In reply to:

---

I've actually been told that the ARM processor runs very cool and uses very little power when compared with INTEL AMD etc.

---

That's true, as the main design aim was high performace with very low power consumption.
I've got a strongarm in my desktop machine (overclocked a bit, it's doing about 240Mhz) and it gets hot to the touch, but not hot enought to require a heatsink, let alone a fan... =)
I'd bet the major heat source in the empeg is the screen heater, followed by the power supply...
My JVC head unit gets much much hotter than the empeg, and that's with a fan (and also the internal amp is turned off using the handy menu option) so I'm not worried... =)

Jazz
(List 112, Mk2 12 gig #40. Mk1 4 gig #30. Mk3 1.6 16v)