We're surrounded! But, we're not talking your run-of-the-mill, 5.1-speaker package...

We've been immersing ourselves in the Meridian Signature Reference System, available as an optional extra for the Range Rover Autobiography.

The set-up features 29 speakers dotted around the cabin of the Range Rover and uses Meridian's Trifield 3D technology to process the sound. The system includes centre and height channels plus there's a special surprise lurking in each of the seat backs. 

Take a look at our hands-on video below for the complete low-down...