You'd be better suited with a SR60e if you want it to sound 'fun' and 'energetic', because the HD 598 is very calm in a good way. You want to have fun and feel euphoric when listening to your music? Stay away from the HD 598, and buy a Grado SR60e/80e which have similar treble to the HD 598 but are much more energetic and lively. I don't think that you will want to be bored to death when listening to Rock/Metal... won't you? Oh gosh, is like that the SR325e is made for you! Perfect for your needs: awesome bass-mids-treble, not grainy at all, up-front energetic with a brutally-heavy bass which has great impact and texture. God-like mids with great realism with vocals and instruments, and unlike the others above, this one is made of great materials. This is your headphone. If you have 300$ go for it. PD: I had an SR325, I know what I'm saying.