I just switched from an Audio Research LS-9 pre (solid state) to a Rogue Audio Magnum 66 (tube). Three things dramatically improved: power-I couldn't believe how much more visceral ooomph was allowed to flow through the speakers! Detail- a nice jump in finesse on strings, cymbals, etc. Warmth- the music sounds more live and is completely non-fatiguing to hear.
Some tube preamps suggest you don't leave them on, such as the Rogue. They use outbaord power supply and a '2 stage' startup with a gentle start for the tubes. To me, the pre sounds fabulous from the get go! As good when turned on as an hour later.
Some tube preamps suggest you don't leave them on, such as the Rogue. They use outbaord power supply and a '2 stage' startup with a gentle start for the tubes. To me, the pre sounds fabulous from the get go! As good when turned on as an hour later.