Talking of Corals. Here are the exquisite, top of the range Coral Beta 10 ten inch drivers.



And in their horn cabinets, with super tweeter.



Not an easy build, but it can be done.

Here are mine, built many years ago.



102db sensitivity and superb sound! I should have kept them.

Unfortunately, Coral drivers have been out of production for very many years.

The nearest modern equivalent are the Fostex range. Have a look at this UK supplier, Wilmslow Audio, here: http://www.wilmslow-audio.co.uk/fostex-56-c.asp