Hi, The head I just ordered (Kustom Groove Bass 1200) only has hookups for Speakons. Having never used these before (1/4" in the past) I went to go order some cables online. It appears that there are different versions of the Speakons. NL2, NL4, NL8, etc. Is there a standard for what most (if not all) heads use? I looked on the site for my head (Kustom.com) and also downloaded the manual and nothing states what kind of Speakon to use. I may call or email Kustom if nobody here knows. Thanks!