Tube Suggestions 6922 4 pathos Classic one


I have a Pathos Classic One that needs some warm tubes with good bass.... Any suggestions?
indigosax
Hi:

I have the first version (50w). It sounds very different with diferent kinds/brands of tubes.

If you are looking for a good pair of tubes try this ones:
-Amperex 7308 PQ white or orange label, Holland or USA
-Amperex 7308 PQ white label, D getter type, Holland or USA.
-Telefunken 6922 CCa (early type)
-Siemens CCa (early type - with grey plattes) - best of the best!

Good auditions :)
Pardon my ignorance, but it is the first time I hear that instead of the 6922, a 6H23 tube can be used. What is the origin of this tube, I mean, what manufacturer and date can be considered NOS....the first time I heard of this tube is that it was being used in some BAT gear, I thought it was a sort of super tube, usually made in the old Soviet Union or something. If this is the case, what are the advantages of using this tube instead of the classic and now, almost non existant stock NOS 6922 and EC88s?
You should look up "Joe's Tube Lore" over on the AudioAsylum FAQ. He's goes into great detail on the 6DJ8 family of tubes. I have found his observations to be reliable. For a warmer sound you could try an early '70s Siemens 7308. They aren't as pricey as early CCa versions and would give you a taste of the 'Siemens' sound; warm, larger images, softer focus.