Here we have an unusual lot a Rare pair of Vintage 1970's Teac HP-103 Dynamic Stereo Headphones Imp 8ohms

These must of been a prototype to follow on from the HP-102

I can find no record or information on the net about these

Does anyone know anything or seen another pair

See pics usual wear on pads

These are a very big fit.

Working order.

Great sound reproduction.

Amazing 70’s technology