TYATYA
Headphoneus Supremus
For HD650 driving tube amp, I read on head fi at Dv336 tube rolling thread to order some set of tube base on comments.
There are some headfi-ers use DV336se for their hd650 so can be good to refer to.
From my try, result of Tungsol 5998 and RCA 6SN7GTB (tall glass botle) is good at low/mid/hi especially the mid, very clean, thick and sweet.
Low and hi is not at that best as mid but, still clean, detail ...
Note : my setup has other upgrade include 3.5 to rca cable from Furutech(model ADL i35R) and hd650 custom cable. (I never touch 650 stock cable again!!!). Those make impressive sq improvement and when I say set of tube above is INCLUDING that upgrade.
Dv336se $250
ADL i35R $80
Upgr cabe hd650 $200
Tube JAN-5998 $170
Tube 6SN7GTB $100
With your budget, better tube conditon can avaiable
There are some headfi-ers use DV336se for their hd650 so can be good to refer to.
From my try, result of Tungsol 5998 and RCA 6SN7GTB (tall glass botle) is good at low/mid/hi especially the mid, very clean, thick and sweet.
Low and hi is not at that best as mid but, still clean, detail ...
Note : my setup has other upgrade include 3.5 to rca cable from Furutech(model ADL i35R) and hd650 custom cable. (I never touch 650 stock cable again!!!). Those make impressive sq improvement and when I say set of tube above is INCLUDING that upgrade.
Dv336se $250
ADL i35R $80
Upgr cabe hd650 $200
Tube JAN-5998 $170
Tube 6SN7GTB $100
With your budget, better tube conditon can avaiable