I’m always curious, I found this interesting
https://en.wikipedia.org/wiki/EL84
I’m guessing the ’extra gain’ is why Luxman used them in my SQ-N150
https://www.luxman.com/product/detail.php?id=33
which sounds quite nice, just enough power (10 wpc @ 6 ohms) for my office AR-2ax (sensitivity 90), to let me use preferred tubes without heating up the room.
Just saying, it’s beyond your budget, beyond mine too, but the size, etc was ideal, and years later, I’m very glad I spent the extra money.
I often say ’Think Long’, and ’sell some stuff, stop going out so much, .... whatever it takes to get you there, for a long time, perhaps I’ll have it checked out in a few more years, and it will ’see me out’.
Another thread, someone wants an amp to last 20 years. Better think about if the company will still be around, and if they have a history of supporting their equipment for a long time.
btw, when I bought it (very lightly used), I had return option because I never saw or heard such a dinky little power tube. Oh, I kept it.