Cool...thanks for the update. I find the T51p's have as much bass as I'd like. I wonder how the Solo2's would compare to the Monster DNAs (on-ears)? I have them here and I need to set aside some time to add them to the listing.
What setup are you using? Of all the Grado's I've owned through the years (SR60/80/125/225i/325i/RS-1/RS1i/PS500/HF-2/PS1000/PS1000e....man I've owned a lot of Grado headphones ), I find that the PS1000/PS1000e's are most "receptive" to upstream amping/dacs/source.