The following is what I have found so far.
FOCAL T90K
Impedenza Nominale: 8 ohms
Dimensioni: 92x92 mm
Diametro bob.mob.: 20.4
Sensibilita' 1w/1m: 91 dB
Potenza continua/programma: 10w/75w
Fs: 810 hz
Re: 6 ohms
FOCAL TC90TD5B
Impedenza Nominale: 6 ohms
Dimensioni: 60.90x53.90 mm
Diametro bob.mob.: 20 mm
Sensibilita' 1w/1m: 91.5 dB
Potenza continua/programma: 12w/75w
Fs: 1471 Hz
Re: 5.5 ohms
HT 264
26 mm tweeter with fabric cone. Voice coil windings immersed in magnetic fluid increase short term power handling capacity.
power handling (continuous/programme) = 100/250 W
resonance frequency fs = 810 Hz
impedance R = 8 Ohm
sound pressure level SPL = 92 dB (2,83V; 1m)
DC resistance Re = 6 Ohm
force factor BL = 2,74 N/A
voice coil inductance L = 0,047 mH
effective piston radiating area Sd = 36,5625 cm2
effective mechanical mass incl. air load 0,4 g
equivalent volume of compliance Vas = 0,007 l
total Q factor Qts = 0,61 (Qms=1, Qes=1,54)
voice coil diameter = 26 mm
mounting diameter d = 75 mm
overall diameter d = 100 mm
mounting depth (not countersunk) t = 50 mm
mass m = 0,66 kg
Looks like the FOCAL TC90TD5B wont work but the HT 264 might. Don't know anything about the HT 264, but that doesn't mean much, don't know much about any of this. Do either of these look acceptable? Thanks
Craig