Yes, the UHD38X has S/PDIF (optical audio output).

Here is all the information:

DLP display technology
UHD resolution (3840×2160)
Brightness 4,000 lumens
Contrast ratio 1,000,000:1
Aspect ratio - native 16:9
Aspect Ratio - 4:3 compatible
Keystone correction +/-40°.
Horizontal scan speed 31~135Khz
Vertical scan speed 24~120Hz
Uniformity 80
Image size 0.84m~7.62m (33″~300″) diagonally.
Light source
Lamp type
Lamp power 240 watts
Lamp life in hours 4000 (Bright), 15000 (Dynamic), 10000 (Eco)
Optics
Projection ratio 1.5:1 ~ 1.66:1
Projection distance 1.21m - 9.9m
Zoom 1.1x
Zoom type Manual
Focal length 15.84mm~17.42mm/0.624″~0.686″
Native offset 105%.
Discussion
Inputs 2 x HDMI 2.0
Outputs 1 x 3.5mm audio, 1 x S/PDIF, 1 x USB-A power 1.5A
Control 1 x RS232, 1 x 12V trigger
General Specifications
Noise level (typical) 26dB
Noise level (max.) 28dB
PC Compatibility UHD, WQHD, WUXGA, FHD, UXGA, SXGA, WXGA, HD, XGA, SVGA, VGA, Mac
2D Compatibility 480i/p, 576i/p, 720p(50/60Hz), 1080i(50/60Hz), 1080p(50/60Hz), 2160p(50/60Hz)
3D picture pack compatibility: 1080p24, 720p50/60
Full 3D
Security Security bar, Kensington lock, password protected interface
OSD/Languages Display 10 languages: English, French, German, Italian, Japanese, Portuguese, Russian, Chinese (simplified), Spanish.
Operating conditions 5°C~40°C/41°F~104°F, maximum altitude 3000M/9843ft, maximum humidity 85%.
Remote control Illuminated remote control
Speaker 1x 10W
Input delay 4.20ms
Power supply
Power supply 100~240V, 50~60Hz
Power consumption (standby) 0.5W
Power consumption (min) 220W
Power consumption (max) 305W