a couple of things to keep in mind:
- SR80 is NOT a basshead phone! It is the most bassy of the lower level grados... but that still is pretty bass-light (but tight and punchy) compared to some other brands/models (Senns, DT770, Denons Dx000,...)
- I dunno where you live, but outside of the US, grado headphones are way too expensive (and they can't be ordered from the US either). You could still 1) buy used from this place, 2) go flea-bay (and lose warranty) or 3) go Alessandro which ships worldwide (and shipping is included in the price as well)
- grados are suggested for rock over senns because they are in-your-face fun and slightly aggressive while the senns are a bit too polished, polite and according to some veiled to allow rock/metal to shine. I use my grado SR-60's with postrock, experimental/prog rock, drone, sludgecore etc and the senns I auditioned could never bring me the same joy (YMMV).
- Alessandro headphones are essentially headphones closely resembling grados (built by grado) but more tuned to suit musicians (a bit less "fun" and a bit more "neutral" but still much more in-your-face than senns and less flat/dry as a K701)