Post fader, or in this case post knob, taps the signal after gain, low cut, eq, and the level knob. This means when you lower the level of the channel in the main mix, the level to the aux goes down as well. This can be OK for reverb and delay as you most always want to hear the dry signal mixed with the wet fx signal. You will want those fx to be set to 100% wet to be mixed back in. Pressing mute which actually routes to a second alt3/4 output bus, will mute a post aux…
Pre fader taps the signal after gain, low-cut, and eq, but before it goes to the level knob. This means you can turn that channel all the way down in the mix, and still have your signal being sent to aux. This is the only way to get 100% wet effect signal with no dry back into the main mix… Pressing mute/alt3-4 does not affect a pre aux. You would probably want this for filter/phaser and any fx you want to hear 100% wet…
Aux 1 can be pre or post, and also has a master aux 1 level to lower/raise all of the channels that have aux 1 turned up together.
Aux 2 is always post and there is no master level so must be controlled individually for each track…
Both are mono outputs that accept trs or ts cables, the stereo channel pairs get summed to mono for aux output…
I really like this mixer a lot, it sounds really good, is built well, and the size is perfect…
The alt3/4 bus is actually an incredible way to send stuff to the OT, or any sampler. Just press alt3/4 on any channel you want to sample and the signal is dropped from the main mix and sent to sampler, and with the right monitoring set up you still hear the soundz…