The AsciLab A6B Passive ranks #18 out of 104 total Large Size Bookshelf Speakers for sound quality. See Top Recommended Speakers By Attribute for all the top speaker suggestions.
#18 AsciLab A6B Passive: 3790 EUR/pair Audiophonics
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.
How it compares: Just above it: MoFi SourcePoint 8 - 4.3Hz higher bass extension (-3dB). Just below it: Epos ES14N - 5Hz higher bass extension (-3dB).
| 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 |
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