Asus 
ASUS Xonar Essence ST 7.1 Channel Sound Card

Creative 
SB X-Fi Titanium PCIe: You'll hear realistic EAX 5 sound effects and 3D positional audio so accurate you can locate opponents by mere sound, even over normal headphones. Plus, get unbeatable performance in your games with hardware accelerat

Creative 
X-Fi Extreme Audio PCIe

Creative 
SB X-FI Titanium card delivers faster audio performance and intense, realistic sound in all your games. Headphone surround sound is better too - so good, you'll swear you're listening to multichannel speakers - and your games will s

ALTEC LANSING 
VS2620 Speaker System

Logitech 
G51 5.1 Surround: Bring your games to life with 360-degree surround sound. Your games are meant to be experienced in surround sound. Now hear your enemies sneaking up behind you, and listen for action in every direction.

Logitech 
Z906 5.1 Surround Sound Spkrs Logitech Z906 5.1 THX/Dolby certified Surround Sound Speaker system - 500W

Logitech 
Logitech Z323 Speaker System 2.1-channel - 30W (RMS)

Logitech 
Logitech Z506 5.1 Speaker System 20 kHz - 75 W RMS - 150 W PMPO