well..one guy on the last meet i attended called my 337: the mighty 337.. And that was with the svetlana tubes in it and not the 5998's i have now..and he was referring to the way how he drove the he500 and even the he6 perfectly..soundwise
I tried almost all bursons and musical fidelity's amps even a violectric v200 and two woo audio's and for my ears and some others also on the meet..the 337 sounded best ( even being one of the cheapest of them all) with the he500.. And on a review i read the reviewer stated the 337 and 339 were one of the best amps for the he500 he heard.
But first of all its ofcourse all personal..and second.am sure there are better amps..but am sure they will be much much more expensive.. As the 337 is a steal for what he offers.. Imho
Well of course there are better and also much more expensive amps out there. I was just picking at you. However, I wouldn't go around saying "It's Know to be one of the best" after 1 meet and a couple of people liking it.
Oh well, I'm sure it's other out there that feel the same about their amps and the HE-500 combo.