Sitting in the middle of Samsung’s 2009 LCD family, the 6-Series units are a mid range and mid prices option more powerful and functional than the 5 series and less so than the 7 series. To help you understand the defining differences between the low end LN52B550 (52 inch), mid range LN55B650 (55 inch), and top of the line LN52B750 (52 inch) check out the below major differences noted when comparing the B650 vs B550 vs B750 Samsung models:

Compare LN52B550 vs LN55B650:

Note: This year Samsung has oddly replaced the 52inch version of the 6 series in favour of a 55inch model. Below are the major differences between the 5-series B550 LCD compared to the 6-series B650 LCD models:

  • The 52B550 has a dynamic contrast ratio of 70,000:1 versus 100,000:1 on the 55B650
  • The 120Hz LN-B650 has double the refresh rate of the LN-B550, resulting in smoother moving images and less judder
  • The B550 lacks the Yahoo widgets and Internet TV online content service of the B650
  • The 5 series misses out on multimedia capabilities via USB like support for DIVX and x264 video formats
  • LN52B550 has a slightly less glossy screen, resulting in less deep colors but less reflection problems than the LN55B650
  • LNXXB650 features wide color enhancer 3 improvements over the B650’s WCE 2

Compare LN55B650 vs LN52B750:

Below are the major and defining differences of the mid range, 55-inch B650 series and the high end, 52-inch B750 series LCD televisions from Samsungs 2009 HDTV line-up:

  • Samsung’s LN52B750 has a 150,000:1 contrast ratio versus 100,000:1 found on the LN55B650 for higher picture quality on the 750
  • Auto Motion Plus 240Hz refresh rate on the B750 versus B650’s 120 Hz refresh for even smoother and more fluid imaging on the 7 series with less judder and annoyance
  • 2ms response time on the LNb750 vs. 4ms response on the lnb650 helps minimize blurring of fast action
  • New design and touch of color. The B750 series has a charcoal gray blended into the piano black frame as opposed to the red TOC found on the B650 series