Just thought I'd share my RP-600M journey with you guys.
Picked these up new by trading in some old Klipsch speakers after reading and seeing nothing but positive reviews. Sadly after listening I felt the stock speakers were not quite up to par. Certain sounds in the upper registries were too pronounced for me. So many reviewers had said these were not fatiguing, almost even smooth. I started to think I was crazy until I stumbled upon Ron's review on his YouTube channel New Record Day. Man did he get it right. Sadly I did not see his review before the purchase. But wait, there's more, Ron suggests a fix created by non other than Mr Richie! Am I saved? You bet!
I ordered the upgrade shortly after and couldn't wait for it to arrive. It took me about 3 days to assemble since I had a number of other things going on that interupted the process that weekend.
I chose to go down a slightly different path and keep the stock terminal setup with the 5 way binding posts and biamp capability. Certainly not trying to put down the tube connectors in any way, just personally wanted to keep the stock form. Thought I'd share my layout in case anyone else feels like doing the same. All of my connections were made below the board, the tweeter and woofer circuits are completely separate from one another.
Anyway, as far as the end result, I couldn't be any happier. Danny took a speaker that initially gave me some buyers remorse and turned it into something fantastic. I did some A/B measurements to see if what I thought I was hearing was true. Danny's design plays far more flat and cuts down on the peaks that made this thing difficult to listen to without the upgrade. I could share that comparison if you want to see it, but it's an in room measurement and I don't want to do this upgrade any sort of injustice if someone was to interpret that as true response.
If anyone is on the fence about buying this upgrade I can say without a doubt for me it was worth every penny. On top of that, it was a really fun project and a great intro into speaker modification. I hope to build one of the full kits at some point when I am ready to make room for yet another pair of speakers in the house.