Where do you send your A1 digital files for printing?

[Stepney]

Hi,

As mentioned in the title, interested to know where you guys send your A1 digital files for printing with success.

I hope to take the A1 raw file, and batch-sharpen them without touching the color balance, save them as tiff/jpeg and send straight for printing.

Hope to hear from you on your secret recipe to make this work...

thanks.