Why price of Tannoy speakers from online retailers in UK is cheaper than in US


I am looking for a pair of new Tannoy Kensington GR speakers. I notice the price from many online retailers in UK is cheaper than in US.  I believe they are authorized dealers because their websites are listed on Tannoy website.  Current price in UK for a pair of Tannoy Kensington GR Speakers is 9290 pounds(approximately 12K USD). Price in US is 9K/each or 18K/pair.   If we add shipping fee and import taxes and duties, it is still significantly less than the price in US. does anyone have  experience with buying Tannoy speakers directly from UK retailers.  Your input is appreciated.
michael8853
There are hefty duties on speakers!

Around 25% if I recall. Funnily enough, you can ship transducers with little or no import tax. This is why many countries have their own custom cabinet makers and these custom cabinet makers call themselves speaker designers!!! Rather an exaggeration for a bit of woodwork. I believe cabinets can be imported also from China with little or no tax as long as “final assembly” is in the US. So Chinese cabinets and European transducers now make up a large share of “American built” audiophile speakers.

So in addition to added freight cost - import duties play a big role.
Sea freight isn’t actually that expensive. I shipped an suv between the USA and the Mediterranean for $1100. Import tax for goods entering the USA from the UK I am unsure about. But a 6k difference between the UK price and the USA price is a lot. 
And vice versa retailers in US iare cheaper than in UK for gear imported from US to the UK there are dutties and freight costs to be paid.
@shadorne 

25% makes sense, KEF speakers sells for about 25% more in in the US than in the UK.