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[GRADE S] ASCILAB C6B Bookshelf Speakers 250W 4 Ohm 85dB Gray + White Waveguide (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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Find here a selection of useful and/or essential accessories for this product. These are specially selected by the Audiophonics team according to the characteristics of the product.
Refurbished product - Grade S
Product in perfect condition. Original waveguide modified with a white waveguide (ref. 20937) in our workshop
AsciLab C6BBookshelf Speakers 250W 4 Ohm 85dB Gray + White Waveguide (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. 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.
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.
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.
Technical characteristics
| Specifications | |
|---|---|
| Product type | Passive speakers |
| Design | 2 way |
| Tweeter | 1" alumina ceramic dome tweeter |
| Woofer | 6" alumina-ceramic woofer with aluminum chassis |
| Design | With passive radiator |
| Finish | Mate |
| Crossover frequency | 1.1kHz |
| Sensitivity | 85dB @ 2.83V / 1M |
| SPL Max. (Full-bandwidth) | 99dB SPL |
| SPL Max. (>100Hz) | 105dB SPL |
| Frequency response | -3dB @ 50Hz / -6dB @ 41Hz |
| Impedance | Nominal 4 ohm (min 200Hz / 2.6 ohm) |
| Recommanded amplification | 50W - 250W |
| Connection to speaker terminals | Banana 4mm Bare wires Forks |
| General | |
|---|---|
| Dimensions | 40 x 20.3 x 26.5cm |
| Weight | 8.4kg/speaker |
| Color | Gray White waveguide |
| Package | 1x Pair of AsciLab C6B speakers (C6B grilles are sold separately) |
| Color | Gray |
| Impedance (Ω) | 4 |
| Efficiency / Sensitivity (dB) | 85.0 |
| Lowest frequency (Hz) | N/A |
| Highest frequency (Hz) | N/A |
| Power (W) | 250.0 |
| Number of ways | 2 |
| Number of loudspeakers | 3 |
| Refurbished Grade | Grade S |
| Speaker type | Passive |
| Speaker form factor | Bookshelf speaker |
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