I just recived the LDM+ from Ebay and I noticed that there is an audile hiss from the unit through my ER-4P's even with no sorce hooked up. what could cause this and would the unit gain unit help this. Bass sounds great but I cant stand the hiss that gets worse as the volume is increased! Anyone...

Well I took the plung and am now in the world of the audiophile! I bought some ER-4P's to step up from my sony EX-51's and I have got to say, man you all are not joking when you talk about detail and the fact that the jump from a 40 dollar earphone to a reference level IEM is huge! I found...