Lol, I guess we could argue all day about what volume levels and frequencies bother people. 20-30hz loud enough to shakes objects would piss me off, similarly to 60hz "beats" loud enough to hear, so I guess the key element here is volume, and ensuring that 25hz is nearly as present as 50hz, as 100hz, and so on. I am on the basement level, so I have slightly more freedom.
In any case I ended up with a Sinclair Brighton 310S, at 1/3 the msrp after taxes, I couldn't pass it up. Hopefully someone can refresh my memory on how passive radiators work, how would I go about "tuning" them lower. Would locking one of them off lower the fs or bring it up?