I'm honestly surprised you noticed anything at all, afaik the tube is in the power section on that amp and has little effect tonal effect. Save up for a bottlehead crack and build it yourself, that will make a whole nother level of smooth music come out of the 650s. They are also amazing with hd800s as a bonus.
jm090 t1_j5vp4l5 wrote
Reply to comment by GLikesSteak in HD 650 ruined me by GLikesSteak
I'm honestly surprised you noticed anything at all, afaik the tube is in the power section on that amp and has little effect tonal effect. Save up for a bottlehead crack and build it yourself, that will make a whole nother level of smooth music come out of the 650s. They are also amazing with hd800s as a bonus.