Short answer: a tie on sound quality. Both are rated 3.6/5 (#133 and #138 of 222 bookshelf speakers), so choose on features and fit.
The Dynaudio Emit 20 is the deeper-bass choice. Bookshelf speakers with unusually deep, low distortion bass for a two-way design and wide, consistent dispersion. Its bass reaches about 54Hz before falling 3dB, against 67.4Hz for the Mission LX-3 MKII. The catch: A resonance around 600-800Hz gives snares and similar percussion a muffled, flat quality lacking impact: confirmed as originating in the woofer itself (isolated via measurements of the raw driver out of the cabinet), and attempts at constrained-layer damping didn’t resolve it.
What the Mission LX-3 MKII does well: Large affordable standmount speakers with a 6.5 inch woofer, useful bass and easy to drive sensitivity. Watch for: On-axis smoothness of 0.217 and predicted in-room smoothness of 0.344 reveal clear response unevenness, with a -0.46dB-per-octave downward tilt.
Buy the Dynaudio Emit 20 or the Mission LX-3 MKII on features: they are rated the same for sound quality at close to the same price.
Looking for alternatives? See the complete Passive Home rankings.
Bookshelf speakers with unusually deep, low distortion bass for a two-way design and wide, consistent dispersion.
Large affordable standmount speakers with a 6.5 inch woofer, useful bass and easy to drive sensitivity.
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Specifications Side By Side
| Dynaudio Emit 20 | Mission LX-3 MKII | |
|---|---|---|
| Price | $1,049.00 per pair | £249 per pair |
| Ranked | #133 of 222 in Large Size Bookshelf Speakers | #138 of 222 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 33Hz (measured, Erin’s Audio Corner) | 42.5Hz (derived from ASR on-axis curve, spinorama.org) |
| Bass Extension (-3dB) | 54Hz (measured, Erin’s Audio Corner) | 67.4Hz (measured, ASR via spinorama.org) |
| Drivers | 7.1” Magnesium Silicate Polymer woofer, 1.1” Cerotar soft dome with Hexis tweeter | 1” microfiber-dome tweeter, 6.5” composite-fiber woofer |
| Weight | 12.8 lbs (5.8 kg) | 18.5 lbs (8.4 kg) each |
| Sensitivity | 83.5dB (measured, Erin’s Audio Corner; 86dB manufacturer specified) | 88dB |
| Impedance | 6 ohms nominal (5.5 ohms minimum above 80Hz, measured, Erin’s Audio Corner) | 8 ohms nominal, 4.1 ohms minimum |
| Dimensions | 14.6”H x 8.1”W x 12.3”D (370.0 x 205.0 x 312.0 mm) | 13.6H x 8.9W x 12.1D in |
| Woofer Cabinet | ported, rear | - |
| Spinorama Preference Score | 4.22 | 4.17 |
| Spinorama Preference Score with Perfect Sub | 5.92 | 6.42 |
| DIY Kit | No | No |
| Enclosure | - | 2-way, bass-reflex |
| Country | - | United Kingdom (design) |
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