Samsung SM550EX 55in Monitor LFD (1920x1080) 6000:1 - Black Bezel + Built in Speakers

Audio5W x 2 Sound Output (RMS);Built-in Speakers.Sound power and signal emitted from a display's speaker, as measured via Root Mean Square (RMS). Mechanism in display that outputs audio. Down firing enhances bass by directing low-end toward ground.DesignBlack Cabinet Color.Color of the stand and casing that frames a display's screen.Dimensions50.13" x 30.05" x 1.57" Without Stand.Width, height and depth of the display without the stand, measured in inches (in.).55.28" x 35.35" x 8.66" Shipping Size. Width, height and depth of the display including the shipping container, measured in inches (in.).Display16:9 Aspect Ratio.Ratio of the width of an display to its height. 16:9 is the universal standard for high-definition display.450 cd/sq m Brightness.Amount of light a digital display can produce, as measured by candelas per square meter (cd/m2).1.07 Billion (10-bit dithering) Colors.Number of colors that a particular monitor is capable of displaying.6000:1 Contrast Ratio. Difference in light intensity between brightest color (white) & darkest (black). Higher ratio means more contrast. 55" Class Diagonal Screen Size. The diagonal measurement of a TV screen or monitor, from corner to corner.10,000:1 Dynamic Contrast Ratio.Difference in luminosity between brightest color (white) & darkest (black) over time. Higher ratio means more contrast.30-81 kHz H-Scanning Frequency;148.5 MHz Maximum Pixel Frequency;1920 x 1080 Resolution.Fixed number of horizontal scan lines on a TV. P (Progressive) means scan lines are drawn in sequence.0.21 x 0.63 mm Pixel Pitch;6ms Response Time.Speed at which pixels can change color. Lower response times mean better motion image reproduction. Internal Power. 178