Thanks. Have done some googling and just found out that subwoofers are extremely expensive in my country (New Zealand). E.g. subs that are $600 in the US are equivalent of $1,100 here. But then I see that DIY subs are a thing. Might look into that because I do have woodworking equipment, import the electronics and buy the MDF locally.
Didn't really consider HDR and brightness. Lots to think about.
That duress feature is neat!!