no, i dont need a new one, i just have a question.
i own the gallien-krueger backline 210 and i kno that i can add a backline 2x10 or 1x15 cab. but my question is, can i add a backline 4x10 to it or will it just screw something up?
just make sure that your ohms doesn't get too low.
general rule of thumb.
2 cabs at 8 ohms daisy chained will reduce your ohms to 4. Most speakers are approximate resistance (ohms).
You can put a meter on them, and get the actual reading.
If you push too low of resistance (ohms) it can fry your amp.