Old doesn't mean bad ( ER4PT , HD580 Precision ) : r/headphones
Sennheiser Hd580 HD-580 Headphones | Reverb
Sennheiser Replacement Headband (9QKXAU59F) by tcejbo
Amazon.com: Gvoears HD600 Earpads for Sennheiser HD650/HD600/HD660S/HD545/HD525/HD535 Headphones, Ear Cushion Replacement Also fit for Massdrop X HD6XX/HD58X and HD580/HD565 Jubilee Headphones(Velour) : Electronics
Sennheiser HD580 Precision Headphone Open-air HP Black Very Good | eBay
Sennheiser HD 580 Precision (Gear & Review) - Explorations in Audio