Kef do the R50 Atmos speakers, they are around £600 for a pair of them. Again it is a case of whether they would be a good match with my B&W speakers, I would think they would be much better than the onkyo's i currently have & i could afford them. I have yet to try the ones i have with an Atmos enabled film.
So far i have watched Quantum Of Solice with them & wow it makes a difference but not as much as i had hoped for, they certainly need a bit more bass for my taste. The Onkyo speakers I have are a good interim product for me until something better comes along to do the job at a reasonable price around the £300- £500 mark, so keeping my fingers crossed for some B&W Atmos speakers 🙂
Just to add i am impressed with the upscaling of the SC-LX78, I watched the ITV4 standard definition of the MOTO GP tonight & upscaled it to 1080p on the amp & it looked very good, better than the TV does it for certain.