So last night for the first time I listened to my 325is's directly out of my MBP to Cd's that I had imported to my iTunes library. If anyone recalls, I usually listen through an Adcom GFP-710 pre-amp and a Meridian DAC and a Sony Cd player, and I found my 80i's to have tighter bass and much more micro detail and a more realistic sound to them coming from my Adcom and my Meridian and Sony than my 325's do. Strangely enough while listening to the 325's out of the MBP I heard much tighter bass and more micro details and they were much clearer and the instruments also had more air around them, just like my 80's sound like out of the Adcom and Meridian, but the 325's are obviously smoother. Can anyone comment on why this may be? Also I've noticed that most headphone amps have about 1 watt into 32 ohm's, and I don't know what the output from the headphone jack is from the Adcom, but I do know it is a dedicated amplifier section for the headphone on the Adcom. I have the manual and it doesn't give that info, and I can't find it anywhere on the web. Can this just be a bad combo for the 325is even though both headphones are 32ohm, but yet the 80's sound better out of this combo, where as the 325's sound better straight out of the MBP.
So being that I liked what I was hearing from the 325's and the MBP, I am going to pull the trigger on purchasing the Schiit Magni/Modi or the Asguard2/Modi combo for the 325's tonight, but before I do this I would appreciate if anyone has some comments on my questions to as why this is. Thank you.
My Beyer DT 770 250Ohm sounded better out of my MBA's headphone out and my crappy CD player's headphone out than my Fiio E10! However, in that case, I know that's because the Beyers were pretty high impedance headphones, and the high impedance on the MBA jack and the CD player jack matched the headphone impedance better, meaning no power clip. Your SR325is, however, are low impedance, so they should sound better out of a dedicated amp with a low output impedance. My only guess would be that your Macbook's headphone jack has a lower output impedance than your amp. Yet, you said the SR80i sounded better out of the amp... not sure man :/ not sure.
As for the Schiit gear, I would go for it man. The Magni/Modi stack made my Grados sing. However, the Magni has a fixed 5x gain, and with the Grados being kinda sensitive, I had virtually no volume play (that's WITH attenuators plugged in the back). If you have the scratch, i'd go with the Asgard 2/Modi rather than both baby Schiits. The Asgard 2 has a switch on the back that lets you toggle between a low gain and a high gain. The low gain would be perfect for your SR325is.