Sorry for being annoying but i got few more questions before buying the amp/dac if you dont mind.
1. first of all im thinking if i should invest in the Grace Design m9XX (500$ on massdrop) or is it a waste? i mean does it actually sound alot different then listening with the Schiit Modi 2 Uber and Magni 2 Uber or other amp/dac? and if so how much different?
Me x3: Very subtle, hardly audible at best.
2. can you compare the matrix hpa-2 to the schiit combo? i mean they all sound similar? if not what are the differences?
Me x3: Similar overall, you could find the Matrix a bit warmer with less splashy treble
3. the matrix hpa-2 did you mean this? (it say only amp in the title) http://www.ebay.com/itm/Matrix-M-stage-HPA-2-Headphone-Amplifier-AMP-black-/141685318697?hash=item20fd1a6429:g:Ft4AAMXQWzNSn~Dg
Me x3: No, that's just an amplifier, not a DAC/Amp. You should look for those with USB on the back plate. This is the latest version
http://www.matrix-digi.com/en/products/100/index.html
4. you said that the oppo ha2se should sound fine but how is it compare to the other you suggested? also from reviews i read the ha2se can power 300 ohm headphones so why should i buy other amp/dac over it? (talkng about sound quality)
Me x3: Most 300 Ohm headphones are not that hard to drive, some 600 Ohm Beyers are harder to drive, some AKGs are harder to drive despite being 67 Ohm, some Hifimans are much harder to drive (HE-4, HE-6) despite being 50 Ohm headphones. Differences in terms of sound quality are subtle some people don't even hear them. Slightly bigger stage, slightly blacker background, or slightly clearer treble, you know some very fine details here or there could make you prefer one or the other. Strictly from a price performance ratio perspective I see no reason to go over the FiiO Q1, I've enjoyed my HD650 with it many times and it gets the job done. In other words, you can get very good sound quality out of a 70usd DAC/Amp and call it a day. If you want to chase that extra bit of this or that it will cost you a good amount of money in exchange (or even tons of it), if you have the money and like to own certain product then why not? But you won't get proportional increase in terms of SQ once you've passed a good performer like the affordable Q1.
thank you soooooo much