Ok I meant to be sobering but not depressing. Maybe realign expectation with reality. I actually disagree with the premise that amplification within its limits all sounds the same, I feel tonal character changes among other differences. Detail, bass, soundstage, treble, but it’s more subtle than people lead on. Hegel makes fantastic gear, but its straight down the fairway neutral so picking it apart from other amps can be difficult but they’ll match well with anything and the 390 can drive literally anything so it’s an item you can keep forever. But the Rotel stuff you have is no slouch either. You’ll see when Hegel arrives and can make your own conclusion on value.
There is also nothing wrong with your B&Ws per se. It’s just not my cup tea, I find the treble a bit hot and at times they can sound artificial compared to other speakers. They may work well in your room and with your music so if you like them, keep them, it’s certainly easier to change gear than speakers. But if you were going to make an upgrade that’s where I’d do it to get the most bang for your buck. I’d even look further up the B&W lineup if you really like their house sound. Please don’t be depressed, but manage expectations and don’t feel compelled to spend a certain amount of money or change everything at once.
It’s digital gear that I have the hardest time justifying. I’ve had a lot of stuff in my system both dacs and streamers, so I’m not talking out of turn. Maybe there’s something out there that will mop the floor with the Node but I haven’t come across it. I did say buy on features and the Eversolo has a really nice display and is a pretty good looking unit. I think it also decodes MQA although Tidal seems to be abandoning its MQA files in favor of flac.
One last thought- you could look to add to your vinyl collection and upgrade the player, arm, needle etc. Analog sources are much more flawed spec wise and the differences can be apparent, so maybe not to the same extent as speakers but depending upon how much time you spend listening to vinyl it maybe worth investing there as well. I’m not the guy to ask though, I only stream. Don’t even have a cd player anymore.