I am somewhat interested in your mod. Could you explain the process of getting at the resonant spaces surrounding the drive unit, and the exact material you used to fill these spaces? It looks like glass wool insulation, which might have the disadsvantage of shedding a lot of particles that...

It might be of interest here that I have enjoyably used a (perhaps similarly) modded HD800 for several years. This mod has been offered for quite a while by a company called Stefan Audio Arts. They call it their HD800 ultra-mod, (...

I was mainly comparing with the Monoprice AMT.

An apparent problem with bit perfect mode. Of course bit perfect is automatically disabled when I use my Toneboosters PEQ. If I turn PEQ off and select "enable bit perfect if possible" it should automatically enable bit perfect, and consequently sound better, right? Well, in that condition it...

I agree about the natural quality of the treble performance of the HEDDphone 2. But as an audiophile I find it subjectively lacks some of the treble definition or resolution apparently offered by some other headphones such as the HD800S and HE1000se. On further analysis it turns out that this...

Not surprised. I think the Monoprice AMT is by far the best bargain in high end audio. In my system with EQ they have bested a number of high-reputationed high end headphones including the Sennheiser HD800S, Dan Clark Expanse, HEDDphone 2, HE1000se, and Gold Planar GL-2000.

I would agree except for one major caviat: headphones, music sources, DACs, headphone amplifiers and cables however expensive, aren't perfect. Typical colorations in these equipment are slight digital edginess or rounded-off lack of precise transient reproduction, or slight boosts in the upper...

Some user comparisons I have gleaned from various forums and blogs. My general impression is that the CA1000T is superb and only a little better resolution wise than the SP3000, with the CA1000T being considerably better overall due to advanced features like much more power to drive low...

I am interested in the A&K ACRO CA1000T, but I have one issue that looks to be a problem. I presently am using a music source consisting of a Galaxy S4 tablet containing over 200 GB of WAV and FLAC music files contained in the USB Audio Player Pro (UAPP) app. This android app interfaces via USB...

I have had good results with the Sparkos Labs Aries. Just a word of negativity in this compilation: I found that a very excellent DAP (A & K Kann Cube) had quite insufficient power. This may be an indicator of a general problem with Digital Audio Players.

Will there be any performance improvement (especially with the Toneboosters EQ) if the UAPP files and music files are transferred from an old Samsung Galaxy Tab S4 to run on a new Galaxy Tab S9? The new S9 processor is 3 1/2 times faster than the S4 and uses a new version of the Android...

I may have missed it in this thread , but I am interested in how the HEDDphone 2 compares sonically to the HEDDphone 1.

I just got a pair of the HEDDphone 2s, and can report some initial positive reactions. I immediately liked them a lot. My previous favorite headphone has been the Monoprice AMT (equalized), but this new HEDDphone beats it by quite a bit (as it should considering the price difference). The...