Loudsystem wont return my PMs for a quote on an eclipse 5000 and 4000. So i am giving up on him so i have the eclipse 4000 in my range. Alpines seem ok but i dont know about that low pre-out voltage, will i be seing negligible decreases in SQ because of it? and the other question i have is in regards to mounting angle. If i mounted a cd player such as the alpine vertically would shit get fucked up? It isnt a must to mount vertically but if possible that would give me another option.