Swans (HiVi-Research) F-6 Kevlar/Paper Bass-Midrange

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Swans (Hifi-Research) F-6 Kevlar-Paper

Key Features:
  • Light and extremely rigid cone made from Kevlar/paper composite;
  • specially made high loss rubber surround;
  • shielded double magnet motor structure;
  • high power handling aluminum former voice coil;
  • central phase plug;
  • high-density aluminum die-cast basket.
  • The design of F6 has been optimized for balanced and dynamic low bass reproduction in small or medium vented systems. Midrange clarity and tonal balance is remarkable.

F6 utilizes a newly developed matrix of Kevlar and paper fibers. As a result, the cone weighs less, is more rigid and has an improved dampening factor over conventional Kevlar materials. The back of the cone is hand coated with a special dampening compound to further maximize performance stability and control of structural resonances. The driver utilizes a central phase plug to avoid air compression and internal air volume resonance. The plug improves frequency response and dispersion as well. The aluminum former voice coil and air transparent spider contributes to the linear operation of the transducer at high power levels.

The massive aluminum die-cast basket has been developed to minimize parasitic structural resonances.

The shielded magnet structure allows the F6 to be easily incorporated into audio/video applications. The driver may be used in a small closed box as a bass-midrange unit, when a subwoofer is employed.

Recommended crossover frequency region for two-way system design is 2-3 kHz.

Short data

Usage as Bass-Midrange
Power Handling 45 Watt
Impedance 8 Ohm
Frequency from 45 Hz
Max. Frequency 3 kHz
Sound pressure 88 dB


Overall dimensions 174 mm
Baffle cutout 149 mm
Depth (Total) 95 mm
Frame Material Aluminium diecast
Membrane Type Cone
Membrane Surround Rubber
Membrane Material Kevlar / Paper
Voice coil Ø 25 mm
Voice coil height 14.5 mm
Voice coil material Kapton
Air gap height 6 mm
Magnet Ø 106 mm


Resonance fs fs: 45 Hz
Mechanical Q Qms: 3.91
Electrical Q Qes: 0.38
Total Q Qts: 0.35
Equivalent Air-Volumen Vas: 16.4 Liter
DC-Resistance Re: 6.5 Ohm
Coil Inductance Le: 1.6 mH
Mech. Compliance Cms: 0.658 mm/N
Moving Mass Mms: 18.3 g
Max. Excursion +/- Xmax: 4.3 mm
BL Product Bl: 9 N/A
Membrane Area Sd: 139 cm²
Sound pressure dB: 88 SPL



Technical Dimensions

You receive a 2 year warranty from the date of purchase for all of our high quality hifi-products.

If you observe any problem while using the product, you have the possibility to contact our friendly service team.

You can also easily manage your guarantee concern – without being obliged to – under the section My Account.