Jon,
Yes, they are 4 ohm speakers. I ran them with an older Sherwood Newcastle Pro Logic receiver with absolutely zero trouble. I also had another pair at home that I ran with a new Newcastle receiver, also with zero trouble.
These are the actual speakers and stands for sale. I will note that cherry does darken over time so they are a bit darker than the picture indicates, but they are not the color of say antique cherry furniture. I may be able to get a more accurate picture this weekend if you need one.