Will I need to do any mods on it or are they fine the way they are? Do I also need an amp, I am currently using creative soundblaster audigy 4. TIA

what about the Amazon.com: Equation RP-21 Stereo Monitor Headphones: Musical Instruments

Hi I currently have a Sennheiser HD 280 pro. What is a good replacement headphone closed can, that has a bit more bass than the HD 280 and feels comfy for long hours of music listening? I also play games if that matters. Sound isolation would be good too, but not a must. Price range is 0-$150...