We used the following calibration settings to test the 65-inch Samsung DU6900 (UN65DU6900FXZC), but they're also valid for the 43-inch model (UN43DU6900FXZC), the 50-inch model (UN50DU6900FXZA/C), the 55-inch model (UN55DU6900FXZA/C), the 60-inch model (UN60DU6900FXZA/C), the 70-inch model (UN70DU6900FXZC), the 75-inch model (UN75DU6900FXZA/C), and the 85-inch model (UN85DU6900FXZC). These settings apply to most types of content, except for gaming or use as a PC monitor, which requires a few additional changes listed below.
These settings are meant to provide a starting point; they're not meant to be copied 1:1. They provide the most accurate image overall, but you should adjust them to match your personal preferences and viewing conditions.
For SDR content, there are a few different preset picture modes available. The 'Movie' Picture Mode delivers the most accurate image out of the box and allows for the most customization. A Brightness setting of '32' corresponds to about 200 nits on our unit, which is our target for a moderately lit room, but you should adjust this setting to your specific viewing condition. All other settings were either disabled or left off.
HDR is automatically enabled for native apps. When you start playing HDR content, a small HDR icon appears next to the picture mode on the quick settings menu, and some of the settings change automatically, including Brightness, which increases to 'Max.' We left all the picture settings at their defaults in HDR, but you should adjust them to whatever looks best. In HDR, the 'Movie' HDR Picture Mode delivers the most accurate image overall, as it tracks the PQ EOTF the best. This ensures that most content is displayed at the brightness level the content creator intended.
For HDR to work from external devices, Input Signal Plus usually has to be enabled from the External Device Manager menu for the input you are using.
The TV supports HDR10+ from native apps and external devices. As with normal HDR content, when you start playing HDR10+ content, some settings change automatically. Since we don't specifically test HDR10+, we don't have exact settings for them, but they should be the same as our HDR10 settings.
The following are the results of calibrating the white balance of our unit to 6500K in HDR. They are provided for reference and shouldn't be copied as the calibration values vary per individual unit, even for the same model and size as the TV we reviewed, due to manufacturing tolerances. If you want to try them, you'll need to enter all values shown, as all of them are active at the same time. If you end up with worse picture quality, simply reset them to the default values.
From the base SDR and HDR settings, very few changes are required for a great gaming experience. When you start gaming, it's best to enable Game Mode from the Game Mode Settings tab in the External Device Manager to get the lowest input lag and then use the same settings for SDR or HDR.
The Samsung DU6900 supports both ARC and eARC, allowing it to pass high-quality audio from a connected source through to a connected soundbar or home theater receiver. To use it, you must set the HDMI eARC Mode to 'Auto' and Digital Output Audio Format to 'Pass-Through.'
If you notice any delay between the action on-screen and the audio, you may need to adjust the Digital Output Audio Delay setting. The required setting varies depending on the audio device, so you'll have to play with the setting to get the audio to match. For eARC devices, this should adjust automatically, but you might still need to modify it.
Although we usually leave these settings disabled during most of our testing, you should adjust the settings in the Picture Clarity Settings menu to your liking, as different people prefer different levels of motion interpolation. If you want to enable motion interpolation, set Picture Clarity to 'Custom,' and adjust the Judder Reduction slider for low frame rate content, like Blu-Ray movies. The LED Clear Motion setting controls the black frame insertion feature on the Samsung DU6900. Most of these settings will need to be adjusted depending on the specific content you are watching.
For our upscaling test, we set Sharpness to '5,' with Picture Quality set to 'Off.' Sharpness processing was calibrated with no over-sharpening for low-resolution content.
The Samsung DU6900 automatically removes judder from native 24p signals, like DVD or Blu-ray players, as well as from native apps. Unfortunately, it doesn't remove judder from 60i or 60p sources, so movies played from satellite/cable boxes aren't judder-free.
For information on any other settings or features that fall outside of the scope of our testing, please refer to the user manual.
The following are the results of the white balance and colorspace calibration on our unit. They are provided for reference and should not be copied as the calibration values vary per individual unit, even for the same model and size as the TV we reviewed, due to manufacturing tolerances. If you want to try them, you will need to enter all values shown, as all of them are active at the same time. If you end up with worse picture quality, simply reset them to the default values.