We did confirm there was a bug in the EVH 5150 IIIs red channel model. Here's a quick update on our progress:
Here's two recorded sound samples - the first is the original 5150 IIIs amp's red channel and Stealth 4x12 cab, mic'd with an SM57 on cap edge. The second is the updated TMP red channel model of the same (all settings the same on both the amp and TMP model).
The amp was recorded as mentioned above. We then took an IR of this cab and mic in the exact same position (to eliminate any variances), and then recorded the updated TMP red channel model with this IR.
Again, this is still a work in progress, but thought y'all would dig checking it out.