I notice on the L-1 Compact, the only in for instrument is a 1/4". I use a Red-Eye preamp for my instruments, and it has an xlr out. Any comments on this?
You will probably get the best results if you use an XLR to ¼ inch jack Tip-Ring-Sleeve adapter and run into Compact Channel 2.
If your instruments are guitars, then set the ToneMatch® switch should be in the up (ToneMatch®) position. If you are using other instruments you may be happier with the ToneMatch® switch in the down (Line-Level) position.
I did not know they made an adapter for those. I'm using ukes, vocal, flattop and resonator (spanish) guitars. I've never seen an adapter for an xlr to 1/4".