Sorry for being thick, but I don't get it. Isn't the point of using Aux/group fed subs so that you can tweak the thump when you need it? It is messing with the crossover point for the channels feeding the group, but isn't that the objective?If you just leave a sub group set at unity, what benefit does it give over just routing to LR and letting your crossover do its thing?If you do mess with the sub bus fader, how is that different to tweaking an aux send?I send a few channels to the mono out on our MixWiz, and I'm pretty happy with the result. Yes I can make a very bad sound if I boost the sub too much, but used in moderation I like the ability to easily adjust the sub for the different musical styles we get. What am I missing here?
It depends on what you're trying to achieve, and what kind of PA you have. If you are trying to clean up unwanted LF on channels, bus or aux-fed subs can be advantageous, as you can completely eliminate any sound going to the subs by not assigning them to the sub bus. Completely eliminating signal to the subs using only the channel HPF may require setting the HPF quite a bit higher than you may want to.Using aux-fed subs where you have to dial the amount of sub for every channel, basically turns your subs into an effect - they are no longer a cohesive part of your PA. You may have "adjustability", but I'm not sure that always translates into "control". IMO, this can make sense if your mains go down to 50Hz or so - then you can truly use your subs as an effect, as your mains can stand alone for all but the lowest stuff. Most of the time, at least in the lounge, the crossover point is more like 100Hz, and the subs are a pretty critical part of the system. In that case, I strongly prefer group-fed subs, as it's much easier to keep the sound intact, while you still have the ability to keep things out of the subs that don't need to be there - vocal mics, acoustic guitars, cymbals, etc.
Mac, could you drop in with an explanation of the criticism of aux-fed subs we heard from the head of rational acoustics? I was merely fascinated to understand just the fringe of that whole conversation.
If you are using smaart (a rational acoustic product) it is difficult to get a reference when using aux fed subs. Thus what the analyzer displays in the low freuqnecy is invalid.
What do you use as a reference? One of the left- right? If you selectively pick and chose what goes to the subs, your measurement will not be accurate as the reference will contain material that you have eliminated from the measurement. I am only talking about in-show FFT measurements. Pre-show tuning is not an issue.
I don't use in show tuning as I find the signal is rarely usable with more than 1 speaker system at a time on. I would not be using house eq on the subs range at that point in any case.Mac
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