1/4" Input Jack

UPC: LIN-O-970010006

1/4" input jack used on many Line 6 products
Price: $3.99
If your product has a threaded jack with the little black plastic nut, this is the jack you need. This is the same jack used on DL4, Spider I, II, and III amps, Flextone I and II, and many other products. 21-00-6616
A list of support manuals can be found at http://line6.com/support.