Always keen on extreme audio experiences, Adam Rayner gets up close and personal with the technology behind the Imax experience. The deepest and loudest sound systems in regular performance use in the world, with accurate tight bass down to 20Hz and Sound Pressure Levels of up to 118dB! The Imax cinema system selfmonitors with acoustic analysis microphones and an opticial science grade camera to check that auditorium performance is maintained. If a woofer dies, the system turns up the bass to compensate and the computer orders a new part from Canada. It even allows for the changes in screen and speaker performance through time! Odeon Uxbridge means digital Imax awesome sound and perfection of 3D visuals, too.

Imax is not not just watts and loudness, it is sonic holography and uses a Voice Of God 'height' speaker too, encoded all the way from the movie's sound director who mixed for Imax.

Lastly but NOT leastly: An ENORMOUS apology to Imax for getting their very nationality WRONG on the video vocals. They are Canadians, like my aunties in Toronto, so vast sorries for calling you guys 'Americans'!