Another vote for two subwoofers. There are many good subs from which to choose, but if you want the best stereo imaging then you want two. I have two SVS SB3000s that I like especially for the iPhone app that permits nuanced adjustments.
Would you choose 1 ou 2 subwoofers for a stereo set?
Would you choose 1 bigger sub or 2 smaller ones?
For a living room 6 x 8 meters (speakers on the smaller side). (3.5meters high)
Mcintosh MA9000 + BW802 D3
I listen mostly to digital audio (DAC / Streamer)
Looking into 1 JL Audio 13" or 2 JL Audio 10"