I am posting this again in hopes of finding source of silver K141 discs for each Apologies for long delayed response. I use headphones with two stereo systems: a 1970 Pioneer SX9000 (original owner), a pair of Bozak B201 Sonora bookshelf speakers; McIntosh MCD 7000 CD player and Dual 1229 TT...

It’s taken a while to pull it together, and I use it all. I’ve been fortunate to have a great technical guide. Still have my first piece bought on R&R in 1970: a Pioneer SX9000..looks and performs like it just came off the production line.

Thanks for your response. I use them with several systems: a mid-40s RCA-12222 tube amp with a Benjamin Miracord 50H TT (EAR 834P phono preamp); a 1949 Altec Lansing A-323B tube amp with built in pre-amp, and Thorens TD150 MKII AB TT; and a Mac MA5100 with Dual 1229 TT...about to add phono...

I am the original owner of a pair of AKG K141s purchased in Asia while in the Marines. To my ears they still sound excellent. However, given their age is some kind of maintenance required? The foam around the war cups is excellent with no dryness or degradation. I know of a restorer in...