hi
i sold my Kemper nonpowered cabinet because it sounded too boxy and thin.
I bought a Harley Benton 2x12 Vertical with V30 Celestions for 290 €, sold the speakers for good money and replaced them with 2 Kemper Kones.
Now i got the sound i was looking forever.
Sounds like day and night compared to the Kemper 1x12 cab.