Sorry for the delay. I turned off the subs on the Bhaavas and also disconnected my subwoofer. Better bass than I would have expected. I'm listening to some electronica right now and the bass is quite good. I get what you're saying with the powercords though. With all subs off, I realize that I need to do some more work on integrating the Rel 212-SE. It's likely too big for my current listening room. I picked-up a JL CR1 crossover which I was hoping to introduce into the equation. This would let me high pass to my 2A3 SET at 60Hz or so and then send the rest to the sub. I think this will likely be the best outcome. A friend who I trust has done this with stunning results.
Running the Bhaavas with an external sub and not using their internal subs is my preferred mode.