Short answer: the Dynaudio Emit 20. It ranks #75 of 131 bookshelf speakers by sound quality, rated 3.6/5, at $1,049. The HSU Research MFL-6 ranks #96, rated 3.3/5, at $558, $491 cheaper, a saving that is not big enough to make up the sound-quality gap.
What the Dynaudio Emit 20 does well: Two-way design with a 28mm Esotar soft dome tweeter (Hexis-damped) and an 18cm mid-woofer, using a first-order crossover on the tweeter and second-order on the woofer. The tradeoff: 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.
The case for the HSU Research MFL-6: A high-output 6.5-inch design with horn-loaded tweeter, strong measured sensitivity and flexible wall, stand or horizontal placement. Watch for: Its response deviation is substantial and the horn narrows dispersion, so tonal balance and seating coverage are less even than the best conventional monitors.
Buy the Dynaudio Emit 20. It is rated higher for sound quality, and the $491 you would save on the HSU Research MFL-6 does not close the gap.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| Dynaudio Emit 20 | HSU Research MFL-6 | |
|---|---|---|
| Price | $1,049.00 per pair | $558 per pair |
| Ranked | #75 of 131 in Large Size Bookshelf Speakers | #96 of 131 in Large Size Bookshelf Speakers |
| Bass Extension (-10dB) | 33Hz (measured, Erin’s Audio Corner) | - |
| Bass Extension (-3dB) | 54Hz (measured, Erin’s Audio Corner) | 77.6Hz (measured, spinorama.org) |
| Drivers | 7.1” Magnesium Silicate Polymer woofer, 1.1” Cerotar soft dome with Hexis tweeter | 1” horn-loaded tweeter, 6.5” paper-cone woofer |
| Weight | 12.8 lbs (5.8 kg) | 13 lbs (5.9 kg) each |
| Sensitivity | 83.5dB (measured, Erin’s Audio Corner; 86dB manufacturer specified) | 85.6dB (measured average 300Hz-3kHz @ 2.83V/1m, spinorama.org) |
| Impedance | 6 ohms nominal (5.5 ohms minimum above 80Hz, measured, Erin’s Audio Corner) | 8 ohms |
| Dimensions | 14.6”H x 8.1”W x 12.3”D (370.0 x 205.0 x 312.0 mm) | 16H x 8W x 6.25-10.375D in |
| Woofer Cabinet | ported, rear | - |
| Spinorama Preference Score | 4.22 | 2.63 |
| Spinorama Preference Score with Perfect Sub | 5.92 | 4.77 |
| DIY Kit | No | No |
| Enclosure | - | 2-way bass reflex |
| Frequency Response | - | 60Hz-20kHz +/-2dB |
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Prices on this page were last checked September 26, 2026 at 11:14 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
Dynaudio Emit 20: $1,049.00 per pair Amazon eBay
Pros: Two-way design with a 28mm Esotar soft dome tweeter (Hexis-damped) and an 18cm mid-woofer, using a first-order crossover on the tweeter and second-order on the woofer. Exceptional bass extension for a bookshelf speaker - reaches a clean, authoritative 40Hz in-room, rare enough that the reviewer says most listeners could skip a subwoofer for typical music. Very low distortion across the board, staying below 1% THD down to 40Hz at 86dB and below 3% even at 96dB - unusually clean bass performance where most two-way bookshelf speakers start rising in distortion around 80Hz. Wide, remarkably consistent horizontal directivity (about ±50-60°) that holds steady up to roughly 13kHz - rare for a speaker in this format, thanks to a beveled tweeter edge that acts as a mild waveguide. Excellent compression and dynamic-range linearity at the frequency extremes, actually showing slight bass enhancement rather than the sharp low-end compression common in similarly-sized bookshelf speakers. Measured bass extension of 54Hz (-3dB), with a measured sensitivity of 83.5dB.
Cons: 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. A peak around 4kHz adds a sharp, edgy quality to some male vocals. A roughly 5dB boost above 10kHz gives cymbals and hi-hats excess shimmer that can sound unnatural, especially pointed directly on-axis. Vertical dispersion shows two separate crossover-related notches (above and below the tweeter reference line around 5kHz) rather than the usual single one, a direct consequence of the shallow crossover slopes used on both drivers. Multitone distortion is elevated in the midrange, possibly due to the woofer’s magnet structure lacking a shorting ring. Best aimed slightly off-axis (about 10-15° of toe-out) to tame the excess high-frequency shimmer, rather than pointed straight at the listener.
Full Dynaudio Emit 20 review and specifications →
| Bass Extension (-10dB) | 33Hz (measured, Erin’s Audio Corner) |
|---|---|
| Bass Extension (-3dB) | 54Hz (measured, Erin’s Audio Corner) |
| DIY Kit | No |
| Dimensions | 14.6”H x 8.1”W x 12.3”D (370.0 x 205.0 x 312.0 mm) |
| Drivers | 7.1” Magnesium Silicate Polymer woofer, 1.1” Cerotar soft dome with Hexis tweeter |
| Impedance | 6 ohms nominal (5.5 ohms minimum above 80Hz, measured, Erin’s Audio Corner) |
| Sensitivity | 83.5dB (measured, Erin’s Audio Corner; 86dB manufacturer specified) |
| Spinorama Preference Score | 4.22 |
| Spinorama Preference Score with Perfect Sub | 5.92 |
| Weight | 12.8 lbs (5.8 kg) |
| Woofer Cabinet | ported, rear |
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HSU Research MFL-6: $558 per pair HSU Research eBay
Pros: A high-output 6.5-inch design with horn-loaded tweeter, strong measured sensitivity and flexible wall, stand or horizontal placement. The local Spinorama snapshot delivers a solid 2.63 raw score and 4.77 with a subwoofer, with controlled horizontal radiation and 45Hz extension. Measured bass extension of 77.6Hz (-3dB), with a measured sensitivity of 85.6dB.
Cons: Its response deviation is substantial and the horn narrows dispersion, so tonal balance and seating coverage are less even than the best conventional monitors. The trapezoidal cabinet and utilitarian finish are optimized for function rather than furniture-grade appearance.
Full HSU Research MFL-6 review and specifications →
| Bass Extension (-3dB) | 77.6Hz (measured, spinorama.org) |
|---|---|
| DIY Kit | No |
| Dimensions | 16H x 8W x 6.25-10.375D in |
| Drivers | 1” horn-loaded tweeter, 6.5” paper-cone woofer |
| Enclosure | 2-way bass reflex |
| Frequency Response | 60Hz-20kHz +/-2dB |
| Impedance | 8 ohms |
| Sensitivity | 85.6dB (measured average 300Hz-3kHz @ 2.83V/1m, spinorama.org) |
| Spinorama Preference Score | 2.63 |
| Spinorama Preference Score with Perfect Sub | 4.77 |
| Weight | 13 lbs (5.9 kg) each |
- Links
- Reviews, Comparisons and Sound Samples
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