I think I am pretty lucky in that all my amplifier speaker matches sound just wonderful.
My main system has a Mcintosh C-15 Pre amp and a Mcintosh MC 162 amplifier. They sound fantastic driving a pair of Definitive Technologies BP 10 , and a pair of Polk powered subs. I mostly listen to Classical on a local NPR FM station using a Mcintosh tuner. My trusty 18 year old Cal Audio Labs DX1 also matches well with the The source components and speakers.
I realize many others may not consider the BP 10 the best for audio, but I really like the Bi Polar treatment it brings to the sound. So much so that I purchased a used pair of BP 10 for $ 250.00 for another room. I am pleased to say that the sound from my at least 15 year old Onkyo HTR ( TX SR 303 ) sounds great with the Def techs as well, as long as I don’t push the volume too high. This is a versatile receiver with 5.1 analog in for my Oppo Blue Ray player, and it has coaxial digital in that I can connect directly from the cable box. The FM reception is excellent using a powered indoor antennae . I even have a small Phillips powered sub I picked up for $ 20 , which adds a little bass at low volumes. It sounds great for late night, 50db listening level . This is what I use for TV viewing and broadcast movies , with a Def Tech center for dialogue.
The original JBL L100s that I purchased new in 1973 are in another system, and they also match up well with a Marantz SR7000 receiver , with a great FM tuner and enough power to get the JBLs active . This is my rock and DVD concert system. I also have another OPPO hooked up for CD and DVD listening.Despite their flaws, the JBLs just push out a driving , invigorating sound up until about an hour and a half , when fatigue sets in. I like the Def Techs because I listen to them all day and into the night, and I never tire of them.
So over the years of accumulating different equipment and speakers, rarely getting rid of the old( I have other stuff , like I am sure others do as well, that I don’t use) , I’m not motivated to add or make any changes. I actually have a Mcintosh C 28 pre that needs major work, but I really don’t have a place to put it without having to purchase another power amp and try and integrate it in. I might just get it done and hold it as a spare. But I am afraid once it is done I will be tempted to buy an amp. Then I have to make a decision about preowned, new, etc. And where to put it.