Isn it normal to use Ferrofluid to help keep a tweeter voice coil cool?
Yes, Ferrofluid is essential in maintaining an appropriate running temperature. However, there are many different grades of fluid on the market and they significantly affect the performance of a tweeter. Epos has chosen a new grade of Ferrofluid, to alter the dynamic impedance of the Mi tweeter, extend its low frequency response and smooth-out its supersonic performance.