I'm also thinking about cheaper solution: JBL GT120 sub (SVC 4ohm, 250W RMS) with some of JBL amps. I can choose between GTO301.1 (200W @ 4ohm) and GTO75.2 (290W @ 4ohm, bridged). Which one do you think is a better choice?
Unfortunately it seems that DVC GTO120 is not available in Europe, if it was I could wire it in parallel with GTO301.1 (294W @ 2ohm).