I looked at your system picture and I'd say as a REL owner I could never make the sub work in the corner. The only way to have fast integrated bass was to bring the sub out into the room and position it directly in front of either the left or right channel main speaker.
I've never understood the recommendation to put a sub in the corner. From what I've experienced it gives a large quantity of bass, but terrible quality.
I'd experiment with placement before putting anything underneath the REL.
I've never understood the recommendation to put a sub in the corner. From what I've experienced it gives a large quantity of bass, but terrible quality.
I'd experiment with placement before putting anything underneath the REL.