In-ear systems are becoming increasingly popular among musicians. They allow you to move freely on stage (via wireless connection) while always hearing the same sound.
What used to be possible only with huge monitor systems can now be achieved with small headphones.
There are several ways to use an in-ear system with AMP1. Here are some common options:
Signal to the mixing console and from there back to the in-ear.
This option is the classic version, just like you would use a traditional monitor system. The only difference is that the stage monitor is replaced by in-ear headphones.

Signal into an active splitter.
With this method, you tap the guitar signal beforehand and adjust your own sound using a small mixer on stage. You can also have the band's master signal sent from the main mixer, allowing you to mix your own guitar signal into it. Left/right distribution is also possible. It's very complex, but feasible, to use multiple splitters with this method, allowing you to tap into multiple instruments on stage and deliver the best possible mix to your ears. Using a dedicated mixing console, you can also adjust the frequencies of the in-ear sound slightly.

Signal without splitter.
If you don't have a splitter available, you can simply use the RecOut of the AMP1 or the LineOut of the BluBox to get your own separate signal, which you can then mix together with the other instruments in your mixing console.

Directly into the in-ear.
If you don't have a splitter or a mixer available, you can also connect the AMP1's RecOut or the BluBOX's LineOut directly to one channel of the in-ear transmitter. The sum signal from the main mixer then goes to the other channel, so you have the band on one side and the guitar on the other.
