Hi everyone. Has anyone used a tempest single or duel sonotube with a set of klipschorns? Can the tempest sonotube keep up with the quick bass of the folded horn design of the klipschorn? I have a set of klipschorns and would like to add a sub to them, thinking of making my own tempest sonotube mayby like the one Pat sun built on the sonotube link page, the single tempest one he calls the sonotube 2.I cant find any good plans and picturs of the duel tempest can someone help me out here? What plate amp should I use to. THANKS.