Is the Stadium missing 12dB of gain?
And here is the story: I have both a Stadium XL (long time OG Floor user) and an AM4 (just to see, how good FAS really is). Over the last weeks I swapped back and forth between both units and I somehow gravitated towards the AM4. It just sounded bolder, ballsier, rawer. The Stadium felt more polite, hi-fi but a tad lifeless. I just used a single model of a 5F6A Bassman to not get distracted by switching between to much stuff. I know the (real) amp pretty well. I used the same IR (Amalgam MAGN DUSK MIX) on both units to rule out the cab.
So after all the comparisions on what model sounds "more realer" on which unit, I set both units' models to the same settings and realized the AM4 had more gain at the same settings. Still curious I hooked up the AM4 via SPDIF after the Stadium. When bypassing all blocks on the Stadium and with all other parameters set to default on both units, especially all gains and levels, the AM4 suddenly lacked a lot of gain. I double checked by going direct to the AM4 input. I had to add a +12dB gain block to the input of the Stadium to get the AM4 to sound like going direct into the AM4. With that +12dB boost on the Stadium I was able to dial in both Bassman models very close to each other. Without the boost, both models sounded equally weak. The difference in sound an feel of both units was much smaller when going through the Stadiums input. Interestingly the input meter on the AM4 showed quite high levels when going through SPDIF even without the boost.
So my question is: Does the Stadium (and probably OG Helix) has too low internal levels or has Fractal (at least the AM4) to high internal levels? Or what am I missing? Feel free to try that setup if you have both units.