2 x tannoy 3149 / 3169 coax dual concentric speakers vintage 1970ies lrm sgm. i‘m selling a pair of tannoy 12 inch dual concentric coaxial speakers as used in the famous little red monitor and super gold monitor studio speakers from the 1970ies. i have more of them and build them into large horns ( see last pic as example, this auction is for the drivers /chassis only of course ) , 68 litres and 130 litres cabinets with great results. i built the 15xx modified crossover from hans hilberink‘s tannoy site for them which fits great. the speakers are in good and fully functional shape. the slightly different colors of the cones i can only imagine comes from different serials/manufacturing years . or one of it might have been reconed somewhere along its lifespan. i dont know , but it doesnt affect sonic quality . please look at the pics and if you should have any questions dont hesitate to ask.