I think checking the tubes is the first easy thing to consider or just buy some Gold Lion 6922's on eBay.
I have a DNA-500, and with my Conrad Johnson 17LS2, the sound is thin at the bottom end; so I went back to my PrimaLuna Dialogue Premium.
However, the ET is supposed to have a lower output impedance than the 17LS2 so, hopefully, it will not be a problem for you.
I would be interested in how you think the ET sounds with the DNA-500, once you have the clarity/muddiness figured out.
Thanks for listening,
Dsper
I have a DNA-500, and with my Conrad Johnson 17LS2, the sound is thin at the bottom end; so I went back to my PrimaLuna Dialogue Premium.
However, the ET is supposed to have a lower output impedance than the 17LS2 so, hopefully, it will not be a problem for you.
I would be interested in how you think the ET sounds with the DNA-500, once you have the clarity/muddiness figured out.
Thanks for listening,
Dsper