Hiya guys, I was needing some help and I know that the amps section of talkbass is the place to go! Ok, so I was speaking amps with the guitarist in my band (who also happens to be a bit of an electronic whizz kid) the other day, and he suggested I mod my current amp setup to allow for cab extensions/different heads. At the moment, I'm running a Fender Rumble 100 combo. My guitarist suggested that I (with his help, duh) modified the workings, so that the head and speaker parts of my combo run seperately. By this, I mean fiddle around so that we install an input jack so I can have output from the head, and another jack for the speaker input. Usually, I'd have a cable running between the two so that the combo works as per normal, but if I wanted to, I could always use this to attach a different head/cab; and even maybe extend my rig. Is this a good idea? I'm confident that between us, we have the skills (guitarist already did it with an old fender amp of his) to follow through with the "operation" and do it cleanly. I'm just worried that it might not work. Is what I'm describing possible/safe? It would be quite awesome.... I'm sure this forum has the answer. Thanks for the help guys.