I got a pair of Beyer DT250 pads from Sweetwater....they come with a piece that can be fitted behind the AGG pads on the cups of the S500/S400, put the 840 pads over.....I used that as a template.....complicated and $18, so not cheap, but worth it for me. Transforms the S500/S400 to comfortable, great sounding circumaural phones.....full size headphone soundstage/separation, balanced sound throughout, with glorious mids and vocals, others may not think it is worth the troube and cost, but I only paid $23.99 for the S500/S400....probably not for everyone but I am a fanatic!






































