• TalkBass has been independent since 1998. Add your voice.
    Create a free account to reply to discussions, view embedded media, and browse with fewer display ads.
    Join freeLog in
    Want zero display ads or expanded classifieds tools? Compare plans.

External Speaker Jacks ???

So... the ohms part of your question is answered in the ohms FAQ, which you should read through.

The purpose of an external speaker jack is to add an additional speaker cab so that the amp's sound is coming from both the built-in speaker and the external cab. The reason it has an ohm rating is because all cabs must have a specific ohm-rating relationship to each other, and to the amp, in order to work well and not burn up the amp.

That relationship is described in the FAQ. :)