it was as perfect as could be,the stuff up was me not ensuring the flare was in correct position.

but i knew id have to make a practise one,before making a good one for lab12.

now il see how much performance i can squeese out of the lab12, im looking at 104db efficiencies and 1600cm ONLY mouth area and 299cm length that il have to cram in somewhere.

Also next time il get silicon sealant with a LONG straw on the end,so i can reach deep into the horn while one side is off!

More CAD /hornresping now..and compromises..and design conflicts.. :P..u know the story.

Cheers