Hello,
RH = Reflex Horn. The old nomenclature was the 118VH stood for "Vega Horn", the 18" C-V in the cube. the BH= bass horn. Good Hunting dood! And what are you going to light them up with?? I hope ya got an old Coliseum bass amp. I have a set of catalogs, 1969, 1972,73,74,75 plus a 1972 and 1973 price list. Currently have the following Sunn: Model T(1973 first gen), Concert bass, Coliseum bass, Coliseum, lead, 3 Sunn 215S cabinets all loaded with JBL K-140 15". Mostly play thru my acoustic 370 and 2 Acoustic 301(18" folded horn) cabinets lately.
Want to get another 1973 model T cause I can't find any 2000S's in decent condition.
Peace and Happiness to you. Sounds like ya got a great rig mister.
sunnmon