And since I got the IV I've been gasless for gear and that can't be healthy :wink:
**** funny!
I sometimes find my self wanting more shades of that colour. Less gain, more gain, a different eq setting and such.
Very nice and very clearly said. Thanks. For the less gain / more gain shades of color, this is totally what the Triaxis was built for. You can save a bunch of variations to different MIDI settings and then call them up with the touch of a button. You can also map the gain settings to a MIDI continuous controller (like a volume control pedal) and control it live with your foot. Now that is control!
You should be aware, though, that your desire for "different eq setting and such" might be a little more problematic. Since you've got a Mark IV, you realize that there are two sets of eq controls on your amp: (1) the Treb-Bass-Mid knobs and (2) the graphic EQ. I'm sure that you're also aware that they do RADICALLY different jobs. With the Triaxis, your ability to tweak eq depends upon which eq you're talking about...
With the Triaxis, you have total control over the T-B-M "knobs". You can set them to whatever you want and you can save them as MIDI patches. No problem. Done.
It's the Graphic EQ that might be a problem. To make it one rack space, Mesa had to fudge a bit. The Graphic EQ effect is still in there, but you do not have any sliders to tweak. Instead, Mesa hardwired one particular Graphic EQ curve into the Triaxis. All you can do is bring in more or less of the EQ effect via the "Dynamic Voice" setting.
The "Dynamic Voice" setting is MIDI controllable just like all the other settings, but it is only a "give me more" or "give me less" control. If you want more scoop, increase the Dynamic Voice toward 10. If you want less scoop, dial it back toward zero. Pretty easy...pretty nice...but no control over the EQ shape itself.
Like you, I also own a regular Mark series amp. I find lot of different colors through adjustments on the EQ sliders. If you like to use fiddle with your Graphic EQ as well, you might find the Triaxis implementation to be limiting. Luckily, you can easily fix that situation by putting an outboard graphic EQ unit (or two or three!) in your rack.
Good luck on your quest. It sounds like the rack approach will indeed suit what you want. Definitely look into the continuous controllers, it's a power over your amp that most non-rack guitar players could never imagine.
Chip
Mark IIC(+)
Triaxis/2:90