension (-3dB) | 68Hz (measured, Erin’s Audio Corner) | 63.0Hz (measured, spinorama.org) |
| Dimensions | 11.9”H x 7.9”W x 11”D (302 x 200 x 280.5 mm) | 9.5H x 5.75W x 6.5D in |
| Impedance | 8 ohms nominal (3.7 ohms minimum above 80Hz, measured by Erin’s Audio Corner) | 4 ohms |
| Sensitivity | 83dB (measured average, Erin’s Audio Corner; 85dB manufacturer specified) | 84dB |
| Drivers | 130 mm (5.25 in.) aluminium cone woofer, 25 mm (1 in.) vented aluminium dome with Metamaterial Absorption tweeter | 0.75” dome tweeter, 4” treated-paper woofer |
| Weight | 17.2 lbs (7.8 kg) each | approx. 5.1 lbs (2.3 kg) each |
| Woofer Cabinet | ported, rear | - |
| Spinorama Preference Score | 5.74 | 4.01 |
| Spinorama Preference Score with Perfect Sub | 7.88 | 6.42 |
| DIY Kit | No | No |
| Enclosure | - | 2-way, bass-reflex |
| Country | - | United States (design) |
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