The initial project had to respect a precise specifications: Create an ampli of the smallest possible size the reasonable weight, and delivering a sufficient power ( + of 100w) and a strong acoustic pressure (+ of 120db), while respecting at best the acoustics of one Electric guitar, and door exchanges of the guitarist... Thanks to the experience and to the use of the various discoveries and the certificates belonging to him, Ken Kantor and sound Team developed, realized, and produced a new concept of ampli which can answer the main things Needs of the guitarist: repetitions, game in the helmet, Gigs and concerts...