Gain staging is not all that complicated. It simply coordinates volume mixes between your keyboard, mixer (if you use one) your mic and the Bose volume controls, which on Model 1 is a very basic remote with eq, channel volume and master volume controls.

For instance, without gain staging you could be red-lining on your keyboard but not on the Bose creating distortion prior to attaining the total output volume you want.

I can't speak for Model II which comes with the really cool T1 mixer, but on model 1 of the L1, there are 99 presets to choose from. Not all presets contain data yet, but there are plenty and a guide that comes with the unit recommending certain presets for specific instruments and brands/models of mics.

Shortly after I got my Model 1, Bose came out with another version of the presets, which I downloaded from their website and installed into the power stand. I have found four presets that I really like for my keyboard and vocals...and choose between... depending on the stage and room conditions I am playing on and in.

Okay...I know this sounds foreign to those who have been using conventional systems since their Garage Band Days. And, I am not saying it is everyone's cup of tea. But, for me and many I know who are using either of the models, Bose has created a system that, IMO, is superior to any conventional system I have used --- sound-wise, weight-wise, looks-wise...and has a smaller footprint for playing tight areas, decreasing liabilities from folks tripping on tripod stands. Easy to set up. Easy to transport. 180 degree sound dispersion. Feedback resistant. And, no need for floor monitors.

I'm not even sure why I am writing this. It would be okay with me if none of my competition ever got the Bose. But some have and all but one love it. The one guy who doesn't is a KJ guy who went overboard, bought two units and four subs...didn't take the time to learn the ins & outs, read the manual or ask questions of their amazingly helpful techs on their website... and thinks it has to be as LOUD and in stereo just as his conventional system is up on stage.

Since it is so different, I highly recommend you try before you buy...or take advantage of the 45-day return policy offered by Bose...and maybe GC...not sure about GC.

Follow the Gain Staging instructions. Experiment with the presets. And as silly as this sounds, when hooking up the sub, be sure to twist the "speak-on" connection at the power stand and the sub until it clicks. Even some of the sales guys at GC have been known not to do that and lose a sale because there was "no bottom end".

Yeah...I am hyped about Bose. But, I shall refrain from any more preaching. It is not the only good system out there...and certainly not perfect for everyone.
Eddie