I have never in over 40 years of gigging ever had an issue with FOH sound, stage monitors yes, my on stage bass sound never, so hear is a little personal ramble on my thought process.
My rig is my monitor....it is not a front of house sound, so it is not an isssue.
My current rig is 2x1x12 cabs....so how in any way shape or form is that sound or feel going to be represented through front of house?
So those sub bins, bins, Mid Range, horns etc are not even close to what i am using, so they will never ever represent what i get from my rig, in the sense of feel and any tone, to the audiance front of House.
Even my current amp, Aguilar Tone Hammer 500, is not going to contribute to FOH in the scheme of things, the amps they are using will do the job, so there is no way shape or form that my Tone Hammer is an issue for FOH, i could DI straight in to the stage box and take a monitor mix and it would not make a single bit of difference in the scheme of things for FOH.
What i want is a sound i am familier with, a sound that makes me feel comfortable with what i am playing, what FOH want is a signal, a clean signal that they can use within a frequency, within the dynamics of the room they are in...those dynamics are ever changing.
Like i said if i have a lovely punchy 8x10 sound then putting it through any PA is not going to represent what i feel coming from my cabs....say the PA is all 15s and 12s, how can they represent the punchy sound of my 10s when they are not using any.
So i stopped using big heads and 10" loaded cabs many years ago and settled on the little rig i use now because it is a consistant reliable setup for a comsistant reliable sound that i like.
I for my sins never ask for a sound check, i will do one of asked, but it is for the FOH enginners.....not my benifit because i know what my bass rig sounds like so i have no need to sound check it.
The sound, or line check is for FOH enginers as they do not know what my bass sound is and how they will mix it into the FOH.
So a line check to make sure they have a signal, a sound check if they ask for one, apart from that i take no real interest in what they do, i always thank them for their hard work and time as a matter of courtesy, even though it does not affect my on stage sound at all.
My issue with stage monitors is i do not want my bass in them, i will take the sound from my amp.
Back to what i said earlier, if i need stage monitors to hear my on stage sound then what is the point of using my rig? Again that 8x10 bass sound is not represented through a 12" or 15" single speaker stage monitor.....if it is then why am i using 8x 10s when a single 12 or 15 inch speaker can give me the tone and punch i want?
So i use 12s in my rig because it more often of not matches the 12" monitors kicking around the stage so it gives an even bass sound across the stage area.
Now because others want the bass in the monitors so they can hear it, whan i walk about the stage i do not have many 'dead spots', again the sound is consistant. But i will find a 'sweet spot' where i like the sound and go back to it when i want to get off on the sound, the sweet spot allows me to hear everthing clear that is going on around me on stage.....sojust stand in it and enjoy the sound.
Again, those monitors is powered by a completely different amp from what i use, so my amp is not even helping with an real EQ....my amp is a preamp in effect or just another effect in the stage line.
Now in a small venue where my amp is the sound, that is a different matter...when i am being judged on the stage sound i have as being what anyone FOH hears then i have to work on the sound and create a sound that works for the room, not the sound i ideally want...nice if the two are compatable, but for me not necessary as i want a bass sound that is audible and cuts through to represent the bass part within the sound.
If it sound like a bass then it is a bass....i have lost the count of how many times i have seen players get complimented on their sound by audience members and have the player run it down and say 'it was terrible', it was lacking this or lacking that, to much this or to much that, and tell them it was a terrible sound and could have been better.
So in effect the person complementing them knows nothing about what a good sound is....because from the guitarist point of view it was terrible, but from the compliments it was great.....so they are sort of implying that their audience cannot tell the difference......by replying to the complements in that manner....in effect the audience member can't tell a good sound from a bad sound.
It maybe just me, but i do what i have to do for the stage sound and let others do what they have to do, if others want it their way they can have it their way because i know it really makes no difference to me, but if it does to them let them have it.
It all opinion and speculation what a good 'sound' is, so i let them that want of they want to get into it.....me i am at the bar, in the dressing room, back at the hotel, eating dinner or whatever....what i am not doing is standing on a stage having a difference of opinion about sound.....but hey that's me.