ASCILAB C6B Bookshelf Speakers Black (Pair)

The AsciLab C6B are passive bookshelf speakers offering precise, powerful sound reproduction in a compact format. These 2-way speakers feature a 1“ alumina-ceramic dome tweeter with custom waveguide and phase tapping, combined with a 6” woofer with alumina-ceramic cone, all housed in an enclosure with passive radiator. 

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2 Years warranty

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AsciLab C6BBookshelf Speakers 250W 4 Ohm 85dB Black (Pair)

Photo of Ascilab C6B

The AsciLab C6B are passive bookshelf speakers offering precise, powerful sound reproduction in a compact format. These 2-way speakers feature a 1“ alumina-ceramic dome tweeter with custom waveguide and phase tapping, combined with a 6” woofer with alumina-ceramic cone, all housed in an enclosure with passive radiator. The 5x8" passive radiator provides a considerable boost at low frequencies. Their design allows for lower crossover points and reduced distortion, for an extremely clear sound reproduction. The C6Bs feature a fourth-order crossover at 1.1kHz, optimized via Klippel NFS, and support up to 250W of amplification. They are ideal for demanding audiophile or professional studio use.

For other colors, please contact us via our contact form. The classic white model is available here.

C6B models

AsciLab C6B: Optimized tweeters for controlled sound dispersion

AsciLab C6B tweeters feature a waveguide and internal phase plug designed to precisely manage sound dispersion. These elements avoid phase interference, reduce internal resonance and improve off-axis dispersion. The advantages of this type of configuration translate into a more linear frequency response, reduced distortion and better spatialization of sound, offering a more coherent soundstage.

Zoom in on the C6B tweeter
Zoom in on the C6B woofer

AsciLab C6B: 6" woofer in alumina ceramic

Despite their compact size, the 6" woofers in AsciLab C6B loudspeakers are capable of delivering powerful, well-defined bass in spaces of up to 25m². Alumina ceramics provide exceptional rigidity for faithful, distortion-free reproduction, even at high volume, thanks to a strong limitation of cone deformation at high sound pressure. High-performance and dynamic, these woofers also come with an aesthetically pleasing protective grille, combining performance and design.

AsciLab C6B: A 5x8" passive radiator

AsciLab C6B speakers feature a passive radiator at the rear. This limits unwanted resonance while optimizing low-frequency reproduction. This solution also helps reduce distortion at high volumes, unlike a bass-reflex port, which can generate turbulence. AsciLab has also chosen to integrate a passive radiator in order to maintain a relatively compact speaker design.

C6B passive radiator

Technical characteristics

Specifications
Product typePassive speakers
Design2 way
Tweeter1" alumina ceramic dome tweeter
Woofer6" alumina-ceramic woofer with aluminum chassis
DesignWith passive radiator
FinishMate
Crossover frequency1.1kHz
Sensitivity85dB @ 2.83V / 1M
SPL Max. (Full-bandwidth)99dB SPL
SPL Max. (>100Hz)105dB SPL
Frequency response-3dB @ 50Hz / -6dB @ 41Hz
ImpedanceNominal 4 ohm (min 200Hz / 2.6 ohm)
Recommanded amplification50W - 250W
Connection to speaker terminalsBanana 4mm
Bare wires
Forks
General
Dimensions40 x 20.3 x 26.5cm
Weight8.4kg/speaker
ColorBlack
Package1x Pair of AsciLab C6B speakers
(Please note that woofer grilles are optional and are not supplied with C6B speakers)
 
Data sheet
ColorBlack
Impedance (Ω)4
Efficiency / Sensitivity (dB)85.0
Lowest frequency (Hz)N/A
Highest frequency (Hz)N/A
Power (W)250.0
Number of ways2
Number of loudspeakers3
Speaker typePassive
Speaker form factorBookshelf speaker
 
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Average votes
5.0 / 5
2 reviews
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 5/5
Date :
Étonnante enceinte pour le prix
En stock : livraison parfaite et ultra-rapide en 3 jours ouvrés. Merci Audiophonics.
Emballage parfait : double carton d'origine + film plastique audiophonics très résistant.
Finition du packaging à saluer : sacs en tissu noués autour de chaque enceinte.
Excellente finition de l'enceinte, très sobre, caisse légère et pourtant bien inerte et rigide.
Positionnées à la place de mes Kef R3, les C6B procurent un sens de la spatialisation de qualité similaire, aussi bien latéralement que dans la profondeur, alors que ce ne sont pas des enceintes coaxiales !
Côté timbres, la qualité est là également, elles sont plus directes (meilleure sensation de présence dans la pièce), avec un équilibre moins descendant que mes Kef : Diana Krall ou Melody Gardot semblent si proches. Je n'ai jamais eu de problème d'agressivité, de rendement, ou d'intelligibilité à niveau modéré.
Comme avec les Kef, j'ai redécouvert les délices de la stéréo, et j'ai pu comparer les versions stéréo et multicanales de mes enregistrements (principalement du classique, mais aussi du jazz, de la pop et de la musique du monde).
En multicanal, elles s'harmonisent bien avec mes enceintes Kef : centrale Q250, surround LS50 et atmos Q50A + SVS SB2000. La « Chinese Rhapsody » de Ge Gan-Ru (en sacd) captive aussi bien en stéréo qu’en multicanal, avec ses alliages de timbres, sa dynamique très variée, la localisation des instruments, le rendu de l’émergence et de l’extinction des passages musicaux. L'écoute des sacd "Das Mikrofon" de Tacet rend justice aux différences entre les microphones historiques (spatialisation, timbres, équilibre).
Cela vaut aussi pour le home cinéma : énergie, spatialisation, impact, nuance.
Dans ma configuration, elles ont un avantage sur mes R3 : elles n'excitent pas les modes de ma pièce d'écoute, même sans égalisation ou bass management, avec une bande passante étonnamment étendue pour une 2 voies avec un woofer de 6". Et le grave est d'excellente qualité : ampleur, impact et précision sur « Okenagon » de Giacinto Scelsi.
Je profite donc pleinement de cette acquisition, en espérant qu’AsciLab propose une enceinte centrale
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This review has been posted for ASCILAB C6B Bookshelf Speakers 250W 4 Ohm 85dB Black (Pair)
Note :
 5/5
Date :
Awesome speakers
I couldn't be happier with the AsciLab C6B speakers. The sheer clarity and openness completely blew me away from the very first listen. They bring out a level of pure, lifelike detail in my favorite tracks that I've simply never heard before. Making the switch to these has been an absolute game changer for my system, and I'm thrilled with the upgrade.
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This review has been posted for ASCILAB C6B Bookshelf Speakers 250W 4 Ohm 85dB Black (Pair)
 
ASCILAB C6B Bookshelf Speakers 250W 4 Ohm 85dB Black (Pair)
The AsciLab C6B are passive bookshelf speakers offering precise, powerful sound reproduction in a compact format. These 2-way speakers feature a...

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