Originally Posted by gdourado
The HP-P1 and E12 are my "portable rig". I mainly use it at the office during work hours. The E17 is currently my home desktop setup. I have it connected to my iMac that stores my music library. That is what I am wanting to upgrade.
Thank you for sharing.
I have a question about the Asus One. Is the upsamplig feature worth it or just a gimmick? I am asking because both the E17 and HP-A4 don't have it.
Also, any comparison between the HP-A4 and Asus One in regard to what you mentioned? Mainly, clarity, detail and Soundstage?
I asked about your HP-P1 and E12 because I don't understand why you use the E12 when the HP-P1 already has a headphone amp built in.
Then the E17 as a desktop setup doesn't make sense to me either. The E17 is smaller than the HP-P1 so it makes sense to me to use the E17 as a portable amp/DAC. In fact, you could sell your E12 and HP-P1 and use the E17 for everything.
I have no experience with the HP-A4 but looking at the specs it seems like a nice unit. The Asus is a lot more powerful, but none of your headphones are hard to drive so I think any amp will do.
When I stated above that you shouldn't worry about 24/192 or upsampling, thats what I think. There is no audible difference between 24/96 and 24/192 and all upsampling does is (theoretically) add more processing to the source.
So again, I don't think you need either the Essence One or the HP-A4 because they will not do anything that your E17 doesn't already do. In my opinion, the purpose of a "desktop amp" is to allow connection of multiple sources such as a computer, CD player, etc. and listen with "audiophile" high impedance low sensitivity headphones.
If I were in your shoes and Looking to build a high quality desktop system, I would sell the HP-P1, E12, and MadDogs and get the Essence One or Matrix M-Stage HPA-2 and Sennheiser HD 600. That's an end-game system IMO.Edited by palmfish - 3/28/14 at 8:02am