Both gentlemen posting before me make excellent points. I would have answered in the same vein. It is a pity that Empirical Audio does not market the "Spoiler with Pacecar" any more. That would have been an excellent choice for your quest. However I feel it is worth while to follow though along Mrjstark's suggestions and do some research on the Empirical Audio website or get in touch with Steve Nugent directly. He is very helpful.
Happy hunting,
Detlof
Happy hunting,
Detlof