The best Gain Staging information is contained within the instruction manual. However, you can find some more details on the procedure Here .

In my setup I set the PSR-3000s master volume at approximately the 1-O'clock position, which seems to provide the best signal to noise ratio from the keyboard's outputs. Then by following the instructions in the manual I set up both the L1s left and right channels accordingly. When the indicator lights turn red, back off the L1's channel gains until they hold a steady green, then you are ready to go. At this point when increases in volume are needed the only gain control you will use is the master volume of the remote.

Keep in mind that this is NOT a conventional sound system. If it sounds a bit loud to you it will sound equally loud to the audience. The falloff is minimal throughout the venue, which is something to take into consideration when setting the master volume.

As for the presets, these will vary with each venue. For the most part, 05, 55 and 57 are pretty much standard for keyboard and vocals going through the keyboard's vocal processor. Of course, your keyboard's EQ settings and your onboard vocal processor EQs will have some bearing on the overall sound as well.

I try to be as efficient as possible when it comes to setups. I do not use a mixer and do not set up a guest mic unless it is requested in advance of the job. If I need a guest mic I fire it through a small mixer and into channel 4 of the L1. Channels 1 and 2 are strictly for the keyboard. Channel 3 is used for the audio output of the laptop for Mp3s which are used before I begin a performance and during short breaks on longer jobs.

I personally know a couple dozen individuals that have purchased the L1. Of them, only 2 have returned the system, and one of the 2 never set the system up using the gain staging technique outlined in the instruction manual. Some are OMB keyboard players and vocalists, while others are guitar players using either backing tracks or drum machines while singing. Nearly all said they would never go back a conventional sound system.

I have two backup systems here--the Logitech Z-5500 and a single Barbetta Sona 32C. The closest in sound quality to the L1 is the Logitech Z-5500. The Barbetta Sona 32C, which I previously owned before purchasing the L1, is an excellent, CONVENTIONAL, sound system. It is Bi-amped, 450-watts RMS and really packs a punch. However, IMO it does not provide the clarity and distinct individual sounds of the L1, and I have played using both extensively.

Hope this helps,

Gary