The HK 7000, 8000, and the 7200's can be had at this price point, and IMO they blow every reciever away under 2k.
The Denons are rated at 6ohms at their prospective power points, and utilize lesser components than the HK and the upper line Onkyos. The upper line B&K recievers can also be had near your price point but you'll have to shop around.
Have a look at the specs for each reciever, you may notice the HK's ampreage is very high by way of comparrison to the others (except the B&K's), this is far more important than Watts Per Channel. This is also why many people prefer seperate amp(s)/decoder set ups.
Maybe you need more efficient speakers?
BTW- if you desire to sell your B&K drop me a line I might be interested.