27TFF is a High Fidelity precoated fabric dome tweeter with an integrated wide
surround.

Sonolex precoated lightweight fabric diaphragm with high consistency and excellent
stability against variations in air humidity.

Voice coil windings immersed in magnetic fluid increase short term power handling
capacity and reduce the compression at high power levels.

Optimally damped cavity in the pole piece controls and slightly lowers the
fundamental resonance.

The chassis is precision moulded from glass fibre reinforced plastic, and its front
design offers optimum radiation conditions.