Topmusicanswers
A splitter usually isn't ideal for recording, although you probably wouldn't notice any problems going into a USB converter. A better option would be something like a mini-mixer which can isolate the signal and let you send where you want.
How do you split a guitar signal for recording?
All you need is a good splitter box to make this trick work. Plug the cable from your guitar into the splitter, and then one output from the splitter directly to your recording preamps, and the other output to the guitar amp.
How to split DI signal?
If you want to split the signal, to record the direct signal of a guitar while simultaneously capturing the sound of the performance through the amp for instance, use the Thru Output to send a duplicate signal to the amp.
