Hey Im gonna be purchasing a Gallien Krueger 400Rb III. So I was wondering if the Avatar B4'10 Delta would be a good match for the GK head. The cab is rated for 1400 watts RMS The head is rated at 280 watts at 4 ohms So I guess the question is would I be underpowering my cab with 280 watts. Or would it be fine? ps- Im not rich so I cant really afford a higher watt amp. -Thanks in advanced.