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AsciLab F6B
Compact 2-way with a passive radiator for deeper bass.
The F6B uses the same waveguided 1" aluminium tweeter and 6" fibre-cone woofer as the F6Bs, in a deeper cabinet with a 5×8" passive radiator at the back. The result is bass down to 46 Hz (−6 dB) from a speaker that still fits on a shelf or a desk.
CHF 750 per pair
Incl. import & VAT
Delivery quoted separately, or free pickup in Lutry by appointment.
Black or white.
Black
What it solves
Engineered to deliver accurate sound in real rooms, not just anechoic chambers.
Waveguided tweeter
The waveguide and phase plug control dispersion and reduce interference, for a flatter response on and off axis.
Passive radiator, not a port
The 5×8" passive radiator extends the bass without the turbulence and chuffing a port can produce at high volume.
Easy to place
Its depth is optimised to sit on a shelf or a desk; leave about 10 cm behind it for the passive radiator to move.
Specifications
| Type | Passive 2-way with passive radiator |
| Tweeter | 1" aluminium dome with waveguide |
| Woofer | 6" fibre cone |
| Passive radiator | 5 × 8" |
| Crossover | 1 kHz |
| Sensitivity | 84 dB (2.83 V / 1 m) |
| Impedance | 4 Ω nominal (minimum 3.5 Ω) |
| Frequency response | −3 dB at 56 Hz, −6 dB at 46 Hz |
| Recommended amplifier | 50 - 125 W |
| Dimensions (H × W × D) | 400 × 203 × 265 mm |
| Weight | 7.5 kg per speaker |
| Finishes | Black, white |
Specs from AsciLab's website, checked October 2026.
What's included
- Pair of F6B speakers
- Woofer grilles
Frequently asked questions
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