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Tube vs. Solid-State Amps

I haven't seen any statement about digital modeling in that thread (and Agedhorse has just confirmed there's nothing digital in that amp). Can you be more specific?

Maybe you think that the "D" in "class D" stands for "Digital"?
My apologies! I saw that there is emulation going on to make it perform like the 400+, down to damping factor, but being blind I didn't read the details and only assumed there was some DSP going on. I just read the clarification on that.
 
All seriousness aside, I switched to lower-powered tube amps exclusively 13 years ago when I got a Bassman 100T (100/25 watts switchable) and 7 years ago added an Ampeg PF-50T (50 watts). Originally playing cover rock, now for 10 years barrel-house blues. I specifically went lower powered so the power tubes can be pushed just shy of saturation and breakup at reasonable volumes. I say the magic of an all-tube amp is 20% or less from the preamp tubes, 80% and more is from the power tubes. The power amp section of the tube amp is where you get the "sag", or self compression, that tube lovers dig. In a well designed tube amp the sag can rival a studio compressor in quality but reacts much more organically than a hardware compressor. Forget about a pedal compressor even approaching it. Aside from the sag, the amount of harmonics the power tubes start generating as they approach breakup is glorious. And again in a well designed tube amp you get a very satisfying bark, grunt or growl (depending on the amp) when it does breakup, not a raggedy f*rt as from a solid state amp. In order to get to this point with a 300 watt SVT or Super Bassman, you'll be melting faces if you're in anything but a very large room, hopefully it'll be outdoors. Both my tube amps have post-output transformer DI's, which is post-power tubes with cab modeling, so you get all the power tube glory to FOH, or recording interface, without having to mic the cab. Tube overdrive/distortion/preamp pedals, or tube preamps in hybrid amps, do not at all deliver the sound of an all-tube amp. Maybe a good sound and a sound you like, but it does not have the properties of the tube power amp. Preamp tubes can exhibit their own amount of self-compression, but In the power section it's the result of other factors outside the power tubes and it's the interplay of those that make it much more organic and amorphous.
A few weeks ago Mesa released the new Subway BD-800, with a tube preamp and digital modeling in the class D solid state amp that emulates their classic 400+ tube amp. I liked what I read and got one of these. Although it'll never replace my tube rigs, it acts more like a tube amp than any hybrid I've ever played. I'll more than happily use it on gigs with difficult load in/out or gigs requiring lots of stage volume, the BD-800 being 800 watts. Really never thought I'd play solid state again, but I like this Mesa amp very much.
EDIT TO ABOVE!
I had assumed there was some dsp happening in the BD-800's tube power amp emulation. Not so. Nothing going on dsp-wise.
 
A Music Man amp will satisfy that.
This highlights why we don't have any commercially available amps like this today... it just wasn't all that commercially viable as the industry passed MM by.

It doesn't mean that it can't or won't work, just that the trade-offs weren't what the market was looking for or was willing to accept commercially. It it was commercially viable, we would see current examples in the marketplace.
 
Which camp are you in: tube warmth or solid-state reliability? What made you choose your main amp, and would you ever switch?
I feel my solid-state stuff is warm. It has been reliable. Never switching to tube bass amps. Never. My Fender Rumble 2X10 combo at 38 pounds is (I think) one of those "Class D" amplifier/power sections. I'm not going back to a heavier bass amp, ever.

But...

For guitar: My Fender Deluxe Reverb Reissue is of course tubes, but it is only three pounds heavier than my Fender bass amp. A keeper. My Fender Blues Junior FSR (tube) with a (stock) Cannabus Rex speaker is about 30 pounds. Also a keeper.

It's not the technology I prefer or dislike. It's the weight and sound.
 
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Completely and totally flawed premise. I’ve been playing 55 years and I have had almost exactly the same number of “on the gig” failures with both tube and solid state. I don’t know what these guys who whine about all the maintenance tube amps need are talking about. I use a stock Fender Deluxe Reverb Reissue for a practice amp at home. I run guitar, bass and keyboards through it and I’ve had two issues in the last 10 years. I bought it in 1994 and for the first 20 years it was flawless. I’ve had a couple of SVTs that were also never in the shop.
 
I have yet to hear an SS rig that completely captures the magic of hot power tubes, but my SS rigs get reasonably close: i.e. definitely not sterile!

The reliability difference has already been refuted. I choose SS Because Smaller and Lighter.

Oh, another factor: my 70s SVT became magical when it was run at the sweet spot between too clean and too dirty. This was my subjective sweet spot of course, but the bottom line is that it was LOUD, and I didn't often have the opportunity to push my stage rig that hard. A wonderful advantage to SS is that you can dial in the same level of overdrive at any volume.


Anyway, if I didn't have to schlep my own gear: all tube, all the time! But again, I'm happy with the tone of my SS gear.
 
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I've always preferred solid state overall. I default toward maximum clean headroom with a minimally colored, full-range sound, with any drive coming only when I kick on pedals. I'm not in any way suggesting tube amps can't provide those things, but I've personally had great results with solid state when looking along those lines.

"Warmth" is not something I tend to go for in most situations, and I'm happy to use something like a lower gain drive pedal with a vintage-skewing color to go for a "warm" sound in the rare situations that I want it.

I have no comment on reliability of solid state versus tube amps on average since I don't have sufficient experience with tube amps.
 
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It's a question of flavor - and weight.

I do like my Markbass Little Mark Vintage head (with tube preamp). It hits a good balance between clean and warm tone with a little bit of grit, depending on EQ setting.

My next head will be an Ampeg SVT for more grit, I like the tone of overdriven tubes.
 
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