thank you for your answers.

the reading of WIKI is always instructive.

there for the moment, I still did not find the solution with my problem.
Clux east on is technically functioned, because it has just been seen by Shawn Fogg, that I thank much.

I still test and I recontact you for you communicated the result

Meridian : 861v4 /800v4/HD621
Earthquake Sound Cinenova Grande 7 + 2 x CLASSé CA-M400
Cabasse : Passific 3 ; Ambrose 2 ; Baltic 2 ; Sirocco + 2 x Earthquake Sound SuperNova MKVI 15" Special Version ( 1500w).
Chinoppo M9201 + GIEC 5700 + Nvidia Pro
JVC N7 + HD-Fury Wrroom .