Recently bought a used Fireface 400 due to RME's reputation for rock solid driver stability and low latency. Just as anticipated, the FF400 is indeed rock solid and very low RTL in Windows 10 using Cubase 9 Pro.
I use my Kemper non-powered rack for just about everything guitar wise but have been experimenting with some NEURAL DSP stuff, over the past few weeks - quite good high gain simulations for sure.
For connectivity to my DAW, I only use the SPDIF in and out of Kemper, no other I/O is being used or needed. I play through Dynaudio BM6A MKII monitors which are fed by the RME fireface.
So my question for the readers here has to due with IMPEDANCE and DI SIGNAL and DAW interfaces in general. For some wacky reason, RME is using a 470k ohm INST input (either IN3 or IN4 on front) when set to INST via the RME software. This really SHOULD be 1M Ohm, it is baffling RME did 470k there. The Kmper of course has a 1M ohm impedance on the front input jack.
So, with the RME instrument input being as it is, it just does not sound right and clips way too easily when hitting it with EMG. So I was going to buy a COUNTRYMAN 85 or even thought about getting a Grace m101 but then it occured to me to just use the Kemper input, and feed the VST AMP sim with the SPDIF out of the Kemper.
How many of you are using the Kemper in this way, as a "DI" to feed a VST amp sim inside of your DAW vs. using a separate DI box?