For many years, What Hi-Fi has been pushing something called "UK Sound". I remember reading a review of the Pioneer A-400, they said that although it was a Japanese company, the product was engineered for "UK Sound".
So, what is "UK Sound"? I can accept that certain speaker designs are more suitable for the small rooms typical of homes in the UK. I can also accept that a certain target curve might be preferred by UK people. I haven't seen any proof of it, but it may be possible. After all, some British speakers were designed with the "BBC dip" - perhaps that is "UK Sound"?
In the end, I decided that "UK Sound" is a marketing gimmick promulgated by What Hi-Fi to increase sales of UK products.