If you are not in the tube market than you have to check EC/SS amp first. Seems that this particular one is the best match with Grado's, however I never heard one myself.
You can take a look at Firestone Encore, which was pretty good match with my SR225. I have tried with RS1 ( old version ) as well, and the results were very good, but still a bit "dry" sounding, after I tried tubes.
I believe that tubes still the best what you can get for Grado's, but that's me.
Originally Posted by noobie72
Tubes will probably be a last resort for me as I don't find them aesthetically pleasing. I know, it's supposed to be all about the sound, but...
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Main use@NAD C542 CDP
Amplifier: Yoshino EAR HP4
Phones:Grado GS1000
Cables:DH Labs Silver Sonic BL-1 Series II/Monster M1000i RCA/MicrophonicAudio RCA/Wyvern Audio-Cyprium One LOD
Portable@ iAudio X5L 30G >Go-Vibe Petite DAC>ATH ES7/ATH ESW9/Koss KSC75
My feedbacks
http://www.head-fi.org/forums/f12/blackmore-169679/