Cryo treatment of metal things with music coming out of them

[jmaf]

Philosophically, and not technically because I don't have anything to back this up, I think tubes are more alive than transistors precisely because they'll get some acoustic feedback.

I told this to a technician here in town the other day. He replied "you mean if the tubes are far away from the speakers, you're saying we'd have a different tone". Yep!

I was trying to explain how attenuators will never ever achieve anything close to the real thing, because the vibration of the speakers on us, on the tubes, the moving air, the resonating cabinet, etc, will never be replicated electrically by just soaking up power.

[Steve Conner]

Oh man Enzo, that was a cheap shot. You're milking this for all it's worth.

If that is true, then tube microphonics are basically just a kind of spring reverb with small, weird shaped springs.

[big_teee]

Philosophically, and not technically because I don't have anything to back this up, I think tubes are more alive than transistors precisely because they'll get some acoustic feedback.

I told this to a technician here in town the other day. He replied "you mean if the tubes are far away from the speakers, you're saying we'd have a different tone". Yep!

I was trying to explain how attenuators will never ever achieve anything close to the real thing, because the vibration of the speakers on us, on the tubes, the moving air, the resonating cabinet, etc, will never be replicated electrically by just soaking up power.

A good example of that is the Head vs the Combo.
IMO the Head sitting on top not in line with the vibrating speakers, would have to be a better deal!
T

[Chuck H]

I did have occasion to build two identical (or as much so as possible) amps with one in a combo cab and the other as a head. I do hear the effect of resonances on the tubes in the combo. If I plug the combo output into the heads speaker cab the two amps sound the same. If I plug the head into the combo cab the two amps do indeed sound different. And though I'm usually all for eliminating stray and random influences on my tone, I think I like the effect of the speaker and tubes in the same enclosure. It does interesting things. Well, as long as it remains subtle. When power tubes go all jingle/jangle microphonic that doesn't sound very nice at all.

[big_teee]

Another thing I noticed was that I seem to have less Single coil AC Hum with the amp on top.
Chuck did you try that with the 2 amps?
T

[Enzo]

Steve, I don;t know beans about it, but seems to me this is grounds for a disagreement. Trouble is brewing. And trouble is not my cup of tea.


Au lait? Er, OK?

[Chuck H]

I didn't make a note of that. And the two amps are seperated now. I am still in touch with the owner of the combo (Dean Markley ) and the head and cab has landed back in my posession. I can't really get the pair back together though because Dean technically owns the head and cabinet also. So if I take the rig to his place for testing it would likely end up staying there. Couldn't let that happen! I might just tell him that I have some "circuit upgrades" to make on the combo and take it away for awhile though. Next time I get to Cali.