Eight weeks ago we thrust Nexus upon an unsuspecting public. The first dual-channel digital sound decoder for the model railway market, it's a great piece of kit – and you'll have lots of fun with it when it debuts in our OO Gauge Austerities this autmun and O Gauge Pugs next year.

But understandably, you also have questions: 'Can I upload my own files? Does it work with Railcom? Where can I experience it...and what's the actual benefit of this new-fangled masterpiece of digital wizardry?

So we sat down with our digital expert John – the brains behind the hardware – to get his take on all this and more.

Don't forget we're always on hand for any other queries or suggestions you might have – just give us a call or drop us a line.