Bravo Audio V2 for my HD558

[eliteboy]

Hi there, everyone.
 
Im thinking of buy a Bravo Audio V2, for those that dont know, its a tube's amp that delivers the "tube sound" that audiophiles like it.
 
I dont know if it will be a good match with my HD558.
 
People say that the Tube used in the amp provides a more bright sound and lovely mids, which is different from the signature's HD558.
 
My intentions is to plug in a Yamaha RX-V995 Receiver, with a 440ohms output phones impedance.
 
What you guys think?
 
Im having a big problem with my HD558 because of electrical dampin, boomy bass.
 
I guess it will solve my problems.

 

[connieflyer]

If you are looking for an open frame amp these would be better imo  http://garage1217.com/garage1217_diy_tube_headphone_amplifiers_004.htm

 

[eliteboy]

They seem to be really great, but I think they are to much expensive for me.
 
Another option in particular?
 
Maybe changing tubes?