Greetings. I'm look for advice from everyone who is much more knowledgeable on audio equipment than myself. I currently have a Pioneer SA9900 pushing 2 Klipsch KLF 30's. I know the KLF 30's are rated at 200w and the 9900 is somewhere around 110w per channel. The speakers sound fantastic, but I'm curious if they can sound even better if I choose a different amp. I've been researching various vintage Marantz amps and I would like any recommendations on whether I should stick with the 9900 or upgrade to something else. I'm also not opposed to investing in a recent model amp if it will provide results. Also, I would eventually like to purchase another set of of Klipsch KLF 30's and run 4 speakers if possible. Whichever amp I go with will only be used for music, and if it matters, I only play vinyl (Technics 1200 m5g). Any advice would be much appreciated. Thanks!