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Low Down Sound NCD

NCD (a few days ago). Don killed it. 6x10, neo (deltalites), 70lbs, tiltback casters and top handle, side handles, top and bottom shelf port, 36x24x16 and "cloth" grill with piping.
 

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Tube amps dont like to run a load higher than what their OT's are rated for.

From an EE buddy.
When you run a tube head into a higher impedance you end up generating flyback voltage on the primary side of the OT. Depending upon the severity of the mismatch the flyback can cause arcing and potential output tube and or OT death from very large voltages. Usually a 2:1 mismatch is okay but 4 to 8 is the worse mismatch as compared to 8 to 4 for example. If 4 to 8 was the better mismatch then an infinite load on the secondary would be okay but anyone who has a tube amp knows that results in instant OT death if you try to put any kind of output power into the infinite load. Conversely this is why Fender put shorting output jacks on all of their amps back in the day in case someone tried to play without a speaker load. Its better to short the output of a tube amp as compared to leaving it open.