Today afternoon Tremonti rocked the Rock-Am-Ring festival in Germany (~80k people overall). Incredibly powerful performance with great sound. Mark used PRS amps. But two Kempers with bass player Tanner Keegan and two more with guitar player Eric Friedman 
P.S.: Sorry for the bad pics 
P.P.S.: Live stream is available for next 4 weeks here: Tremonti live
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P.S.: Sorry for the bad pics
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Well, if you see a UFO (or UAP in today's language) you better take super sharp pictures or no one will believe you.
PRS and Kemper... what more could I possibly need...
Yep... fully agree... and they had tons of nice PRSses on stage as Mark and Eric seem good friends with Mr. Paul RS
Ironically, I use an MT-15 Profile as my main high gain sounds. 
Is it only me or do you see also all the Kempers in the live stream turned off / nothing on the displays / no blinking leds?
Nice PRSses
Yes. They all have tube amps out back that are used.
Is it only me or do you see also all the Kempers in the live stream turned off / nothing on the displays / no blinking leds?
Indeed... but look into the Kemper's System menu on the first pages. You can turn down the brightness for all LEDs and the display down to zero. So maybe they intentionally made the stage less colorful...
