just wanted to echo the great customer service from CSS... I got caught in the last flounderings of Adire with their Tumult Mk 1 subs (1st production run version) which had really wonky specs. What was supposed to be a dream sub project could have been a nightmare, but wasn't... due entirely to Bob Reimers tremendous personal integrity and desire to see his customers happy.
In the end, I've got a great DIY sub (using quad Tempest Classics instead of a Tumult), and I would purchase DIY stuff from CSS in a heart beat.
Bob is a gentleman of his word, at least he's proven so to me.
GB