Short answer: the AsciLab A6B Passive on measured sound quality, the Epos ES14N on price. The AsciLab A6B Passive ranks #18 of 131 bookshelf speakers at $3790. The Epos ES14N ranks #19 at $3750, $40 cheaper.
The case for the AsciLab A6B Passive: A Purifi 6.5 inch aluminum cone woofer works with two side mounted passive radiators and a Klippel NFS optimized crossover to reach a measured 41.0Hz extension point with an on axis slope of just -0.10dB per octave, essentially flat. Watch for: 4 ohm nominal impedance and 82dB sensitivity call for a robust amplifier.
On the Epos ES14N side: A revival of Epos’s classic 1980s ES-14, re-engineered by Karl-Heinz Fink’s FinkTeam with a chamfered, backward sloping baffle to time align a 28mm ceramic coated dome tweeter with a 7 inch mica filled polypropylene woofer. The catch: The sound power directivity index has the widest standard deviation of any speaker added to this catalog from spinorama.org’s current measurement set, 5.18, meaning off axis energy tracks the on axis response less consistently than the rest of this batch as frequency rises.
Buy the AsciLab A6B Passive when sound quality outweighs the price for you, and the Epos ES14N when the price outweighs sound quality instead.
Specifications Side By Side
| AsciLab A6B Passive | Epos ES14N | |
|---|---|---|
| Price | 3790 EUR/pair | 3750-4400 GBP/pair |
| Ranked | #18 of 131 in Large Size Bookshelf Speakers | #19 of 131 in Large Size Bookshelf Speakers |
| Enclosure | sealed with passive radiators | ported |
| Drivers | 1" dome tweeter, 6.5" Purifi aluminum cone woofer, 2x 6.5" Purifi passive radiators | 28mm aluminum/ceramic compound dome tweeter, 7" mica filled polypropylene cone woofer |
| Dimensions | 15.9"H x 8.7"W x 11.8"D (405 x 220 x 300 mm) (15.9 x 8.7 x 11.8 in) | 19.3"H x 9.8"W x 15.2"D (491 x 250 x 385 mm) (19.3 x 9.8 x 15.2 in) |
| Weight | 27.1 lbs / 12.3 kg (27 lbs) each | 35.3 lbs / 16 kg (35.3 lbs) each |
| Sensitivity | 82dB @ 2.83V/1m | 87dB @ 2.823V/1m |
| Impedance | 4 ohms nominal | 6 ohms nominal, 4.3 ohms minimum |
| Bass Extension (-3dB) | 41.0Hz (measured, Audio Science Review) | 51.2Hz (measured, spinorama.org data) |
| Bass Extension (-10dB) | 34.7Hz (measured, Audio Science Review) | 35.3Hz (measured, spinorama.org data) |
| Max SPL | 102dB full bandwidth, 106dB above 100Hz | - |
| Crossover Points | 1kHz | 2.7kHz |
| Warranty | 2 years | - |
| Country | South Korea | Germany |
Related Speaker Comparisons
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- ELAC Debut 3.0 DB63 vs AsciLab A6B Passive
- Epos ES14N vs MoFi SourcePoint 8
- AsciLab F6Bs vs Epos ES14N
- ELAC Debut 3.0 DB63 vs Epos ES14N
- MoFi SourcePoint 8 vs Radiant Acoustics Clarity 6.2
Prices on this page were last checked September 8, 2026 at 6:02 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
AsciLab A6B Passive: 3790 EUR/pair Audiophonics eBay
Pros: A Purifi 6.5 inch aluminum cone woofer works with two side mounted passive radiators and a Klippel NFS optimized crossover to reach a measured 41.0Hz extension point with an on axis slope of just -0.10dB per octave, essentially flat. On axis deviation measures 0.071dB average, the tightest figure of any speaker added to this catalog from spinorama.org’s current measurement set. Listening window smoothness (0.60) sits in line with AsciLab’s other highly rated bookshelf models already in this catalog.
Cons: 4 ohm nominal impedance and 82dB sensitivity call for a robust amplifier. AsciLab and its resellers frequently list the A6B as sold out or preorder only, and reported prices vary widely by source and region, from roughly $2,900 to over $3,900 per pair, so confirm the current listing before buying. Tweeter material is described inconsistently between sources (alumina ceramic dome versus an SB Acoustics unit), worth verifying directly with a reseller if that detail matters to you.
Full AsciLab A6B Passive review and specifications →
| Bass Extension (-10dB) | 34.7Hz (measured, Audio Science Review) |
|---|---|
| Bass Extension (-3dB) | 41.0Hz (measured, Audio Science Review) |
| Country | South Korea |
| Crossover Points | 1kHz |
| Dimensions | 15.9"H x 8.7"W x 11.8"D (405 x 220 x 300 mm) (15.9 x 8.7 x 11.8 in) |
| Drivers | 1" dome tweeter, 6.5" Purifi aluminum cone woofer, 2x 6.5" Purifi passive radiators |
| Enclosure | sealed with passive radiators |
| Impedance | 4 ohms nominal |
| Max SPL | 102dB full bandwidth, 106dB above 100Hz |
| Sensitivity | 82dB @ 2.83V/1m |
| Warranty | 2 years |
| Weight | 27.1 lbs / 12.3 kg (27 lbs) each |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons
Epos ES14N: 3750-4400 GBP/pair Audio Venue (UK) eBay
Pros: A revival of Epos’s classic 1980s ES-14, re-engineered by Karl-Heinz Fink’s FinkTeam with a chamfered, backward sloping baffle to time align a 28mm ceramic coated dome tweeter with a 7 inch mica filled polypropylene woofer. On axis deviation measures a clean 0.216dB average and listening window smoothness reaches 0.53, both among the better figures in this batch, and the larger woofer reaches a measured 51.2Hz at -3dB with a low 0.2% THD at 1W.
Cons: The sound power directivity index has the widest standard deviation of any speaker added to this catalog from spinorama.org’s current measurement set, 5.18, meaning off axis energy tracks the on axis response less consistently than the rest of this batch as frequency rises. The bass alignment also measures a higher Q of 1.10, hinting at a mild bump near the port tuning frequency. At £3,750 to £4,400/pair depending on finish it is a serious investment, and dealer availability is limited outside the UK and Canada.
Full Epos ES14N review and specifications →
| Bass Extension (-10dB) | 35.3Hz (measured, spinorama.org data) |
|---|---|
| Bass Extension (-3dB) | 51.2Hz (measured, spinorama.org data) |
| Country | Germany |
| Crossover Points | 2.7kHz |
| Dimensions | 19.3"H x 9.8"W x 15.2"D (491 x 250 x 385 mm) (19.3 x 9.8 x 15.2 in) |
| Drivers | 28mm aluminum/ceramic compound dome tweeter, 7" mica filled polypropylene cone woofer |
| Enclosure | ported |
| Impedance | 6 ohms nominal, 4.3 ohms minimum |
| Sensitivity | 87dB @ 2.823V/1m |
| Weight | 35.3 lbs / 16 kg (35.3 lbs) each |
- Links
- Reviews, Comparisons and Sound Samples
- Head-to-Head Comparisons