I am thinking of buying either Cayin N5 or Cowon Plenue D. One major difference between them is battery life. N5 last about 9 hours, Plenue D lasts 10 times longer, despite smaller size, which probably means smaller battery as well.   How can the batter lives be so different? Does that mean...

There is a cheap power conditioner by Belkin http://www.buy.com/prod/belkin-purea...202125719.html is it any good?

I bought a Gilmore Lite last month, but the improvement of it over my soundcard's (Echo Gina 3G) headphone out is not much. I don't mean no improvement at all, it just does not justify the money I spent. I saw a Stello HP100 in the FS forum, as I understand this amp is at the same level of...

Does anybody know what are the differences between Gilmore Lite v2 and previous versions? including the DPS. Thanks alot.

Many people are saying AKG K701 has wide soundstage? But what does soundstage mean? Is it just stereo separation?

Since I received the K701 four days ago, my computer is always on. I plan to use the headphone amp of my soundcard to burn it in 24/7. After 4 days of listening, the first thing I noticed is that the K701 requires less driving power. I have to turn the volume lower everyday than previous day...

is it true that an ASIO device can only be accessed by one application at a time? so when I play music through an ASIO device, sound from other applications won't be heard? Thanks.

I plan to buy a soundcard soon, Echo Gina 3G in my mind. I will save more to buy an amp, but not in the near future. So I am wondering if the headphone output of the card is good enough to drive a can like HD650? I know a soundcard can't replace an amp, but it's satisfactory for me if it's able...

I noticed that some high-end consumer soundcards, like Creative X-Fi Pro, have comparable prices as some pro soundcards, like E-Mu 1212M. In terms of music playback, does anybody know if pro cards have substantial advantages over high-end consumer cards?

I got my UE super.fi 3 studio yesterdays, it's my first IEM, so I am not sure if what I experienced is normal for all IEM. The IEM comes with a few pairs of eartips of different size, I tried all of them. The small and med tips fit well. But when I put on the earphone and there is no music, I...