I'm reluctantly selling my AKG K1000 earspeakers cw stefanaudioart 4 pin - 4 spades cable. In VGC. I'm asking £750. If your interested you'll already know about them. I use a Fujitsu Eclipse A502 amp with the K1000s. That's not for sale. Its a stunning combo. Selling to help fund a change of speaker and MC cartridge. They need to be connected & driven like conventional loudspeakers not through a headphone socket. Alternatvely, I believe that a specially built Woo Audio tube amp or Almarro tube with a special 4 pin output socket can also drive them. AKG approved its own amp too but I've only ever come across one of those. Check out head-fi and the web for more info. This is very special kit. Inc factory case and manual. Piccies and demo available.