27TDF is a High Definition precoated fabric dome tweeter with a wide, soft polymer
surround.

Sonotex precoated fabric diaphragm with high consistency and excellent stability
against variations in air humidity Sonomax surround for low resonance and excellent mechanical linearity.

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.

Technical data:

Long Term Power Handling: 90W*
Short Term Power Handling: 220W*
Nominal Impedance: 6 Ohm
Voice Coil Resistance: 4,8 Ohm
Recommended Frequency Range: 2500 – 25000 Hz
Characteristic Sensitivity: 91 dB (2,83V/1 m)
Free Air Resonance: 900 Hz
Voice Coil Inductance: 0,05mH
Effective Piston Area: 7,5cm²

* via High Pass Butterworth Filter 2500Hz 12 dB/oct.