I usually play my qc with headphones and it sounds amazing. I recently bought a fender fr12 and i noticed when i play through it i can barely hear the effects.
It still sounds ok but im missing all the awesome delays, reverbs etc. (Its there but barely)
Are there any settings i should try adjusting?
Leave the bass on the fr eq and boost the middle to 2-3 I clock and treble to 1-2 and be sure not to use ping pong delay or stereo effects, when using one fr
If you’re pushing the frfr reasonably loud, that’s not unexpected. Presets at lower volume sound wetter and usually a bit thinner (see Fletcher Munson). You may need to up the mix level on your effects. Typically I try to dial in my presets at gig volume, because if I get them sounding good at low volumes, they invariably aren’t right cranked - too dry is often part of it.
yep, this … always mix in the open air .. the results will sound great in cans.
Mixing in headphones is like trying to paint a large wall through a microscope.
Interesting…I just bought a pair of FR10s and noticed the reverb mix sounds wetter than it did through my Headrush cabs. I havent noticed a difference in other effects. I assume the FR10 and FR12 are voiced similarly. I wonder why your experience is so different from mine. 
As others have stated, your mix coming through an FRFR or a Guitar Cab will be significantly different than what you hear through your headphones. With headphones, you’re isolated and things sound good because there’s no other “air” around what you’re playing. This is why I have two separate lanes for wet effects - 1 that goes to FOH with the cab block, and 1 that goes to my guitar cab (no cab block in QC) on stage and those wet effects are separate from the FOH mix so I can dial in the stage effects differently. Our sets are often recorded so I want the mix to FOH to remain untouched and sound the way I have mixed it, but the stage mix will be different.
you could even go as far as assigning the wet levels (or a Splitter with all the wet fx on one Lane) to an XP and then you could adjust the wet mix while playing.
my delay mix, repeats, and reverb mix (if I use rev) is always on an expression pedal. Once you get used to having that kind of control it is hard to go back.
I strongly believe that the QC HP output has different filters than the other output ports; but still searching for final answer.
best bet would be to address Support@neuraldsp.com directly. They’re pretty helpful with technical questions. Shoot them an email, let us know what they say. That’d be the most direct way to get a definitive answer
Thank you very much for the tip.
Appreciated