when i had my house full , family, i had to buy thick sheets of cork and isolated a room all and even put a thick wood door opening for the outside and it ended the shouts of my better half and the noise produced by a young girl and a boy(already in is teen years ) than i noticed coming from my first born son a sound that i recognised, it was Dead Kennedy´s last record not sure if it was a compilation or re-recorded songs and maybe one or two new or maybe not , but was a pleasure to my ears they even move when i wanted them to, "Give me convinience or give me death" and again shpouits"tell your son to put the music down" i replyed, isn´t your´s?have to check it, the 70´s were confusing"and i went to his room and said, but i notice a kind of fear in his eyes and told him"stop it, we have to go! "so we went to his grandfather house" father, yes son, i want a better system for jr. " well he was with a expression of happiness, i bring back to my home some HPM-1100 , a SX-1050 ,SG-9500 a PL-530 with a shure cartridge the M95 and told him to better sound always put loudness on , the tone controls you put them wherever you feel like to" and because i had isolated a entire room ,i couldn´t hear what happened in the next hours and days.