Can I use a di box as a dac to connect my tube amp, which is not made for headphones and is home made. If i get a cable that has rca output (from amp) to a xlr input (di box). https://www.thomann.de/gb/radial_engineering_usb_pro.htm (got it for free btw). Basically i want to connect an amp to...

I know all of the earphones/headphones have 3.5mm plug. What I meant was the compatibility. So, which one of these work the best for my music?

"I am mainly looking the one that would fit my Iphone 3gs" - There are types of IEM's that fit certain mobiles right? correct me if i am wrong. I am listening to Drum And Bass (Not the ****ty one) with beats like this http://www.youtube.com/watch?v=5iT5WotCnXA  All around liquid dnb.  Also...

Hello, I am looking for good IEM's and there's some that I've found: http://www.ebay.co.uk/itm/Genuine-Official-Sony-MH1C-MH-1C-Smart-Headset-in-Ear-Earphones-for-Sony-XPERIA-/301091996598?pt=UK_Mobile_Home_Phones_Bluetooth_Acc_ET&hash=item461a7b43b6...

http://www.newegg.com/Product/Product.aspx?Item=N82E16817139054 as a PSU, it's very good that you have good 650w PSU, you want to make sure that all of your components are getting clean, good power, just to make sure that theres not going to be any weird spikes or anything like that, it can...

Xonar DS ?  http://www.head-fi.org/products/asus-xonar-ds-7-1-channel-pci-low-profile-192k-24bit-hifi-audio-card-sound-card    

Ok... Anyway, a card that has 7.1 surround and fits best for my 558 is? Please an exact number, I'm a complete noob when it comes to sound cards. Apologies for my English and you're time.

pardon for english. What I meant was that does the amp give a huge benefit?

So basically there's no point for me getting the DX or different type of card just because it doesnt have the headphone amp, really, what boost does it actually give to me? ty

So there is no sound card with 7.1 surround that has a headphone amp in it? And what difference will it actually make if i am with or w/o it? I'll be able to turn up more volume, is that what amp stands for, correct me if i am wrong.

  Then which one does have an amp ? 

I think I'll get Xonar DX, has 192kHz sample rate, and yeah, ill be modding my 558. thanks.

So I've recently bought Sennheiser HD 558 headphones and I'm looking for a sound card to maximize it's potential and get its full power. My budget is around 50~ USD I mainly listen to DnB/Ambient music and I do need a good 7.1 surround for upcoming BF4. Price can be above a little bit...

I have many choices, cant seem to find what's actually best for me. SteelSeries Siberia v2 Asus Headset Orion Pro Corsair Vengeance 1500 ROCCAT Kave  I am actually an FPS gamer. BF3 mostly. I listen to much of Ambient/DnB/Progressive House music, not a fan of trance or dubstep...