Short answer: the AsciLab F6Bs. It ranks #20 of 203 bookshelf speakers by sound quality (rated 4.5/5); the Dynaudio Emit 20 ranks #121 (rated 3.6/5).
The AsciLab F6Bs is the more accurate option. A slimmer, sealed, VESA 100 wall mountable variant of AsciLab’s F6B, trading the F6B’s passive radiator for a shallower 15.4cm deep cabinet that can go straight on a wall bracket. Its measured preference score, a predictor of how neutral it sounds, is 5.24 against 4.22 for the Dynaudio Emit 20. The tradeoff: AsciLab’s own site shows the F6Bs sold out, though it remains in stock through resellers like Audiophonics and Tested Audio.
The Dynaudio Emit 20 is the deeper-bass pick. 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. Its bass reaches about 54Hz before falling 3dB, against 82Hz for the AsciLab F6Bs. 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.
Buy the AsciLab F6Bs. It is rated higher for sound quality than the Dynaudio Emit 20.
Want more options? Browse the full Passive Home rankings.
Specifications Side By Side
| AsciLab F6Bs | Dynaudio Emit 20 | |
|---|---|---|
| Price | €799 per pair | $1,049.00 per pair |
| Ranked | #20 of 203 in Large Size Bookshelf Speakers | #121 of 203 in Large Size Bookshelf Speakers |
| Enclosure | sealed | - |
| Drivers | 1” aluminum dome tweeter with waveguide and phase plug, 6” fiber cone woofer | 7.1” Magnesium Silicate Polymer woofer, 1.1” Cerotar soft dome with Hexis tweeter |
| Dimensions | 14.5”H x 8”W x 6.1”D (368 x 203 x 154 mm) | 14.6”H x 8.1”W x 12.3”D (370.0 x 205.0 x 312.0 mm) |
| Weight | 12.3 lbs (5.6 kg) each | 12.8 lbs (5.8 kg) |
| Sensitivity | 85.2dB @ 2.83V/1m (measured, Audio Science Review) | 83.5dB (measured, Erin’s Audio Corner; 86dB manufacturer specified) |
| Impedance | 4 ohms nominal, 3.7 ohms minimum | 6 ohms nominal (5.5 ohms minimum above 80Hz, measured, Erin’s Audio Corner) |
| Bass Extension (-3dB) | 82.0Hz (measured, Audio Science Review) | 54Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 50.1Hz (measured, Audio Science Review) | 33Hz (measured, Erin’s Audio Corner) |
| Crossover Frequency | 1kHz | - |
| Mounting | VESA 100 wall mount compatible | - |
| Warranty | 2 years | - |
| Country | South Korea | - |
| Maximum SPL | 100dB full bandwidth, 102dB above 100Hz (manufacturer specified) | - |
| Spinorama Preference Score | 5.24 | 4.22 |
| Spinorama Preference Score with Perfect Sub | 7.90 | 5.92 |
| DIY Kit | No | No |
| Woofer Cabinet | - | ported, rear |
Related Speaker Comparisons
More top alternatives to AsciLab F6Bs:
- AsciLab F6Bs vs Perlisten S4b
- AsciLab F6Bs vs KEF Reference 1 Meta
- AsciLab F6Bs vs GR-Research NX-Studio
- AsciLab C6B vs AsciLab F6Bs
- Audio First Cadentia 3 vs AsciLab F6Bs
Prices on this page were last checked October 7, 2026 at 9:25 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.
As an eBay Partner, we may be compensated if you make a purchase.
The Two Speakers In Full
AsciLab F6Bs: €799 per pair Audiophonics eBay
Same family: the AsciLab F6B (smaller bookshelf, ranked higher, rated 4.6/5).
Pros: A slimmer, sealed, VESA 100 wall mountable variant of AsciLab’s F6B, trading the F6B’s passive radiator for a shallower 15.4cm deep cabinet that can go straight on a wall bracket. Off axis sound tracks the on axis response unusually consistently for a sealed 2-way this size, and on axis deviation measures a clean 0.25dB average. Measured bass extension of 82.0Hz (-3dB), with a measured sensitivity of 85.2dB.
Cons: AsciLab’s own site shows the F6Bs sold out, though it remains in stock through resellers like Audiophonics and Tested Audio. Bass extension is measured at 82.0Hz at -3dB, noticeably less than the passive radiator equipped F6B, and listening window smoothness measures only a moderate 0.39. The 4 ohm nominal impedance calls for a reasonably capable amplifier.
Full AsciLab F6Bs review and specifications →
| Bass Extension (-10dB) | 50.1Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 82.0Hz (measured, Audio Science Review) |
| Country | South Korea |
| Crossover Frequency | 1kHz |
| DIY Kit | No |
| Dimensions | 14.5”H x 8”W x 6.1”D (368 x 203 x 154 mm) |
| Drivers | 1” aluminum dome tweeter with waveguide and phase plug, 6” fiber cone woofer |
| Enclosure | sealed |
| Impedance | 4 ohms nominal, 3.7 ohms minimum |
| Maximum SPL | 100dB full bandwidth, 102dB above 100Hz (manufacturer specified) |
| Mounting | VESA 100 wall mount compatible |
| Sensitivity | 85.2dB @ 2.83V/1m (measured, Audio Science Review) |
| Spinorama Preference Score | 5.24 |
| Spinorama Preference Score with Perfect Sub | 7.90 |
| Warranty | 2 years |
| Weight | 12.3 lbs (5.6 kg) each |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- AsciLab F6Bs vs Epos ES14N
- AsciLab F6Bs vs MoFi SourcePoint 8
- AsciLab F6Bs vs Arendal 1528 Monitor 8
- AsciLab F6Bs vs Buchardt Audio E50
- AsciLab F6Bs vs Ascend Acoustics CMT-340 SE2
- AsciLab F6Bs vs Wharfedale Super Linton
- AsciLab F6Bs vs KEF R3
- AsciLab F6Bs vs Wharfedale Aura 2
- See all 47 comparisons
Dynaudio Emit 20: $1,049.00 per pair Amazon eBay
Same family: the Dynaudio Emit 10 (smaller bookshelf, estimated 3.2/5), the Dynaudio Emit 30 (smaller floorstanding, rated 3.9/5), the Dynaudio Emit 50 (larger floorstanding, estimated 4.2/5) and the Dynaudio Emit 25C (center, estimated 3.7/5).
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 |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
- Dynaudio Emit 20 vs Philharmonic BMR Monitor
- Dynaudio Emit 20 vs JBL Studio 630
- Dynaudio Emit 20 vs Behringer B2030P
- Dynaudio Emit 20 vs Mission LX-3 MKII
- Dynaudio Emit 20 vs Klipsch RP-600M II
- Dynaudio Emit 20 vs Polk Signature Elite ES20
- Dynaudio Emit 20 vs GR-Research X-LS Encore
- Dynaudio Emit 20 vs Infinity IL10
- See all 70 comparisons