Quote: Well, I appriciate all your help. If you can find me an answer, I would be forever greatful to you. Thank you for taking the time to do the diagram, it really helped!

Yup, they aren't the AH-D2000's. I wouldn't worry about the order however, I'm sure you'll get the correct pair. It's just a mistake on their website, I'm sure they'll catch up on it soon!

I'd go with the Sennheiser IE 6 In-Ear Monitors. They are a fantastic pair of headphones, and work really nicely with an iPod. I have tried them with my PC as well, and they certainly didn't dissapoint, even when using them an Onboard Sound Card!

  Quote:   Haha, I agree. LOL! 

Denon AH-D2000 headphones are what your looking for. They are good all-rounders. The bass stands out the most, I'm sure you'll like them. Personally, I'd stick with your HD 580's and get a really good Headphone Amplifier, but that's entirely your choice.

Go for the HD 448. It's supposed to be better than the HD 438 because it's the next model up. If I was you, I'd go for the HD 448's. Good luck!

  Quote:   I understand exactly what you mean, thank you. However, I'm a little confused about the Centre/Subwoofer channels. How will I know which is the Red and which is the White? I understand how it works for the Left and Right channels but what about these?

  Quote: I decided to get the HD 650's because I've heard every headphone in the HD 5** range, and I assumed as the HD 650's were once the flagship model, it would be wise to go for them. I expected a significant increase in sound quality, and they didn't dissapoint.   I'm happy...

Quote:   Like I said before, I only want better bass. Usually, I try to stay away from the EQ because I feel it spoil's the sound signature of the headphones. If I had to EQ, I would only very slightly EQ the bass, nothing else.

Quote:   Thank you. I'll definetely try that out. My card comes on Tuesday, can't wait!

  Quote: The only thing that came with the extension board was the internal cable that is used to connect the actual sound card with the extension board. That adapter you were saying, is it an RCA to 3.5mm Y cable? It says on the box that one is provided, but only one!

  Quote: I'll probably end up buying a Headphone Amplifier when the time is right. Maybe in a couple of months if I feel the need to, otherwise I doubt it. I'm not a very critical listener, but I do take my sound equipment very seriously. It was a big step up for me, even to buy a pair...

  Quote: You still don't understand, LOL! I love the sound on these, even with a rubbish source, so with a new sound card they'll probably sound incredible for me. I just wan't a tad more bass. Not shred loads, just slightly more to give some impact. I'm hoping that new card will...

Wow, that's fantastic. I have high hopes now, LOL!

I don't understand how much more the sound quality can be improved? I feel as it can't get any better even with the source I'm using. Will that card really improve sound quality as much as you guys as implying? I don't have any experience with amplifiers etc.