what the heck ! I payed for no ads in Rayman Classic , but am still getting ads ! <| sep |> Chevykun got unstuck when Dodgesan showed up , but Dodgesan got stuck in the tractor rut , which eventually pulled out FordchanpDY 6 bWT 5 oTM <| sep |> Thanks heaps dude <| sep |> That shit made money ? I ' m actually fucking surprised . <| sep |> So why didn ' t you just edit the post or just tell me and not delete the entire damn post . <| sep |> It does seem like overkill for such an easy to drive headphone . They don ' t really need an amp to begin with , and will work straight from most portable devices or a computer without complaint . But I don ' t really see how it is a terrible match . The amp output impedance is 3 . 5 ohms on low gain , and the HD 598 is a 50 ohm headphone . You should keep the ratio at less than 18 th in this little measurement , and 3 . 5 x 8 28 , well below the 50 ohm mark . The high gain setting is another matter , since the output impedance there is 14 ohms . Of course , I ' m going by figures found on the net , so I ' m just assuming these are correct . If you are buying the Valhalla 2 just for the HD 598 , I ' d say get something else . If you intend to keep it for later headphones that are harder to drive , it should work ok for now as long as you keep it on low gain .