Use as main speaker amp brings out the best in your power amp and speakers with precise detail that's amazing for a tube amp Warms up quickly to

Headphone amp has delicious spatial effect and staging with rabidly good detail and accuracy and clarity

Great detail, love the mids, and the bass is great

Then I turned up the volume on one of my fav T swift songs and was SHOCKED at the transformation the song went through upon passing through these vacuum tubes