My current combo comprises the HD650 and 339 with RCA 6AS7G and Telefunken EF800 tubes.
Especially when listening to some female singers, such as Diana Krall and Norah Jones, I feel that the vocals became slightly too forward and emphasised from the overall presentation.
Have been reading this thread for a while now and my thoughts are that I could give the 6SJ7GT mesh plates or 6J5 tubes a try. This would at least reduce the gain as far as my interpretation goes.
What would be your recommendation? All suggestions are greatly appreciated.
I have tried ef800/6as7g in my system ring and I couldn't find the vocal presentation to be forwarded much, maybe a bit but changing the digital source will do. Still thinking that the combo is worth to have not only because is easy to get and relative cheep but for the sound, which is really good also couldn't find to be bright too I'd said rather "live".The ef800 have a lot of gain in conjunction with DAC which outputs much more then 2V RMS and with sensitive headphones can significantly reduces the headroom so u will get loud on beginning of scale and that could sound even aggressively.