After enjoying my SVS PB12Plus/2 for almost a year now, I want to try my hand at a DIY sub, and have bought a used Tempest driver. I have really wanted to try a sealed sub and have been reading today about Linkwitz Transform additions to the Rythmik amps. I'm wanting to come "reasonably" close to the SVS's output and extension. I have some questions: Should I use the Tempest with a Rythmik amp? Which one? Should I sell the Tempest and get an Avalanche or Atlas 15? Are the servo amps preferrable to the LT amps? What size enclosure should I go with a Tempest or Ascendant driver? Will one size work with both so I can upgrade to an Ascendant down the line? Any and all help very much appreciated.