The UltraNero 4S DUO is not simply two identical projectors working together to increase light output.
Its two laser imaging engines perform different but complementary roles. Each follows its own HDR curve, tone mapping and dedicated optical path: one tuned around the brilliance and energy of highlights, the other around depth, tonal separation and shadow detail.
The two imaging paths are mechanically aligned, electronically integrated and calibrated to behave as one projection system, producing one coherent image on screen.
By giving each engine a dedicated role, the DUO expands the available envelope of brightness, color volume and dynamic range, while giving the system more room to preserve the relationships between highlights, color and shadow detail.
Two specialized engines. Two different roles. One image.