[This builds on a thread by Eric86 from Nov 11, 2020: Wet/Dry/Wet using cab and monitors? ]
Hi. In my practice room/studio, I've been running my Kemper Rack through a guitar cab for AITR sound. I use a separate tube stereo power amp which has allowed me to run L/R stereo.
However, I've always preferred the sound of W/D/W, and last year added 2 "broadband"-range1 speakers in a cab and a tiny pedal-sized micro amp to power one side of the wet feed. This has allowed very clean separation of the reverb and delays from the "STACK" feed, BUT does not permit stereo rendering of any of the mod effects, since they are not included in he kill-dry wet channels. The workaround to hearing any Chorus/Flange/Phase, etc is to select "MOD L" for the guitar cab, BUT that is MONO only.
[Power amp is a Mesa 20/20. Top cab is generic cab w/ pair of Celestion 12H-200TC. Bottom cab is a custom Jenkins 2x12 with Webers]
Next, I invested in a second micro amp and have set up a W/D/D/W configuration, employing both cabs in stereo. This results in MOD L and MOD R to each speaker of the guitar cab, plus WET L and WET R are still routed separately to the "broadband" cab. Here are the pair of electro-harmonix 44 Magnum power amps:
The output settings in the Kemper look like this:
What a difference this made! The sounds are huge and crisp. Now, I am able to enjoy the natural phase-widening of true stereo chorus and all mod effects, AND the REV and DEL are completely separate in the sonic space. This improves the sound of both clean rigs and overdriven rigs alike. Kemper also has a useful STEREO WIDENER, which further enhances the phase separation of the modulation stomps. This feature works even better when it is not blended with reverb, as in this application.
The resulting set-up must be experienced to appreciate, but if you are considering W/D separation and want to go a bit further for an ultimate stereo immersion, try it!
Lastly, running any WET-only(kill dry) output apparently prevents the Looper from being able to run in OUTPUT position (which is the only good way to use a looper, IMO), so there may be a trade-off if you are a looper power user. The looper only works in INPUT position, OR, you need to blend dry to your broadband cabs.