Types of speakers to create nightclub style sound?


Admittedly, this may come off as an unsophisticated post for audiophiles, but I'm seeking advice nonetheless. 

I have a house with an open floorplan and love entertaining. I'm looking to create the auditory feeling of a high-end nightclub at home, as opposed to having a setup with the goal of creating a single ideal listening point. After traveling to Ibiza and hearing some of the world's best nightclub sound systems I fell in love with how they bathe you in sound. Since I can't fit a Funktion One Dance Stack in my home, I'm curious as to what I should look for in the home audio realm to recreate that feeling of filling a room with powerful sound that isn't super directional. 

With a total initial budget of about 4-6k (1k - 3k for a pair of speakers), what qualities should I begin looking for to create this sort of system? I'm thinking used higher-end speakers might be a better solution. 

I've noticed a few different categories of sorts: some speakers have a single driver with a wide-range, like the Zu Audio Soul, while others have several for different drivers, like B&W 603. I absolutely loved the line-source sound from Martin Logan ESL speakers, but their directionality is exactly the opposite of what I want. Moving 2 feet to the left or right of their line of fire made it sound like the music was coming from the next room over. I live in Los Angeles, so there are plenty of used, good quality, higher-end speakers circulating in the marketplace. Can anybody offer a little guidance to narrow my search for what sort of speakers/amp combination might best accomplish this? 
perplexy
The best PA speakers generally have fairly wide high frequency dispersion these days, and if you're using something small-ish like little powered "phased array" type boxes (common in newer installations as the lower profile makes them easier to fly above the crowd, stacked or otherwise), and a couple of good powered subs on the floor someplace, you're in there...all controlled by an iPad from anywhere in the room...you're likely to be surprised at the overall sound quality of this stuff.
Maybe I missed it, but I didn't see any mention of room size as I scanned this thread.

I've seen some good suggestions:

Klipsch
Altec
Cerwin Vega
MTX
Ohm
... and a few others.

Pretty much any decent sized box speaker with a minimum 10" woofer works well.  Mount them in the corners horizontally at the ceiling to get bass gain.

I did this at my previous home.  Some neighbors loved me... and others hated me.

I also have this setup, (on a smaller scale), in the garage of my current home.  Great for informal "get togethers"... such as fish frys, hobo dinners, and yard parties.
This is not really in your budget range, but for the fun of describing what I have here, and it is in a 10,000 cu foot room with an 18 foot ceiling; it's probably better than any night club I have been too.  My brother, who is an audio/video engineer said that my system comes the closest to a live concert he has worked with the national bands.

Main speakers are Bryston Model T signature with PX1 external crossovers being driven with 2000 watts each from Anthem M1 mono blocks.  An Axiom Audio EP800V4 dual 12 driver sub with a linear power supply, no switchers here and to the left side.  An Axiom Audio EP500V4 to the rear, single 12 inch driver with linear power supply to the rear.  And A Bryston Model T subwoofer with triple 8 inch drivers and linear power supply to the right.  Total power in the system is around 7000 watts and trust me, you can not only hear very detailed music, you really feel it!

The largest improvement I made recently was the addition of a Whest PS.30 RDT SE 2019 phono stage... yikes!  the sound stage and imaging is simply incredible.  I have a huge collection of 1980's electronic club music and it just blows the windows out if needed.  The detail in the instruments is astounding. 

BTW, Axiom Audio builds all of Bryston's speakers, so the system is totally matched.  Again, this is not within your budget, but man is it fun to play this system with a party here.....
I’ve watched a few installations in Japanese nightclubs/bars on youtube.
They were using huge JBLs.