I agree with below to say that HP is very / too little known. Little info about it on the web
I use it as a medium in a Hi-Fi 3 way with a Beyma 12B100R (cut at 110 Hz) and a tweeter VIFA. While the active amplification.

SOUNDS

Personally, I find it rather bland, very detailed and never aggressive. But I have not tried everything, obviously.
Very good image in both width and depth.

OVERALL OPINION

I second flight for a little over 6 months. Like all HP, lapping arises.
Sensitivity (+ / -93.5 dB) very valuable.
HP very polyvalant can be used in Stereo as PA.
More powerful, strong and above all less expensive compared to Scan Speak that I had used before.
I highly recommend it.