Just read the thread.
When someone says they don't think the Kemper sounds like the amps so much or has no low end, I immediately start having technical questions to see if they have good equipment or abilities to judge their opinion better.
Things Like:
1) Did you use Headphones? If so, what brand?
2) Did you use the same mic setup to record your amp, then the Kemper, THEN A/B them?
3) What was your mic setup? A direct line from an SM57 or a decent preamp?
3) Did you tweak the Kemper's EQ and Amp Tube settings to try and match it?
4) Have you recorded any of the profiled amps to see how they compare to Kempers "supposed" profiles?
Basically what DID you do to arrive at your opinion listing gear and some actions that show you know what you are doing. If someone used bad headphones, that may be a huge part of it, if you get what I mean.
(This is where I wax happy on my ownership after 1 week):
As for me, I wasn't "wowed" by most of the given profiles when I bought this last week, but I found 5 of them that did "wow" me after playing it for about an hour going through them. Then I bought Amp Factory profiles and was like "WOW". So Kemper is not doing itself the best advertisement in putting profiles that are inferior to professionally bought rigs from Amp Factory or Soundside.
I found a few on the Rig Exchange that are keepers. I started choosing by ratings (5 stars) and forum users who wrote what they liked.
(BTW, How about adding the ability to sort by Star Rating, prioritized by how many rated them? Like Amazon does)
I've also profiled my amps today and am "WOW".
Now, does it sound like my amp on the same profiled setting in the room? No way. And it shouldn't. BECAUSE it's a RECORDED sound. It's not going to thump your chest, which is a big part of the perceived "low end" that speakers aren't going to easily reproduce unless you are putting it through an amp. I play it through my monitors and it rocks. Even my amp directly through the monitors would do that without chest thumping.
So, in a description, it helps to describe what is meant by "Low end".. And what you are using it for, like Live, or Recording, or Headphone Listening, etc.
As for me, and I'm gear head enough to have a few boutique amps and tried many such solutions, I've been blown away, and it took me less than a day to get an unbelievable rig that was like playing a tube amp in my headphones, and I mean REAL tube amp sound and response. Not an "almost" or "90%" but like, I couldn't tell the difference finally. I am inspired and play without ever getting fatigued thinking "you know, this is really not as good as when I started". It is as good.
I've chased this tone and ability for years and been very disappointed (I have not tried Fractal, which I hear can also do this, I don't know personally)
But now? I have been smiling all week, very grateful that a product sold to me is ACTUALLY as it was described and advertised.
Will I get rid of my amps? Some I will. My chinese Vox AC30? SELL. My Marshall? Sell. My Tungsten Crema Wheat? Probably never. Got to keep at least ONE amp around for that chest thumping fun in the home. I don't gig, mostly record and play rarely with a friend.
That said, the main failure of this product is software support: EDITOR, PLEEZ. Without an Editor this thing is KILLING ME. Or at least add the capability to hook up a keyboard for character entry!
So far I'm uploading a rig, then tweaking the info, then putting it back onto my Kemper. It's easier.