I am potentially interested in purchasing a JH audio custom IEM. I figure they fit my sound signature requirements the best since I'm looking for an improved UE TF10 (maybe less recessed midrange) with better fit. However, I won't be using them with an amp most of the time (let's say about...

I was thinking about purchasing the O2 and ODAC. I am debating between a separate O2 and ODAC or getting the one enclosure combo. The reason I would go separate is I can then use the O2 portably (or at least just move it around in my house), and I can't do that with the combo without moving...

So I just had a question about the ear cups of the Sennheiser 598s. It seems like the left and right ones are a little different. Check this picture right here: It is hard to see in the picture, but this is a picture of the left ear cup. At the bottom region, you can see (in the boxed area)...

I was wondering if we should have a stickied post/link to put with the glossaries of terms in the Useful Links section. I'm a strong proponent of blind testing and using more objective measures for audio comparisons, but it seems like a lot of people do blind testing incorrectly and concluding...

I own the UE TripleFi 10s and I was wondering how the warranty works in case I encounter any problems with it. I have heard that UE doesn't have any more TF10s, so they offer to replace it with lower models. Is this true? 

I own Sennheiser 598's, and I really enjoy them. However, I've heard a lot of people complain about its supposed lack of bass impact. However, my 598s have fantastic bass. I have them running out of my Fiio E10, so does that have anything to do it? I feel like the bass impact is weaker without a...

I currently own a Fiio E10 DAC/amp and I the music software I use upsamples music with the iZotope 64-bit SRC. I was wondering how the upsampling to 24bit/96kHZ via the iZotope software upsampler compared with the Fiio E10's upsampling. I've heard it is better to use software upsampling instead...

I have heard people describe the Sennheiser 598 as relatively bright. I currently own the Sennheiser 280 HD Pros and just received the 598s. I felt like brighter headphones will allow the vocals to pop a little more and the treble to come out a little more as well, if that makes sense. However...

I own Sennheisers 280 HD Pros and have just ordered Sennheiser 598s (haven't received them yet though). I had previously purchased a Cmoy portable headphone amp (OPAMP 2227) and it worked pretty well. I have now purchased the Fiio E10 and I love its DAC capabilities. However, I was curious how...

To achieve the best sound quality, is it better to change the volume on my computer and keep my amplifier at max output or is it better to change the volume on my amplifier and keep the computer volume high? I assume that maximizing the volume of the headphone amplifier is better than maximizing...

I am just getting into the higher end audio, so I apologize for my cluelessness. I was able to get Sennheiser HD 280 Pro's for a pretty good price (around $40), but I heard they sound so much better through an amplifier. I ran my music through my home theater receiver and (I'm not sure if this...