|Nominal impedance, (Zn)|| |
|DC resistance, (Re)|| |
|Voice coil inductance, (Le)|| |
|Effective piston area, (Sd)|| |
|Voice coil diameter|| |
|Linear coil travel|| |
|Diaphragm material|| |
|Rated power|| |
|Free air resonance, (Fs)|| |
|Sensitivity, (2.83V/1m)|| |
|Mechanical Q-factor, (Qms)|| |
|Electrical Q-factor, (Qes)|| |
|Total Q-factor, (Qts)|| |
|Mechanical loss, (Rms)|| |
|Moving mass incl. air, (Mms)|| |
|Force factor, (Bl)|| |
|Equivalent volume, (Vas)|| |
|Compliance, (Cms)|| |
|Ratio BL/√Re|| |
|Ratio Fs/Qts|| |
Today (2019) Kharma company is continuing produce that loudspeaker model, but now with upgraded speaker drivers - Omega with Carbon-Rohacell-Carbon cones.
It's always interesting to see what speakers are used in the world's top loudspeakers!
The THD measurements at distance of 315 mm and voltage levels from 2.83 Volt to 8 Volt were carried out with High Pass Filter "on" (2nd order Butterworth type, 800 Hz cutoff, HPF2-800)
The tweeter sounds very good but at the retail price about $1900/piece it must have more even frequency response, higher sensitivity and preferably should have the voice coil former made of non-aluminium material and don't have ferrofluid in the magnet gap. So, my rank is only "3"