There is a big price difference between the 2 models.
The chap asked what he can get better than the BK's for a £1k. I suggested the SVS as its a bit more than £1k but its definately a step up from the BK quality of sub, a very big step up from the XLS400 (not heard the monolith). The DXD is a lot more ££ again
I take peoples sub reviews with a pinch of salt - take a lot of reviews with a pinch of salt, but especially subs as there is complexity to the setup.?
I have no doubt that the DXD1202 is an amazing sub, no doubt at all - but the SVS is also an amazing sub for a lot less ££.
When you eventually come and hear my system you will see why I say this
In addition - I could hear my BK's limitations long before I decided to upgrade. I honeslty have not found the limit on the SVS - bass performasnce is what it is in terms of frequency response - is never going to go the deepest - other subs do that better but it goes pretty deep - however the level of control, transparency and general underpinning of the sound it achieves is honestly phenominal.
I havent found a weakness yet, they will exist but they are not glaring obvious.