A DR. Z RX JR, I was looking for an 18 watt single channel amp with a really good MV. The amp sounded great until I introduced the MV. Everything I purchase will be put up agains the SD30, it really is a benchmark for me. The SD30 amp will do anything you ask it to, but I would like a smaller setup. I have been toying and asking Jeff Bober a few questions about the Studio 2 and may still try it out if I can find one used at a good price. What I think I would rather have but cannot find one used yet is an East 18 and a 1x12 or 1x10 ext cab. The Dr Z and the Soldano, both made my ears ring almost instantly and when you play Hamers with Sustainblocks not just anything works.