Active speakers for a large room

JBL makes a number of powered studio monitors which would probably be a good idea.  They work great in far-field situations like restaurants.

The one issue is the size of the room. The difference in volume between the front and the rear will be unusually large, not sure if you wouldn't be happier with 2 monitors per side. This lets you keep the volume low, but equal.

Jump on a pair of Tannoy Revolution XT 8F  they will sound great they are passive however.

Hey garbo,
More and more choices in terms of Powered Loudspeakers are possible and readily produced.
What I would point out is that Genalec’s Monitor (design) is oriented more towards nearfield listening and low power.
Where as you have indicted an interest in use with more ambience and a preference for Less constraint and some flexibility.
This would indicate a requirement for a different radiation pattern.
This is about how a Loudspeaker integrates into a listening space.
Since AV use is also of interest this opens the way for at least one possible application of Surround Tech but would require more capacity than the Primare P30 offers (XLR connection to satellites as well as mains).
So the idea would be to expand the listening "area" to encompass the greater portion of the room with Surround Sound.
But again is dependent upon the selection of Speaker (type).
This could be accomplished with as few as four "Mains"
Possibly adding a center channel for AV at the listening position.
To me the more conventional approach would be to consider an MTM
Array type baffle for controlled dispersion.
Another alternative for listening on axis outside a critical sweet spot would be at the opposite end of the room ( "area" from current mains axis) requiring enough power and good room integration.
The stated use of current Subs is right on the money.

Another vote for JBLs; very well behaved (good dispersion & off-axis response, etc) and reasonably priced for the performance level. The M3 series probably tallies with what you need

Thanks for your comments. Passive monitors are not really an option as it would mean changing most of the system. Power is not really a problem; the Genelecs are turned way down as it is. Speaker placement is pretty much fixed as it is, being ideal for movies and having already installed the in-wall cabling. The right far field monitor might work, perhaps a JBL. Is there a particular one which is designed to disperse the sound more? I think I owe you some further history. The P30 is a quality 5.2 channel processor which I had listened to for years in 5.2 mode for music. It gave me the ambience I was after, but when I tried the RME stereo DAC, there was a distinct improvement in the sound quality, even off axis, something that I am loathe to sacrifice. I think it would take big bucks to find a multi-channel processor to match it, so I am invested once again in stereo. My hope now is that greater, though not perfect, dispersion might be achieved by changing the two main speakers only. By concentrating my resources on just 2 speakers I can afford a significant upgrade. I am currently looking at a pair of PMC result6, which are a definite step up and might be classed as mid-field. Perhaps it is sacrilege, but I am also finding that extreme toe-in is helping, maybe because, in most parts of the room, the closest speaker is facing away and the far one is facing me. As ever, this exercise will be a compromise. Thanks again for your help; further comments appreciated.