Originally Posted by Ovation
Only the A20x0/30x0 models EQ the sub at all--there is some EQ applied below 60hz, though I'm not sure of the specifics. I use an Antimode 8033 for my sub EQ needs.
The 2000/3000 do indeed EQ the sub to below 60hz.. the problem with the way it's implemented is that it uses a fairly coarse parametric EQ with center frequencies that may not match your particular room modes.
For example, in my case the RXA3000 only applies a -0.5 adjustment to the 49.6hz band with a Q of 0.5 .. because, well that's all the resolution it can use. If it tried to do more, with the coarseness of the PEQ it would make things worse, not better.. so it doesn't try.
Measuring with REW, I can tell I would benefit from other filters, but those center frequencies aren't available in the PEQ.. I could try and compromise since there re 4 PEQ bands, but that's tough to do and likely to make things worse, not better.
As a result, I've also ordered an Antimode 8033 since it will have the necessary resolution to address my particular situation.