[JoeDoe]

Whatever you do, make sure you get a AMP/DAC combo that complements the sound of your phones. For example, the Schiit M&M stack nicely lifts up the highs of the HE-400 (which are actually pretty dark relative to the HE-500), but they make the SR325i scream like a banshee on ice.

Agreed. A pretty popular amp for any grado that won't break the bank is the little dot 1+

 

[ViperOuroboros]

Any recommendations on that front?  Preferably in a small form factor.  How is the Dragonfly 1.2?  What kind of voltage is preferable for the 325is? 
 
In the future I may buy the HE-400is as well. 

 

[JoeDoe]

Any recommendations on that front?  Preferably in a small form factor.  How is the Dragonfly 1.2?  What kind of voltage is preferable for the 325is? 

In the future I may buy the HE-400is as well. 

Had the dragonfly v1, and since it has a slightly bright sound, it didn't pair as well IMO as the U2 Async DAC from Hifimediy. It's what I use with my laptop and I certainly am pleased

 

[elmoe]

 
Not sure if I'm being trolled here...

Hater 

 

[GREQ]

 

 
Not sure if I'm being trolled here...

Hater 

Gotta hand it to Grado though - they are amazingly pretty headphones.

 

[ViperOuroboros]

Any experience here with the C5 or HRT Microstreamer?