Tigeman,the JL marine speaker are not made of foam just to keep things even.Foam sucks
having said that concert level speaker are not really the best sounding speaker's loud yes but usually harsh allot of people confuse harsh bright sound that may be clear with sound quality.
Studio monitors however are purely focused on SQ. Since you were an old IASCA guy would you recommend a pair of wave guides? That and I believe the JL W5 won allot of IASCA trophies back in the day, but that was long before JL was a known name, back when phoenix gold was considered the best!
just a little nostalgia