Polks American so might be a issue powering ( but just noticed some thing ). To me Polk is like Tannoy in quality and sound. Reputable is a understatement i had a issue with mine and they just sent the single part and all was fixed. And some A/V's come with dual sub ports now as i am sure you know. Anyways hopefully some one can confirm it. Does this look compatible with UK voltages ?. You could send them a email about it and make sure. Kinda curious my self and will email them anyways.