Ran across this forum looking for answers and decided to join. I work on a fair amount of Klipsch and currently my shop speakers are MCM 1900 two three way stacks and a pair of KPT-456's with a couple of EC TL440 subs. Don't listen to them all at once but kind of shift them around depending on the day. I have an interest in learning more about analyzing sound like using REW and the UMike. I also have begun machining K-77 tweeter drop in replacements. I like rebuilding crossovers and finding the difference it makes.