Exactly ... and that's why I use an amp profile. I might have to make a video to demo what's going on here. But this might take a few days.
In the meantime I give it a last try with a picture and a list of what I do
- I connect my guitar to my Ceriatone Centura and this goes straight into my actual 1982 Marshall JCM 800 Bass Series. I set it up the same way I had profiled it about a year ago.
- Now I setup the sound I like on the Centura, Gain: noon, Treble: noon, Output: 3 o'clock
- Result: Glorius crunchy sound, highly dynamic and the same round bottom end I love from this amp
- Now I go from the Centura into the Loop Mono of my Profiler (slot B) with the same amp's profile loaded
- Result: Exactly the same glorius crunchy sound, love it so much!
- Now I disable the Loop Mono and put the Kemper Drive with preset Klon 4 in another slot (A)
- Result: Pretty thin sound, no mojo at all, not even actual crunch going on. What a disappointment
- Now I increase the Kemper Drive Volume to max (+5.0)
- Result: There we go, almost there, just about 2.8dB volume missing (I mentioned in an earlier post that I would need more than the +5.0 to exactly match)
Look at the screenshot below which documents quite well what's going on (apart from the distortion component).
Measured with the amp profile active!
Red Line: Ceriatone Centura
Dark Green Line: Kemper Drive Klon 4 default (see how it has much less bass bump?)
Light Green Line: Kemper Drive Klon 4 with Volume +5.0
Now regarding the distortion component of matching the sound:
At 40Hz the Distortion with default Klon 4 preset is a whopping 24dB less than with my Centura
At 80Hz the difference is still 10dB
It's very easy to hear the difference!
Interestingly, when I push the Kemper Drive Volume of the Klon 4 preset to max (+5.0), the Distortion is pretty much a perfect match to my Centura.
Bottomline:
I can make a dead on replica of my favourite Centura (Klon) setting, with the exception that I need 2.8dB more to perfectly match the overall volume.