NOTE: Scarlett Solo and 2i2 3rd Gen don't have a dedicated Loopback feature. This is available when working with the larger devices in the range, Scarlett 4i4, 8i6, 18i8 and 18i20 3rd Gen.
Does Scarlett have loopback?
No, the Scarlett 1st and 2nd Gen range do not have the loopback function (apart from the 1st Generation 8i6). ... To do that you'll need to configure Scarlett Mix Control (1st Generation Scarlett) or Focusrite Control (2nd Generation Scarlett) to send whichever channels you wish to loop back to the SPDIF Outputs.
Which Focusrite Scarlett is the best?
As we continue our Focusrite interface comparison, we have the Focusrite Scarlett 2i2 3rd Gen USB Audio Interface to look at. This is probably the best Focusrite audio interface for singer-songwriters who need to track vocals and acoustic at the same time and yet again offers unbeatable value for money.