2. amps-preamps
  3. 1446582477

Solid state power + tube pre or visa versa?

Over the decades I've run solid state preamps with tube power amps and the other way around without being able to say which combination is necessarily always going to be better. I'm about to replace an entire system lost on a flood and find myself wondering at a recommendation that the combination of solid state preamp with tube power amp is ALWAYS better. Wanting to reduce my shortlist of potential amps I wonder if anyone has has a theory as to why these claims are made, a scientific one that is.
At the moment my short list is headed by the same Leban preamp I lost with a pair of bi-amped solid state power amps. Any thoughts?
Speakers are yet to be considered - I know - I should audition them first then choose amplification . All I know for sure is they WONT be horn loaded and highly efficient. Something like the top KEF's reference series maybe.
dismord
unsound
7,318 posts
 
Dismond, if you're still there, listen to Almarg.
I will add to his points: though it can happen with the opposite technology in the opposite parts of the chain, it's more likely that the high input sensitivity of some ss amps might make the high output of some tube pres volume controls so sensitive and restrictive to become a hindrance.
atmasphere's avatar
atmasphere
11,667 posts
 
it's more likely that the high input sensitivity of some ss amps might make the high output of some tube pres volume controls so sensitive and restrictive to become a hindrance.

This statement is false. What is true is you have to be aware of how much gain the amp and preamp have such that the combination works with the loudspeaker you have.

Some tubes amps have high gain others do not; some transistor amps have high gain others do not (for example the Pass amplifiers have the same gain as our amps do); some tube preamps have a lot of output while others do not and finally some transistor preamps have a lot of gain while others do not.

If you have a speaker of high efficiency its likely not to work so well if your amp has 50 db of gain and the preamp has 20 db. Conversely it won't work so well if the speaker is 85 db and the amp has 25 db of gain and the preamp has only 6 db or none in the case of a passive.
unsound
7,318 posts
 
^Did you read the preface posted before what was excerpted?
atmasphere's avatar
atmasphere
11,667 posts
 
Yes- that part is not false. Just the statement as I quoted.
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