I've always had great sound;for years. The icing came in 2 and a half steps. A near top of the line Sim2 300extra(h) projector---and---finally an electric screen. A hundred pounder over 100 inches long. I installed this all by myself---I guess we could call this the grunt labor factor. The half of the 2,&1/2 steps was running the motor control (sceen's) right next to my seat. ---This would normally be on the front wall,behind the screen. I hid the common in 'top of the wall' trim.The 12vt. trigger just adds to the price. Considering the ceiling had to be braced and all;-- pro installation would have been steep.
