Hopefully Mac chimes in, but when I looked at your computer specs I notice what is posted below. Yet their tech says it won't make much difference??

From Dell.com-
Inspiron 560 specs -
Sound Card

Integrated 7.1 Channel Audio up to Creative SoundBlaster® X-Fi Xtreme Audio (D)†

While an integrated sound solution is fine for playing MP3s and CDs, simple presentations, and other basic computing, a sound card can dramatically broaden your audio horizons. In addition to crisp multi-channel sound with maximum realism, sound cards offer high-resolution, low-latency and feature-rich recording for audio enthusiasts and professionals.
quoted from http://www.dell.com/us/p/inspiron-560/pd

The fact you only have PCIe slots available will limit your selection for a card inside the computer. Not many making PCIe as far as I know.

Last edited by rharv; 09/26/11 09:40 AM.
I do not work here, but the benefits are still awesome
Make your sound your own!