Can tubes ever be as quiet Solid State

I recently purchased a tube DAC linestage the stock tubes gave a good soundstage and detail. I replaced them with bugleboys and there was a big improvement. I then replaced those with 1950 vintage tubes and the soundstage then became enormous and the dynamics induced anxiety. I have a Accuphase C200 SS preamp that I am going to put back in the loop. As I remember the noise floor was extremely low and it will be intersting to AB the two.

Using a VAC 70/70 MKII which I find gives a totally black background and recently retubed with Sophia carbon plates. The super low noise floor shows defects in related equipment easily. If the Accuphase is as I remember and the upgrade (being done now) improves the noise floor the resulting combination should produce a stunning synergy.

My VAC is as good as it gets but on the pre amp side if the SS is better I would jump for joy as the quality of the smaller tubes produced now does not come close to older NOS tubes. A headache that I can do without.

The trick to getting tubes to be really quiet is the same that is used by transistors- fully differential circuits with really good constant current sources, with a well-regulated bi-polar power supply

This is not to say that such a circuit will be as quiet as the very quietest transistors, but it will sound better and will be quieter than many transistor circuits as well.

Many well-regarded 'tube' phono sections are actually hybrid. Just my opinion, but the idea of installing a solid state filter at the input of a phono section does not work for me. If I'm going to have analog, I want all the detail and the smoothness its known for...

Well designed modern tube products are as quiet as any solid state product out there. I currently have a Mac tube pre amp and amp, and I can turn the volume up completely with nothing playing and there is no sound, complete silence. I have both VLT and ARC products completely silent as well.

I can turn the volume up completely with nothing playing and there is no sound, complete silence.

Was it plugged in?

I have not even heard SS that can do that - not if you put your ear up to the tweeter with the volume turned all the way up.