I can certainly hear it. Unless there's a very significant difference between your pickups and what was used on the sample, I would guess that it's something in your recording chain.
Here's the debugging steps I'd take if it was my studio:
- I'm assuming that the Focusrite connects to your (Mac / PC) via USB, so you could check to make sure you have the latest version of their drivers.
- You might also try downloading a trial version of current DAW software. Cubase may have a demo, I don't remember, but I'm pretty sure Reaper does. If it's the age of Cubase 5, recording with an up to date DAW would show that.
- Do you have any friends with recording setups? It's easy enough to throw the Kemper in the car and test it on someone else's system, which is cheaper than just buying a new interface or software not really knowing if it's the problem or not.
- Swap out all cables
- Another test, which is a hack but might be enlightening, is to play the sample track through your stereo. Stick a mic in front of the speaker and record it. Then play back and compare. Naturally mic quality and placement are a factor so it'll never be perfect, but you're listening for a pretty specific characteristic in the high end. If your recording through the mic shows that problem as well, then it's definitely something in your recording chain.
And always remember the first rule of debugging: change one, and only one, thing at a time. Test, draw conclusions, change the next thing. If you change more than one thing at once you'll spend hours trying to find the magic bullet. Don't ask how I know (I program for a living).
For what it's worth, I have lots of M. Britt and also some Top Jimi high gain profiles. Each and every one sounds exactly like it's supposed to, whether coming out of the monitor speaker or recorded and played back. So, don't despair! You can get there, it'll just take some work to sort it all out. Some of the gear in your environment is less than optimal, so it's much more likely to be something along those lines than the Kemper itself.
Of course, it's possible you have a defective unit, but my gut tells me it's your signal chain, so I wouldn't hit up support until you've eliminated all the other factors first.
By the way, regarding DAWs being expensive... I run Cubase Pro (they all do pretty much the same thing). And while I currently have a Yamaha TF5 mixer that's also my audio interface, I have several of Steinberg's UR22 and UR44 audio interfaces from a previous iteration of the studio. They're very clean and the ASIO drivers are rock solid. The UR22mkii is a hundred bucks. And, it comes with a free version of Cubase AI. I believe it's track limited to either 24 or 32 tracks, but it'll have waaaaay more horsepower overall than your Cubase 5 version. I've used the AI stuff for some live projects and it does 90% of what the Pro version does.
https://www.amazon.com/Steinbe…/dp/B017MVUAHM/ref=sr_1_2
So, if it turns out the Focusrite and / or old Cubase is the culprit, a hundred bucks gets you back in the game. In fact, given Amazon's generous return policy, you could buy the UR22, keep it if it solves the problem, return it if it doesn't.
Anyway, lots of info, but I know how frustrating debugging can be. Hopefully some of this helps you get it sorted out. Once you do, you're going to absolutely love what the Kemper will do for you.