25mm Duel Concentric Treble 
Vifa's goal for the XT25TG-30-04 was to create a treble unit with a frequency response flat above 20kHz and with distortion levels far lower than normal. The design of the XT series represents a unique approach to high frequency design that has resulted in unrivaled performance at a price that everyone can afford.
Technical Data:
Faceplate Diameter:    104mm
Sensitivity (2.83v/1m):   91dB
Nominal impedance:   4 ohm
Frequency range:   1.5-40kHz
Free air resonance:   500kHz
Nominal power handling:  140w
Physical Sizes:
Faceplate diameter:   104mm
Overall depth (front of faceplate to rear of magnet):   45mm
Faceplate thickness:   4.2mm
Fixing holes:   5 x 4mm diameter on 92mm PCD
Cutout diameter:   75mm
Price per single unit excluding VAT