Appreciating quality sound shouldn't mean going to audio-maniacal lengths to obtain it -- spending thousands on equipment, kidnapping select members of the Boston Symphony Orchestra, etc. For professional fidelity at a reasonable price, get your hands on a pair of Shure SE110 earphones.
Started as a microphone manufacturer in 1925, Shure's projected everything from presidents delivering inspiring addresses, to Jay Leno addressing inspiring zookeepers. The SE110s are their superbly-crafted entry-level earphones, equipped with a specially designed balanced microspeaker that provides unparalleled clarity at both ends of the register -- optimizing both bass-driven hip-hop and the treble-y squeaks of your vintage boys choir recordings. Just as crucial's the 110's Sound Isolating Design, with sleeves that'll fit snugly into your ear to block out 90% of all ambient noise, from the drone of traffic, to the drone of your boss.
Of course, none of this matters if the connection between your cables and speakers is compromised, so the 110's thick layer of reinforcement'll save your Shures from prematurely wearing out -- unlike the kidnapped oboist who is right now vainly attempting to claw his way out of your cellar.