I picked up a pair of 558's last weekend and absolutely love them and I don't even have them amped yet. I have burned them in for about 25-30 hours now and they are sounding better now but the bass with certain genres of music is only good at higher volume, I am tempted to remove the foam because I have a best buy warranty so it wont matter if I lose the Sennheiser warranty, Is there a way to put the foam back on if I don't like the way it sounds after I remove it?
Will I lose any sound stage or any quality if I do this mod? If I have to lose any accuracy that will change my mind. I know I need an amp but I have no idea what to get considering my budget is so low right now.