You're probably talking about SP-7s. I have a pair and they're not bad. I used to work for Nak in the early 90's when they sold them by the pallet. The drivers were made by a Japanese company named Primo, who also made Grado drivers, according to everyone at Nak back then anyway. The cords can go "intermitant, and they can get kind of loose on your head, which is usually fixable if you have very small phillips head screwdriver. I replaced my pads with Grado SR-60 pads.