The Kabinet can’t be close miced because it has two separate speaker cones in it so there would be phase issues and other anomalies when a mic is placed in front of it.
The Kemper is designed to capture the full sound of a signal path including the speaker AND mic, pre amp EQ etc. There is no need to mic the speaker AGAIN as it is already captured in the Rig.
This full studio quality sound is sent to the FOH PA or recording interface with absolute consistency via the Main Outputs.
It can be monitored on stage via a full range speaker/monitor or in the studio via studio monitors or headphones.
However, some people complained that they missed the feel of a traditional guitar speaker for their personal monitoring (aka Amp In The Room sound). They felt that the full range (FRFR) sound which included the contribution of a mic in the profile itself was too produced and didn’t feel the way a real amp did on stage.
The Kemper has always allowed users to have the amp in the room experience by using a regular guitar cabinet. The downside is that every profile may end up sounding very similar because the speaker plays such a large role in the overall sound.
As a result the Kone/Kabinet was designed specifically to fulfil the on stage monitoring needs of these Amp In The Room users without the limitations of only having access to a single speaker model. It does a great job of this.
The audience still receive the full Kemper experience through the FOH PA using the Main Outputs so there is no problem with not being able to share your glorious tones with the audience. In fact, it is quite the opposite. Simply give the sound engineer either one or two XLR cables to send to the desk and the job is done. The tone will be the same every night too. In contrast, Trying mic a cabinet on stage is fraught with danger as you are relying on the engineer having your preferred mic, placing it in the best spot on the speaker hoping it doesn’t get moved during the gig (how many gigs have you done where the singer or the support band tripped over the mic stand and you mic was pointing at nothing for most of the night?), EQ the sound to your preferences etc, deal with spill from other instruments as high volume. The Kemper direct to FOH removes all of these problems and gives a consistent experience while making the engineer’s life easier. The audience gets a better sound, the engineer gets any easier life and (with the Kabinet) you still get the traditional on stage experience you are used to; what’s not to like ?