Speakers 2 x 10 full range. Coral Flat 10. Coral has got to be one of the greatest full range driver makers ever, and these 1970's Flat 10 are near the top of their line. There are not many 10. Coral Speakers, Coral Flat, Coral Beta. The coaxial CX (6CX-501, 8CX-501, 10CX-501) series and also the full range series (4A-60, 8F-60, 10F-60, 12A-55. Apr 22, 2018 - I am liking them quite a bit, especially with the Lute, et al kind of music. They are Coral Flat 10s in their original cabs (OB in the future).They. Find great deals on eBay for Coral Speakers in Vintage Speakers. Coral Beta 10 Speakers Full Range in Original Cabinets. $1,200.00; Buy It Now. Jan 9, 2009 - Coral Flat 10's in nice open baffle cabs. Cabs and drivers for 750 bucks. Suggesting that you subject yourself to Coral full range drivers.:).