The summit of Kilimanjaro is a genre. It belongs to a rare class of amplifiers. It is a discreet, elegant, well finished, good quality and compact with a powerful battery. It perfectly meets my expectation for the following reason: I have hearing difficulties that hinder me to understand the dialogues of the film on DVD (not the revolver) unless I use headphones or in-ear headphones. The problem is that if I plugs into the headphone output of my amp, this automatically mutes the speaker of the chain. So there's more than me who hears, which is annoying for the other spectators! Fortunately there is an output analog sound behind the amp. This is where the E11 comes Kilimanjaro. It amplifies the sound output, too weak to directly attack a helmet, and everything is so perfect. Everybody hears it!