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* Studio* Merged* Direct Output* Direct Amp* CabThe KPA was designed primarily to capture the sound of a tube amp running into a mic'ed guitar cabinet. With this idea, the KPA split the resulting profile into two parts: an ''amp'' profile and a ''cab'' profile. The cab could be disabled, so that you could output the KPA into a transparent solid state amp feeding into a real guitar cabinet. Or you could swap out the cab profile with another one, preserving the key aspects of the amp profile, but getting the unique sound of the new cab/mic.
→Profiles
== Profiles ==
The big word in the Kemper world is "'''profile"''', which is loosely defined as a digital snapshot set of an amp/cab/mic data that the Kemper KPA uses to reproduce their the soundof a real rig. The profiling ''process'' sends a special signal from the KPA into the guitar amp (or device), and the signal from the mic'ed cab (or other output source) is sent back to the KPA, where it is analyzed and turned into a profile.
However, a couple key things stood out. A key part of the sound of a real rig as well as Kemper profiles are the interaction between the amp and cab, which forms a unique impedance. Disabling the cab and using the same real cab as was used for the profile didn't quite get the same sound as the real amp and cab. So Kemper introduced a new profiling method in FW 3.0 to create another type of profile, called ''merged'' profiles, which required merging a profile of the full rig and one of just the amp using a DI box. The merged profile uses the combined data to get a faithful reproduction of the profiled amp connected to the real cab used to profile, allowing identical sound while running simultaneously to a real cab and to a PA system.
Here's a list of the different terms used for the different kind of profiles:
* '''Studio''' - a set of amp and cab profiles created using the traditional profiling process
* '''Direct Amp''' - an amp profile created by taking the feed from a DI box connected to the speaker output of an amp (with the speaker cab or a load box connected after the DI box) - this process does not create a corresponding cab profile
* '''Merged''' - a set of amp and cab profiles resulting from merging a Studio profile with a Direct Amp profile. This kind of profile faithfully recreates the sound of the amp attached to the profiled cab while the Cab block is disabled, allowing dual output for live situations
* '''Direct Output''' or '''Preamp Profile''' - can be a set of amp and cab profiles or just an amp profile after FW 3.0. This is a profile of an amp pre-amp, returning the output of the pre-amp (often the effects loop send) to the KPA.
* '''Amp Profile''' - a profile designed to emulate the response, compression, basic EQ, and distortion of an amp. This kind of profile is created by all profiling processes. It may be modified by the merging process.
* '''Cab Profile''' - a profile designed to emulate the phase relationships and frequency response of a mic'ed cabinet (or the general sound of some device). Generally, these are only created as part of a Studio Profile, but it can also be created from a Direct Output profile. This can be modified by the merging process.
== Rig ==