Re: comments on the mesa f-30 head or nomad heads ?
I've owned a Nomad 2x12 combo, the 45 watt EL84 model so it didn't have the graphic eq. Insanely flexible amp, much better sounding than the rectifier models, the gain structure is less buzzy, more marshall-ish if you well...I should say more JCM800 marshall-ish as plenty of marshalls are buzzy too.
The only gripe I had was that for a dedicated channel the clean side had very little headroom and it was really difficult to balance things out. But EL84 amps aren't going to have lots of headroom so I guess that's to be expected. If you're looking at a Nomad 100 then that shouldn't be a problem.
I highly recommend the Nomad on all fronts, especially since they are such a great value on the used market these days. One of the best lines that Mesa built, in my opinion.