Join Date: Dec 2000
Location: Cincinnati, OH USA
Re: Point to having a rack?
Well, think about it this way... when you buy an amp head, you basically get a preamp that's been mated to a power amp.
When you go with a rack setup, you get the ability to mate the preamp of your choice with the power amp, so you can have additional flexibility. Almost every power amp has different output levels, voicings, etc, so this pairing can be critical to achieving your "dream tone".
Plus, if you use rack-based effects, you can significantly cut down your setup time.
In my case, I haven't found racks (relatively small ones 4-6 spaces) with a preamp, poweramp, and some basic FX to be any heavier than amp heads. Now, of course, if you've got several FX units, several preamps, and several power amps in a rack, then I'm sure it'll make the head comparably light.