I have extensively demoed (or owned, in bold) the following headphones:
[size=11.0pt]AKG K812, K712, K702, K701, [/size][size=9.75pt]Q701[/size][size=11.0pt], K550, K271, K240 Studio, K77; Audio Technica ATH-M50X, [/size][size=9.75pt]ATH-M50, ATH-M40X, ATH-M40fs[/size][size=11.0pt]; Beats by Dr. Dre Executive, Pro, Solo HD, Studio; Beyerdynamic T5 P, [/size][size=9.75pt]DT 990 Premium 600 ohm, DT 990 Pro,[/size][size=11.0pt] DT 880 Premium 250 ohm, [/size][size=9.75pt]DT 880 Pro, DT 860[/size][size=11.0pt], DT 770 Pro-80; Bose Quietcomfort 15, Quietcomfort 3, Quietcomfort 2, AE2; [/size][size=9.75pt]Creative EPH-630[/size][size=11.0pt]; Denon AH-D7100, AH-D600, AH-D340; Etymotic ER-6; Grado PS500, Grado GS1000, RS1i, RS 1, RS 2i, RS 2, SR325is, SR325i, [/size][size=9.75pt]SR225i[/size][size=11.0pt], SR225, SR125i, SR125, SR80i, SR80, SR60i, SR60, iGrado; [/size][size=14.6666669845581px]The House of Marley Redemption Song;[/size][size=11pt] [/size][size=9.75pt]Koss Porta Pro, KSC75, The Plug[/size][size=11pt], UR10; Phonak PFE (with gray filters); Sennheiser HD 800, HD 650, [/size][size=9.75pt]HD 600[/size][size=11pt], HD 598, HD 595, HD 558, [/size][size=9.75pt]HD 555 (also modified to HD595)[/size][size=11pt], HD 380, HD 280, HD202, [/size][size=9.75pt]HD201[/size][size=11pt], PX 100, Momentum On-Ear, Momentum Over-the-Ear; Shure SRH1540, [/size][size=9.75pt]SRH940, SRH840[/size][size=11pt], SRH440, SE835, SE535; Skullcandy [/size][size=9.75pt]Aviators[/size][size=11pt], Crusher, Hesh; Sony MDR-X05, MDR-XB500, MDR-7506, MDR-V6, MDR-55, [/size][size=9.75pt]MDR-CD30[/size][size=11pt] (I almost forgot about these; purchased at a garage sale about 10 years ago); [/size][size=9.75pt]Superlux HD681, HD688B[/size][size=11pt]; [/size][size=9.75pt]Ultimate Ears TripleFi 10 (family member owns them)[/size][size=11pt]; Ultrasone HFI-780; Westone UM Pro 30, UM Pro 20, UM Pro 10.[/size]