Just really testing the water with this. Didn’t buy direct from SVS or I’d have upgraded. Been given the go ahead to convert a massive garage so looking at 4000s or ultras now as I always get the itch. The sub was bought in Jan 2020 so 8 months old. It’s awesome in my smaller cinema room at the min but even dual in the new room won’t satisfy my bass craving. included are a set of port plugs. Sounds pretty tight when in sealed mode I noticed a big difference and you have the app to play with. The sub itself is immaculate and only really run in recently. All boxes and original packaging included.