I was looking for an backup for the Kemper for life situations.
I looked many youtube videos about the Katana's and Blackstar ID core's. In these videos to me the Katana sounds a little bit better.
But I wanted stereo, so I ordered an ID core 100. When it arrived I had about 14 min. to dial in 6 presets before take it to the rehearsalroom.
Emulated out (mone/stereo) to the mixer/PA (volume controlled bij gain/volume) and used the IC core as "monitor" (volume controlled bij master volume). The emulated output thrue the mixer/PA (DXR10/12) sounds almost identical as the 2 x 10" speakers in the ID core. For me good to know, because what comes out of the emulated output of the ID core, is what people will hear from the FOH (DXR's in small venues).
Later at home I tried the Kemper thrue the send/return (stereo) on de ID core. I configured out in the Blackstar software I had to use (programming) the footswitch to activate the send/return. For the Kemper (Kemper main-trs out tot send/return ID Core) I leave cabs on (especially on crunch/high gain), but had to change my favorite cabs to an cab with less "lows" and lock this cab for all my presets. This worked very well for clean/crunch/leads, for sure some "amp in the room sound". I even heard some 3D on the ID core that I never heard on the DXR's.
Same with the Atomic Amplifire thrue the send/return (stereo) on the ID core. With my favorite cabs on (3d party) the sound was not so good, but surprising with the Amplifire stock cabs the sound was quit good, same as the Kemper some "amp in the room and 3D sound".
So I have to figure out how to get the Kemper with my favorite cabs (through FOH) to sound good with the ID core (as monitor). Maybe Kemper monitor out with some EQ.... will be continued.