These are my favorite "Grados".  With flats the bass is incredible.  The midrange is so lifelike you are taken to the front stage of a concert.   I've tried a lot of headphones and these are what I always go to and the price is reasonable. Mine are the i (latest improved) version.  I highly recommend these to anyone with a Solid State, Hybrid, or OPT Tube amp.

IMO these give up to much Grado magic.  For about the same price you can get Allesandro MS-Pros which beat these in midrange and even bass if you add flats.   The electric guitar just doesn't imagine as nicely with the HF-2s as other Grados.  I actually preferred my MS-1s.   Another anoying quality is that the HF-2s sound muddy with flats or comfies so you are stuck with bowls.