Hi,
I must say that I have not heard the new 936 or 946. But, I own the 920.1 and can tell you that this is just an amazing speaker and in terms of getting the most sound for your money it is just the best that I know of. Since the model have been discontinued, you may be able to find these speakers new or almost new for 50% of the original price (which is 5K). Since the new line is very expensive (I believe that the 946, which is the equivalent of the 920, costs $7500). So, to sum up, unless you have a lot of money to invest in this hobby grab the 920.1 and invest the money you saved in quality electronics and cables. Hope that helps. Please email me if you have any questions regarding the 920.1