Soundstage and explosive dynamics?

JBL Synthesis horn speakers with large woofers will give you a wide stage and fast bass. With that being said the listening room plays an important role. Demo what you can before making any big decisions. 

Damn hard to find used at a reasonable price. I’ve posted a few ads over the years looking for a pair of IB2 and MB2 with no luck. Awesome speakers with the right gear!

The bar is set very low if Focal 936’s (a speaker I know better than most) are your reference in a conversation like this. I suggest getting out and listening to more speakers. Maybe you can find a fellow member in your area that has gear like most have mentioned in the thread. If you could find anything Shadorne has recommended to demo it would fit the bill.

There is no doubt all of the fantastic speakers you listed have very good bass. The thing is the OP is asking for "explosive" dynamics with force and surprise. Even my 200lb 6ft tall floorstanding speakers with 4 x 8 inch woofers are not capable of startling or surprising me, if anything the bass response is expected and balanced. My recommendation of large used JBL synthesis has no personal bias or ownership experience behind it, they just happen to make a speaker that could tick every box for the OP. Any speakers that have shocked or downright intimidated me have been speakers with large, usually high efficiency paper woofers. Spatial M3 Turbo S in a large room and a powerful amp are capable of hitting you in the chest bass but IMO fall short with the refinement the OP might be looking for. I don’t feel there is much depth to the soundstage compared to a something like an ATC. Clayton’s higher end models may very well be the full package. With a less than 10k budget options are limited.

The horn misconceptions reek of inexperience. Comments like horn speakers don’t image well is proof enough. They can do the disappearing act as well as any other speaker. This is why the internet can be a dangerous place to look for audio advice.