12 inch full range from the 60's./ This is from the stereo period and was used for the consumer system. Since the curved cone's voice coil is small, it has a wide range and have an excelled music nature. Best quality.
Unit that is used for the original monitor speaker from EMI. It was used as a compact monitor system in the 60's at the recording studio in England. The unit functions as a 3 way since it is the coxial unit of 34cm x 21cm woofer with the central part, partly made out of alminum and 8 cm cone tweeter. Creates a lively low sound. Several same units from the Decca's Decola Console is used. Reference from StereoSound Vintage Unit pg 174.