biamping with 75 watt solid state and 18 watt tube amp.klipsch rp600m...t

klipsch is now a brand that tries to be all things to all people, for better or worse, spanning huge price ranges

https://www.walts.com/speakers/floor-standing-speakers/klipsch-floor-standing-speakers-klipschorn-ak... $15000/pr

www.ebay.com/itm/Klipsch-RP-600M-400-watt-Ebony-Bookshelf-Speakers-630-List-AUTHORIZED-DEALER/114309... $430/pr

we should clarify what the heck we are talking about i think... i have a set of 600’s in my garage, they are darn good for the $, but let’s get real ok?

How are you matching the gain of each amp to have same spl output ? buying something cheap for level is a big loss in fidelity .
parts quality needs to be first rate resistive network 
processor based lacks a lot especially the $200 specials .

When you change powers and gains between the highs and lows you are messing with the factory balance of the speaker tailored sound if you will so the results will be mixed at best.

Charles honestly I ordered the Klipsch just for fun , then return them, I got also curious to hear what wave guide does Darko and  Steve G got me so curious. As you know I do have the Omega 3i and the Omega rs8 both very good speakers musically speaking.The answer to your question, no edginess at all on my set up, because I do use Teo game changer ic, this tame them, probably my audio research tube preamp tame them too, Iam using Plinius SA 100 , power cord is VD nite, In terms of tone and purity with the right match I would say the Klipsch are way too close , coherence the Omega are way better, single drivers at good at this, On my system they are a bit forward not on your face, I set them a bit toe out, your numbe2 statement are all true.I love this speakers effortless to listen.I will hooked them on my viva 300 b when I get Biwire Speaker Cable, I also think they were benefited from double Biwire black II Tellurium Speaker Cables.On my system they play classical at ease, any music you throw at them they do it right at least for my taste.They are keepers.

Those jumpers that came with Klipsch will not do them justice to do their best. I would strongly recommend Biwire at least.