what kind of measurements you need ???
If it's just information about tweeter :
R2904/700000
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Characteristic sensitivity (2.83V / 1m) : 94.5 dB
Recommended frequency range : 2 - 40 kHz
Free air resonance frequency, fs : 520 Hz
DC resistance, Re : 3.0 ohm
Voice coil inductance, Le : 0.01 mH
Effective piston area, Sd : 5.6 cm²
Moving mass incl. air, md : 0.30 g
Force factor, BL : 2.8 Tm
Excursion, lin./max. : ±0.20 / ±1.6 mm
Voice coil diameter : 25 mm
Rated power handling : 160 W (12 dB/oct.
cross-over at 2.5 kHz)
Net weight : 0.42 kg
the rest is here :
http://www.tymphany.com/prodscanspeak.php
I have used the 2904/70000 but the 2905/990000 is much natural
look here :
http://www.diyaudio.com/forums/showthread.php?s=&threadid=61725