Sorry, have been trying several other mic's & lots of different cables to see if it resolves the issue as suggested.

No luck.

I can now get all manner of instruments to record, including several guitars, electric violins, yamaha drums but just can't get any Mic that I plug in to work.

What's different about a Mic compared with an instrument ? 

Could there be settings in Garageband that need to be changed ?

Thanks.

It's not something I've tried as yet, but your help has given me some pointers to investigate.

I'll take it to the store where I purchased the Line 6 box & Mic and see what they suggest, as the Mic's I've managed to borrow to try seem to be of a similar type and all with the same issue.

Thanks for your help. Apologies if some of the questions seemed dumb, but I'm just a novice trying to learn.

I'm getting there with some great help.

Thanks again for your assistance.  Have a fantastic day.

Cheers,

Anthony

Sydney, Australia.