I had two SVS subs but was not happy with the quality of the bass for music. I moved to one F12 and I feel the quality is better. However, like the OP, I sense its location in the room and others can too, even though I left one of the SVS subs on the other side (my two svs subs were located R and L of the speakers) and only the F12 is hooked up. If I had only 1 sub it would have to go in the middle but with my set up it can’t. I don’t know how 1 sub in the center would sound having not done that but I think two would sound better at the R and L. I will order another F12 in time.
Question: Does the R and L channels get different bass in songs? Thus is there is right channel low freq signal that differs from the low freq left channel in music from my DAC which outputs as line level right channel and a line level left channel.
Thanks.