Uploaded March 2019 | Updated September 2026, 2 weeks ago

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Here's a quick comparison of these two software ampsims...
I decided to not use external/my IRs, since those might not be available to everyone, instead I used the IRs/Cabs the plugins come with and just picked my favourite one out of those, then tweaked the amps to my liking.
This is by no means a scientific test, it's just a quick comparison of those two ampsims set up how I liked the sound.

First half is without any boost, second half is the amp boosted.
I used the internal "hex drive" overdrive with the NTS and since the UAD Herbert doesn't come with an overdrive, I used the TS808 from the Audified Multidrive PedalPro to boost the UAD.
Links to all the products here:

UAD Herbert:
uaudio.de/uad-plugins/guitar-bass/diezel-herbert-amplifier.html

Neural DSP NTS:
bit.ly/2XGNWGY

Audified Multidrive Pedal Pro:
bit.ly/2zwVGke