Hi,
Im not going to tell you what to buy and budget for. Thats up to you! but what to expect and how far things can be taken.
I always say budget speakers can really be pushed. And is where buying the best speaker you can afford statement falls flat on its face. i'll explain further.
Forgetting the fact you're buying another MA, so same house sound, you're just buying refinement and more difficult to drive speakers in this case 4.5ohm min dip @ 180 hz, theres a lot of sound at that frequency that's getting a little rough not many amps that could handle that convincingly especially at volume. Dimensioning returns? maybe! An unconsidered purchase? more likely and what you're going to need to do, to the rest of the system to get it back to your happy place and that WOW moment. This is why people upgrade so quickly and burn through money.
Having said that there's only so much they can do with a piston in a box. It's never a night and difference, it can be! But the jump has to be big not just a few hundred big but thousands big and it not all about the speaker in that price, hence my unconsidered statement above. Once you get to a certain point you have to start looking at the whole no just the singular. Amp along with the speakers.
So you're BX6 for example i'd quite happily stick a 4k-5k (not saying you have to spend that you could) amp up their backsides and the same on a source. Yes they would render those differences up to that price points easily and the amp would give massive scope for future upgrades, and ill say and say and say it again! power and efficiency are king and together it's god-like, People just don't realise how far budget speakers can be taken They would sound phenomenal when driven correctly and not many listen to properly driven budget speakers. Buying the best speakers money can afford absolute bull. it all need to be taken into account
You already had the efficiency and some power. TBH i would have left well alone. it was a well-considered system.
We're all guilty of it and not many admit it .But we all upgrade to what they think is "better" and we wish we hadn't i know i did and so long ago.
Sorry to say but the money would have been better spent on a completely new and more powerful front end All you have done is made your front end upgrade path even more expensive as id quite happily pair the 200's with 5-8k (again not saying you have to spend that but id certainly be looking at around the 3k mark amp dac combo). I'd say those speakers are lifers for you as long as you like the MA sound that is.
I know it doesn't really help you consider your next upgrade but I think in you case unless you have money to upgrade the rest of the system i might actually try to return the silver 200 if you can and not to late
Hope that make sense, writing this on the train on the way back home.