Out of curiosity, what would be better for HD650's: a Sparrow or EF2A? They are both about ~$175. Or is there a better alternative? I would hopefully like to have the DAC in the amp be good enough to upgrade to a better amp in the future, but this isn't necessary.

I am also looking at buying a DAC/Amp around the $150-$180 price range. I need one has optical input so that I can connect it to my WDTV Live. I believe the EF2 has only USB input but I have no clue about the others. Can anyone give me information about the inputs of some of the other DACs...

Hi, I'm looking to buy some new IEMs to use with my PMP. While at home I prefer high quality, on the road I just need good isolation. The only cheap isolation IEM that I know of is the JVC Marshmallow. I am thinking about purchasing them, but I was also wondering if there were any better...

Do you guys know anything about the Topping products? Not much came up in google Topping TP-30 [TP 30] - US$86.99 : Gyratech International Online Store Class T Amplifier : Gyratech International Online Store

$175 is still more than I want to spend. I guess I could try to find a use zero that cost a bit less.

I have every intention of eventually upgrading to a dedicated amp so I guess the udac is out. I don't care about size at all, I just want something that is of good value that could power my HD555's now and other headphones with an amp in the future. How good is the Musiland Monitor 02 US...

Thanks for the input. For some reason I thought that a large desktop dac would be more 'powerful' or a better deal then a smaller dac like the udac. If I'm wrong, I will reconsider the udac. Also, when I do upgrade to better headphones I plan on purchasing a dedicated headphone amp so the...

I am looking for a dac with a built in headphone amp for around $100-$150. Right now I am using my HD555's directly plugged into a headphone jack (terrible I know). Anyways, in the future (when I get some more money), I plan on buying a nicer set of headphones and an amp, but I would like to buy...