So, there is no one who has heard these speakers? I am interested in them, but I wonder how they would sound with tube amps powering them. They are rated at 86db sensitivity and 4 ohms.
The designer says "
There are three main reasons your Carver amps will have ample power to drive Epsilons to high SPLs.
1. They present a very easy load on amplifiers because of their minimal part first order filters and benign impedance curve which has no low dips.
2. They sound louder because the attenuation of the sound wave during its travel through the air is less due to the greater dimensions of the planar loudspeaker drivers (membranes and ribbons). Theory stipulates that, with the exception of a small area close to the sound source called “near field”, the sound wave experiences a drop of its amplitude by 6 dB for any doubling of distance. In the near field, the attenuation is only 3 dB. The near field extends to roughly 3 times the dimension of a speaker. Although this is negligible for an ordinary tweeter (a few centimeters), the near field for a 2-meter tall ribbon tweeter reaches about 6 meters. A comparison of the loudness for two different loudspeakers of the same sensitivity according to the distance from a listener is presented in the following table."
Here is the review I refer to in my initial post.
Analysis Audio Epsilon Loudspeaker by Terry London (stereotimes.com)
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