I bought these to replace my old friends; the UE Super Fi 5, that broke after 7 yrs due to MY mishandling.  I'll try to keep this short as SO MUCH has been written about these classic earphones!  I'm a longtime audiophile (30+ yrs!).  TT - Linn LP12/Lingo/Ittok IV/Ortofon Blaupunkt, CD - Arcam FMJ CD 23T, Amp - Music Reference RM9 (tube), Preamp - Audio Research LS15 (tube), Phono Preamp - Audio Research PH3 (tube) , Spkrs - Spendor S100, this makes up the bulk of my rig, along with racks, cables, and a few other toys.  I've got an Ol' School...