Hi, Danny. That's what I figured and thanks for following up about the Aux send thing (which I ignored in my last post). I'm starting to formulate some alternate uses for those even if currently I've got the Channel Access points working well for now.
Now this is kind of a combination question for you and smallstonefan (and a reply to smallstonefan)...
In regards to the "buffer" between the guitar and other devices smallstonefan mentioned. I've always operated on the assumption that an instrument level signal (most importantly my guitar) absolutely requires something to bring it up to proper input levels BEFORE being attached to a mixer input.
I figured in my ignorance this was some kind of magic electronics voodoo that simply must be obeyed. I've attached guitars directly to mixers in the past just to see what would happen and I'd be able to get a signal but it was always very weak and crummy sounding so I just followed the premise of "don't connect a guitar straight to a mixer because it sucks". Those were all really pretty crappy mixers though that the Mackie puts to shame. I will be doing some experiments on my own but the following is kind of where my head has been wandering so if ya'll have the patience to read it maybe you can just say "No, that's stupid. Don't do that." or "Yeah, that might work. Give it a shot".
But seriously this is a pile of crazy so only read/ponder if it is convenient/interests you.
As I learn more about my mixer (and mixers in general) and the various levels that devices output as well as how mixers and other devices can compensate for lower and/or higher signals coming into them I'm wondering... if a mixer can make up for a low output device via input trim and other adjustments and I am using high output pickups (but not active pickups at the moment) is it actually possible to plug a guitar straight into a mixer and get a reasonable signal?
The Mackie specifically talks about being able to take "Instrument Level" input but only alludes to keyboards (which I always figured outputted at a higher level than a guitar). It claims that because of the very wide range that the input trim has that it can manage all sorts of input levels so maybe... just MAYBE I could use it as a splitter.
I am very skeptical but I also remember yourself, Danny, talking about plugging straight into your mixer for certain things and then out to various doodads but didn't quite grasp whether you meant straight into the mixer or whether there was always something in between the guit and the mixer or whether it was a fancy mixer that could bring guitar outputs up to the proper level.
So the basic question at this point I guess is... does the so called "Hi-Z" do anything more than turn up the volume being recieved by the guitar? If so... what? If not how much db should added to compensate?
Aaaaand now I'm gonna start getting weirder so if you've gotten this far maybe you want to just ignore the rest buuuuuut....
I have a pile of Boss and other pedals that all have output level controls which raise levels up and maybe add some "buffer" (I did used to use pedals in between my guitar and the multi in on my Layla which I think has some kind of auto detect for Hi-Z and it worked well enough).
Aside from not getting all the sweet textures provided by running through an amp or a pre is there REALLY anything wrong with plugging the guitar straight into a mixer (or into a pedal then the mixer) IF you are able to compensate for the lower volume on the board or elsewhere (after it is outputted to other devices or the DAW)?
I'm starting to get the impression the only problem is that it is quieter and turning it up would raise the noise floor BUT if there were say a Boss pedal with an output control to raise the level BEFORE it hit the mixer perhaps that could help.
The Mackie trim is set so that if you have it set to it's lowest point, but it is receiving a signal from a pro output device at +4db when you turn up the fader to Unity you will hear it at proper levels and it should be all good.
At it's HIGHEST setting it can take a -10db output and bring it up to that +4db. I'm under the impression the output from even a high gain guitar pickup is still below -10db BUT that could be compensated by increasing the output on a pedal (such as one of my Boss pedals) and/or turning up the fader (there is a LOT more room above unity on this mixer) or made up for after it is outputted from the mixer (like in the DAW or perhaps routed back out to another hardware device such as an amp).
aaaand now where can I send those signals....
So if all that is possible with minimal sound degradation then I'd like to know whether the mixer line outs could actually be routed out to a guitar amp's input jack. Now I wouldn't expect that to be possible but hey... I'm dreaming and scheming here so maybe if I used the Aux outs with the output level control perhaps just nudging it up a little (as opposed to unity) maybe that could mimic the signal the input jack would receive from a guitar. If this is possible it could go to the Line6, the Traynor or the other weird little amps I have around (or maybe power amps for stereos I have or other mixers or amps I haul out of garbage or borrow or build myself, etc)
My Traynor has a "Low" input jack that, based on the archaic manual, implies it can be used to take input from a mixer turning the amp into a monitor (it also says to use it for high output guitars if you want more range out of the drive channel but the thing is from the 60's so their idea of Hi Gain is a little... well not modern and it isn't really that great for plugging straight into IMO). So maybe that input could get fed by the mixer then fed out the XLR line out back into another channel on the mixer and then into the DAW.
That would allow for a LOT of crazy routing options for me and put every piece of rig I have in action at once.
So yeah... that is all a little crazy (sorry) but I really want to get my head wrapped around what I can and cannot get away with in regards to my hardware and input routing now that I FINALLY have been physically hooking things up. I'm learning a lot on my own but you guys ALWAYS give me many new things to consider even if I can't afford the more proper devices that get recommended.
Hey... if Tom Waits can record some of his insanity sitting in the middle of a junk heap and connecting all sorts of ridiculousness to other ridiculousness why can't I, eh? lol
Cheers and sorry for being crazy... but hey... that's what makes a beeps a beepster... or something.