I can't recall Goodmans making speakers for HMV but it might have been after (or before) my time. What tweeters do they have? Are they the ones designed to be mounted from the rear of the baffle? Check the part number - DT3 or DT4? If so, I have a box of those somewhere, so if you need to replace the tweeters, let me know.
Hi Nero, do you still have those tweeters? I have recently bought a pair of Mezzo 3 and one of the tweeters is blown, it's a DT3. If you still have them I would be very interested in buying one.