Pair of Tung-Sol 7581A New Production Power Vacuum Tube

I play in the clean channel, all the time. I recently swapped out some questionable tubes in my Deville for the Stevie Ray Vaughn lineup plus these new 7581As. Thrilled with the sound. Tube lineup: P1 - 12AY7 (ElectroHarmonix), P2 - 12AX7 (EH), P3 (PI) 12AT7 (EH). Then, these matched 7581As. Finally have the clear tones in the 3-5 volume range where I get control from going to soft rhythm to lead with the guitar volume and tone.

Same midrange as El34s but with better top and bottom end. I'm using them in a Boyuu Reisong A10 amplifier and the results are spectacular.

Very good tube