I use one of the REL HT-Air units sending LFE from my Denon AVR in the front of the room to a passive Snell sub powered by an Outlaw 2200 mono amp on the back wall of my living room. Zero latency issues, and works off wireless frequencies like a router rather than Bluetooth. If you like reviews, Amir did a review on it and liked the REL transmitter very much. The SVS version did not test so well. I'm super happy with mine, my wife got it for me for maybe a hundred bucks last Father's day. If there were latency issues, your AVR could fix those anyway.\nSaved me wiring a 20' run over tile, and gave me the flexibility to move the sub on the back wall to the goldilocks spot.