Retro fitting the power amp ?

Hi
I bought my Kemper a few years back now, and regret not buying the model with the power amp.
Is it possible to have one retro fitted? And if so, who in the UK can offer this?

Thanks

Thanks they look an interesting option.
But it looks like they are amplifiers that physically fit inside the Kemper, but rely on their own power source, and other external connections for input from the kemper unit?