The AsciLab C5B ranks #21 out of 144 total Medium Size Bookshelf Speakers for sound quality. See all Passive Home rankings for every top pick.
Brand: AsciLab
Prices on this page were last checked October 6, 2026 at 10:23 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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#21 AsciLab C5B: $1,000 per pair Discontinued eBay
Pros: A compact two-way with an aluminium-ceramic woofer and a 1” aluminium-ceramic dome tweeter in a waveguide, from the measurement-driven AsciLab. AsciLab’s high-quality measurements show a very flat on-axis response (0.08 average deviation), for a preference score of 6.14 that reaches 8.09 with an ideal subwoofer.
Cons: Bass reaches 54.2Hz (-3dB) and about 37Hz (-10dB). The data comes from AsciLab, and it is no longer in AsciLab’s lineup. Discontinued.
How it compares: Just above it: SunAudio Purified 4 4XA25A Fiber+Alu - $2300 more. Just below it: Emotiva B1+ - $750 cheaper.
| Bass Extension (-10dB) | about 37.1Hz (measured, manufacturer data via spinorama.org) |
|---|---|
| Bass Extension (-3dB) | 54.2Hz (measured, manufacturer data via spinorama.org) |
| DIY Kit | No |
| Dimensions | 14.3”H x 6.9”W x 9.1”D (362 x 176 x 230 mm) |
| Drivers | aluminium-ceramic woofer, 1” aluminium-ceramic dome tweeter with waveguide |
| Spinorama Preference Score | 6.14 |
| Spinorama Preference Score with Perfect Sub | 8.09 |
| Weight | 22.9 lbs (10.4 kg) each |
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