Really...My favorite power tube is reissue that's not widely popular


If you run 6l6/EL34 variants, I HIGHLY recommend trying this tube out.  The Tung Sol 7581A reissue.  I've had these for a good bit of time and compared them against KT150s, EL34s (several brands), KT88s, and maybe another that I'm forgetting.  They are a mere $30 a pop and they are the best tube I have heard. I know that's a brave bold statement to make as there is so much competition out there and the tube is very much under the radar from what I can tell.  

After having these around for a long time (and in and out of the amp), I had them in and was nearly spellbound one night by how great they sounded upon reentry into my amp.  I did a search and could only find one review, which I agree wholeheartedly with.  You can find it here: https://wallofsound.ca/audioreviews/amplification/6l6-vacuum-tube-review-tubes-courtesy-of-www-thetu...

I am nearly incredulous there isn't hype out there about this tube.  Simply my favorite tube.  I thought I'd pass this along as it may be much cheaper to give them a whirl then fuss with a much more expensive power cord, cable, or other tweak.  
128x128jbhiller
Based on these postings, I have a quad of 7581A coming on Monday. I've been using the Gold Lion KT77 as my power tubes, they are truly outstanding and no complaints at all.....I'll post a comparison of the two tubes eventually....to me, more tone is always good if not syrup.
Maybe some artistically applied gold meanderings on the 7581As whoud make them seem more welcome around the 77s.
I have some 7591a Tung sol. They’re by far the best new power tubes I’ve got in the last decade. They were 30$ each and I love them. 
They are as good as some nos GE or Westinghouse tubes but much cheaper. 
tuberist...have you had a chance to do some comparisons? I purchased 8 for Primaluna Dialogue Premium HP amp. Looking forward to the comparison with the stock EL34's.
arch2....I've been running the 7581a now for several days after replacing the Gold Lion KT77. In my PrimaLuna I like the 75s better.....much more tone, the sound staging and the detail is comparable to the Gold Lion....both tubes are wonderful, I prefer the Tung-Sol because the tone is stronger and the bass deeper and more fleshed out.