I bet! What band was it that recorded a whole LP with a ROCKMAN plugged into the Soundboard? Seem's like it was Def Leppard.
You mean as a direct input? Pedal/Guitar? not failure with ROCKMAN, either way it, could be. Don't know the story. It's usually a very strong signal compared to a mic.
If he ran a guitar through his own pedals or effects rack, or nothing at all,.. it's just clean as hell. That said, losing the sound of an amp/speakers where some get their drive would be a change. I would think Jazz players might do that.
I don't think that would be to uncommon in a studio tho.
I did a Moody Blues show when In-Ear Monitors first came out. Also a digital monitor console

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The entire band went direct into the splitter that feeds line signal to FOH and Monitors. Since in-ears, no gtr amps, , no vocals or instruments in no speaker monitors, no drum-fill, no side-fills. Everything went into their ears and FOH.
The stage was 90% DEAD... all you heard on stage was drums, and he barely hit the heads.
Keep in mind, I'm known for capable of high volume monitors (122db), For anything rock, I thump that damn stage, and your chest and feet is going to know it. I make my own hair stand up

I'm now sitting there in almost silent stage during a show, compared. I'm sure I had a blank stare on my face, maybe a tear, thinking,.... if this is where this is going I'm OUT!! lol
I could hear the mains from on-stage, but I heard nothing on stage,.... no hair raising events, dead air. Also, to hear what they hear I had to wear IEMs myself. BLAH!.
ANYWAY,.. Ya I've run into a couple people who wanted direct line. More likely in studio tho. Probably if rock/metal, it would be weird to not get that amp sound,.. BUT, when the gtr player has a large FX rack he can literally make it sound however he wants, simulated amp over-drive and all.