Kramer VP−551X is a versatile, professional presentation scaler/switcher for 4K@60 (4:4:4) HDMI, VGA and composite video signals. The unit scales the video and provides options to use the embedded HDMI audio or to select the companion audio channel from one of ten analog audio input signals. After processing and scaling, the embedded AV signal is sent to the HDMI and the HDBaseT outputs simultaneously, and the audio is also sent to a balanced stereo audio output, S/PDIF digital output and a pair of loudspeakers. Scales HDMI, VGA and Composite video signals for output to two mirrored outputs: HDMI and HDBaseT. Constant output sync prevents signal disruption when switching between inputs and when no video is detected. Supports and scales to/from resolutions up to 4K@60Hz (4:4:4) on the HDMI inputs and output, and 4K@60Hz (4:2:0) on the HDBaseT output. Complies with HDCP 2.2. Supports HDR10, CEC, xvYCC color (on input), Dolby TrueHD/DTS–HD Master Audio (by–pass), as specified in HDMI 2.0. Provides selectable aspect ratios (full, best fit, over scan, under scan, letter box and pan scan). Includes built–in ProcAmp for color, hue, sharpness, noise, contrast and brightness control. Supports PixPerfect™, Kramer’s precision pixel mapping and high–quality scaling technology. High–quality 3:2 and 2:2 pull–down de–interlacing and full up–scaling and down–scaling of all video input signals. Includes DSP with audio equalization, mixing, delay and more.