Ah, here's a practical article that may be insightful for those people setting up a subwoofer for the first time. The rest of us ancients might find it a good read, too! After all, we are all just sitting here anyway waiting for the UMC-1 update....
****UMC-200 fortified with a LPA-1 & two UPA-1s, Revel F36s, C12, S12s, RSL Speedwoofer & Earthquake Audio CP-8 sub woofers, Vizio P55-C1 UHDTV, Oppo UDP-203, a Mac Mini for hi-rez music via the DirectStream DAC from PS Audio