Looking through  a group of manuals and repair manuals on some of my older audio gear, I was surprised to find the original manual for the above headphones. I also found the very skimpy manuals for the Stax SR-Gamma 'phones and the SRD-7/SB and SRD-6/SB adaptors (1 manual).   The full HD540...

Hi all, I recently joined this fantastic group, why so late, I don't know. I've been a headphone user for years, and have a problem with the adapter portion of a Stax SR-Gamma/SRD-7 combo that I bought new in the mid 70's. The foam has disintegrated on the Gamma, but that isn't a big issue. I...