Need more XLR inputs

Need more XLR inputs. All I have is a Focus rite Scarlett with 2 XLR's. The model is the 6i6. I have the 11 rack but need to record drums, 4 channels at once. Any ideas or brands that co inside with the 11 Rack? Thanks

That 6i6 is a 6X6 interface.

You have two mic inputs now, so you will need to get a mic pre that will output to the line in or S/PDIF inputs (or both) of your 6i6.

Something as simple as THIS would increase your XLR inputs.

Thanks , I'll give it a shot.