I've not tried the Mackie Onyx preamps but i've heard many good things about them being a decent low cost preamp for extra tracks etc. The new VLZ4 mixers have Onyx preamps and very low price points. Can something like the 402VLZ4 (which is $99.00) be used as a standalone preamp. I don't see direct outs or inserts but i do see a pan hard left and right button. Would running from the 1/4 main outs left and right work the same as direct outs as far as clean signal path? Would it be just like Onyx 800r or would it suffer from signal path? Hope this question makes sense. For 99.00 this looks like a decent way to get a few preamps. Maybe im wrong.