I don't think you've got too much wrong there, aside from hoping what comes out of PA speakers might directly translate from the way you set up for a good sound from the MF10s. They are very different beasts, so can't really be expected to behave in the same way.I've noticed that many players seem to really enjoy their red sound speakers. However, when I purchased the stereo bundle with MF10's over a year ago, I found that I couldn't work with them. I was tweaking them on gig-volume but the mid hump and overall coloration was just too much for me. Usually, my presets translate well on most audio systems, and if the monitors are of decent quality, I don't mind using them during rehearsals. While it might not be the most enjoyable experience in terms of feel, I can handle it for a couple of hours with a bit of EQ. I was looking for a good solution for situations where I couldn't use IE-monitoring and expected the MF-10's to solve that problem so that I could retire my amplifiers for live use. However, it was far from plug-and-play, and when I tried to tweak my presets to make them work, I couldn't really settle with the sounds I was getting. When I finally came somewhat close, my presets sounded pretty much unusable on my studio monitors. Reviews suggested that I might need to do some tweaking (of course you need to fine tune stuff), but I felt that the sound from the speakers and what I recorded at the same time were very disconnected sound-wise. I really wanted them to work, but despite my efforts, I had to let them go. Perhaps they're more suitable for high gain players? I mainly dabble with the slightly saturated cleans and the "bluesy humbucker lead" area. What am I missing?
I think I have landed on the right intent, but I'll try to remember to let you know if the plan doesn't age well. I don't use particularly high gain most of the time either, but I don't think that's really the issue.
I've been setting up presets to work with the MF10s so far, meaning that I don't really need to tweak much between rehearsals and gigs in terms of my own backline. I'm so far just sending mono to front of house from there, but I am having to set the EQ on the PA to compensate for a couple of things. Remember, no FRFR is truly FRFR, and the deviations all have a reason.
First of those is that the MF10 is very much a "closed-back guitar cab-alike" FRFR. Surprising bottom, great mids, top end is there, but the really glassy, "breathy" highs don't really come through. The trick for me is to do the same as would do with a 4x12, which is to over-compensate with amp treble and presence controls so it has the bite that I want on stage. For me, it makes sense to do it this way around, as it means my stage sound feels very naturally analogue amp-like, and if I'm using a little feedback on louder settings it behaves pretty similarly to a 4x12 or 2x12 combo.
Second deviation to understand is your PA system voicing. We use a pair of RCF ART 732-A Mk 4 sitting on top of a pair of Mackie Thump 115S subs. They are voiced to make sure vocals are clear and audible, and kick drum and bass guitar move some air without sounding harsh. So they tend to enhance the really high top end, and boost the very low end quite a bit (typically below guitar frequencies), but have a lot of the mids sucked out to stop vocals sounding boomy, or kick drum or bass guitar getting too harsh or resonant. (I need to pull out around 350 Hz on the kick drum, 700-1kHz on bass guitar when mixing on many rigs, but really don't need to do so much with this one, so I am guessing this rig is a long way from "flat response", despite being pretty "full range". Sounds great for album recordings with electric guitar, but...)
The first time I ran presets set up for the MF10s through front of house I was horrified. The combination of variances from FRFR of the 2 systems meant that the sound felt thin, brittle and lifeless. For the first gig I tweaked a little, but decided to run loud as hell on stage so the PA didn't need to do so much with guitar, as I was short of time in the soundcheck.
For the second gig using guitar through FOH I pulled out a load of top end with a shelving filter, and it was a lot better. The next job will be to fine tune the top end, and figure out where to boost the mids to get more body back into the overall PA sound if needed. I'll most likely do that in the rehearsal studio on my own, so I don't feel pressured by the rest of the band getting bored by my need to experiment. I'll set up with PA speakers and MF10s both facing me from the same direction, so I can switch between the two of them, or mix them together, and make sure they match (nicely rather than perfectly).
In short, I don't think you are missing anything, more that you are noticing the same things that I have. The only real difference is that you were using presets set up for audio system and monitors, and hoping to tweak them for MF10s. I've gone the other way round, principally so I have a backline tone I know I am happy with. But actually, I end up with a lot more EQ options between the Axe FX output and the PA input. That was kind of accidental, but with hindsight I think it is the way to go.
Liam
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