... DVD-R/RW,JPEG,support USB and card Home Theater system detailed specification: 1.Fully compatible with DVD,super VCD/ ... ,careful layout,debugging,checking the sound17.Materials:electron tube using the shuguang tube,3 inductance filter,audio coupling capacitor:WIMA, electrolysis ... , Admission output:high brass plated, RP:ALPS 100K. electron tube use 6N1. and GP15.18.Evaluation:pure and transparent sound ...