Dell W1900 Owner's Manual page 41

Inputs
DVI (for use as computer monitor)
Audio (PC)
Outputs
Video
Composite (CVBS)
Audio (L+R)
Headphone
Audio
Effects
Speakers (integrated)
Additional Features
Video
Composite (CVBS)
Audio (L+R)
Headphone
one (bottom)
one (bottom)
one (side)
one pair
one (side)
SRS TruSurround XT
Midnight Mode
7 watts/channel
7+7 watts total
one (bottom)
one pair
one (side)
Specifications for Your TV Display
41