Hi, I am thinking about upgrading my amp. I play rock music. My two favorites for rig are: 1/ Hartke Kilo + Gallien Krueger RBX 410 2/ Gallien Krueger Neo 1001/212 combo. My questions are: What is the difference between GK combo 1001/212 and GK 1001 and Neo cab 212 when I would buy it separately? Cause it seems completely similar but the combo is much cheaper. Would you buy Kilo or 1001RB head? I know Kilo has tubes inside while GK not. I like the tube sound but I haven´t heard Kilo yet. But I also like 1001RB sound. Also I don´t want Hartke cabs cause I think GK cabs are better and I really like RBX 410 which I had already try. The last question is how is the sound of Neo speakers different from RBX? I´ve heard that Neo sound is totally different from other GK cabs sound. And can Neo 212 handle low B good? I believe yes, but I just want to know. Thank you very much.