300B or 845?

am new to tubes.
I have read the archives.
Can anyone explain the inherent differences between the sonic character of 300B and 845 tubes?
Given the amp cicuits are good and built to utilise the strengths of the tube - what differences are audible on 96db sensitivity speakers?
My music is all acoustic - and 90% is female vocal. I love the sound of a sweet intimate vocal - there are not that many - plus single instruments: guitar, viola, flute, fiddle. I like melody and rhythm. I don't cope with massed instruments be it orchestral or rock bands.
Any advice is deeply appreciated.

Showing 1 response by onemug

Read what Jax2 said twice. Also, 96db is only part of the equation. Not falling much below 8 ohms is important. With the right speaker the 300b might be the ticket for your female midrange and acoustic music. The more demanding the speaker the 845 might move ahead. Once you listen to both, one will draw you in more. If you can't listen to both, make the best guess. Good luck.