Template:1/4 TRS to 1/4 TRS
The output side is ¼ inch jack Tip-Ring-Sleeve and the input on the L1® is ¼ inch jack Tip-Ring-Sleeve so use a cable like this.
{{#Click:http://www.audiopile.net/products/Mic_Instr_Cables/IP-101/IP-101_cutsheet.shtml%7CImage:TRSBalanced.png%7C300px%7C1/4" Male TRS to 1/4" Male TRS Cable.}}
1/4" TRS Balanced Patch Cable (audiopile.net)