Do you mean GL2? I went to the Allen & Heath site and that's what I saw. This link will take you to the older products area with downloads for the user guide and block diagrams in PDF format.
http://www.allen-heath.com/veterans/
We use mixers to increase our input capacities. If this is baby talk to you, be patient but some people have no idea how to use this stuff, so I'm staring with basic details. The GL2 has four groups and a stereo out, probly 1-2, 3-4 and L-R on the assign buttons on each channel, but this technique works with any mixer of any capacity. You can assign a drumkit to a stereo group by miking up 3 to 7 channels, and assigning them to group 1-2, the first two sliders of the groups. You'd plug your cables from the 1-2 group outs into any two inputs of the 001 unit, like 1 and 2 on the front. If you're using the mixer with a monitor amp, then you'd also assign those drum channels to the stereo L-R buss. If not, the L-R buss gives you another whole stereo buss to work with. The A&H eq should sound really good, so you could try using it to get the tone you want, but its a GOOD idea to adjust it very little. Un-EQing a recording messes with the sound unnecessarily, and messed-with sounds are less clear. You could use a stereo compressor unit if you have one, across those groups to keep from overdriving the inputs of the 001 during peaks, but again compress lightly. If you wanted to do special processing with the snare, you could run it out a direct out of it's channel and into another channel of the 001, like 3. Maybe do the same with a kick, send it direct out to 4. Suppose you were doing a live take with a guitar and bass. Mike up the guitar and send it panned to one side of the next group, like 3-4, but panned hard left so it only goes out 3, unless you want it in stereo. If you do, then send the bass out a direct into the 001 like input 7, then the 3-4 groups panned left and right into inputs 5 and 6 on the 001. This way your instruments are mostly isolated and can be recorded on separate tracks, treated differently with effects, compression or whatever. If there's another guitar player or keyboardist there, then you have to divvy up channels and inputs differently to fit them all in, or record them in different takes, but that's the life of a studio engineer. [img]images/icons/wink.gif[/img]