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
invictus005...did you just get upset at your computer and forget you were typing? Your phone just burst into flames? Noticed your own shirt? The dumpster from the Chinese restaurant next door? 
In contrast, the EL34 can be a touch droopy and slow. It also lacks a bit of the whole spectrum while focusing on midrange. The 7581a gives a broader view like a KT88 but with charm and romance in the midrange. 
But I should note I like tubes like I like women. All are beautiful in their own right. Some just do it for me more than others. :) 

I will compare my notes and make an update with more details. 

I sgoujd akso note note the Gold Lion kt77 is the only one I really need to try so I can’t comment. I hear from others it’s super.  I don’t think you can go wrong with anything gold lion.  I love my GL 300bs and others.