If you could upgrade from the SR80i and money was not an issue and Rock was the music of choice what would be the 3 top Grado headphones to purchase. I need to know.
Full Grado Labs History! - Page 5
Head-Fi's Best Sellers
Suggestion #1: Money not an issue? Grado HP 1000 :D
Suggestion #2: Turbulent X drivers housed in MartinCustomAudio wooden inner chambers, inside your SR80i cups. I would also suggest that you pick either Limba/Korina, Tiger Maple or Honduran Mahogany as type of wood, because these have been extensively compared by thelostMIDrange which he deemed better sounding than a bunch of other woods (http://www.head-fi.org/t/592921/cup-tuning-basics decide for youself whether you trust this guy or not, I personally do). Also his limba wooden cups Magnum v4 built is probably the best measuring Grado on innerfidelity.com. Finally make sure the inner wooden chambers are a perfect fit to the drivers (without the need to add any filling between the driver and the cups' hole); Martin has experience working with these drivers, he should be able to pull that out.
Suggestion #3: Alessandro MS2i, Alessandros are a tad more neutral than Grados but still excellent for rock. My favorite current-production “Grado” headphone.
There you go!
Stereophile, May 1991:
– GRADO HP 1 PROFESSIONAL RECORDING MONITOR HEADPHONES (Gary A. Galo) [the review begins at the very bottom of the first page]
Discussed : the HP 1 and HPA-1, their design, their sound, with details provided of a discussion the reviewer had with Joe. The difficulty of attaining adequate amplification for headphones in a time the only headamps that existed were the DIY ones. Extensive comparison with Stax Lambda Pro and quite a bit of talk about the Stax ED-1 diffuse field equalizer (a Stax module that compensate frequency response of the headphone for the natural amplification of the concha/pinna/ear canal to flatten perceived frequency response). An impedance and phase curve of the HP 1000 is provided
Oh and I received my Stereophile, June 1994, Grado SR60 review. It's by Corey Greenberg and it's not what I expected, hum, no Joseph Grado interview in it :/.
I'm not going to upload the scanned paper as I realized it's already fully on Stereophile's website there: http://www.stereophile.com/headphones/532
Edited by devouringone3 - 9/21/13 at 1:01pm