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markbass little mark tube 800

Hey Cameron,

The tubes used in the LMTube, from what I understand, are small (not the standard 12ax7) and I believe they are actually hardwired in (non swappable). I believe that's one of the reasons many of us hear little difference between the tube and SS mode of these particulate amps, other than the dual tube/solid state pre's volume summing when each pre is set at 50%.

Sounds nice though, and the extra features of the LMTube are probably worth it for some.

I forgot about that. That was the first time I had seen that. I guess they're making small tubes for micro amps now...cool.

Cheers,
Cameron
 
I could be wrong, but if you do that doesn't that double the impedance make the amp not as loud?

No, unless it is a HIGHLY unusual series connection. 99%+ of cabs with dual input/outputs are wired in parallel, making the daisy chaining of cabs identical to running out of two separate outputs of an amp. Zero issue!
 
Hardwired tube? What happens when the tube is burned out?

Preamp tubes virually never burn out. And, my guess is, the execution of this tube circuit is more like the Eden thing, where the tube, quite frankly, does very little (The Eden tube does not vary voltage or whatever, which is why the gain control works much more like a solid state amp than true 'tube driven' pre executions like Mesa or whatever.

Again, if you are looking for an amp with a tube preamp, I would not really look to Markbass. However, their solid state pre's sound more fat and warm than many tube pre hybrids I've played.