My hd6xx sounded good, balanced/restrained on my solid state amps really just enjoyed them without eq, but once I added OTL tube amp, it was a moment (jaw dropping) of no return, the hd6xx sounded amazing and addictive, you will definitely crank the volume, only negative is the sound leak becomes more pronounced. To best the hd6xx+OTL combo, you need to spend a whole lot more than 200 for the hp like >1k
My hd6xx sounded good, balanced/restrained on my solid state amps really just enjoyed them without eq, but once I added OTL tube amp, it was a moment (jaw dropping) of no return, the hd6xx sounded amazing and addictive, you will definitely crank the volume, only negative is the sound leak becomes more pronounced. To best the hd6xx+OTL combo, you need to spend a whole lot more than 200 for the hp like >1k