Technical Background
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...firmware upgrades. • Front optical digital audio input (all models). These ES Series receivers represent another milestone in the home theater room and still control your components. • RS-232C interface for control and upgrade (STR-DA2100ES and higher). Conclusion Beginning with third-party room automation systems, these receivers... in 1982, the engineers of Sony's ES Series have been extending the capabilities of digital audio. To accommodate installations where the stack of modern A/V receivers is hidden away, ES Series receivers offer one infrared repeater input and...
...firmware upgrades. • Front optical digital audio input (all models). These ES Series receivers represent another milestone in the home theater room and still control your components. • RS-232C interface for control and upgrade (STR-DA2100ES and higher). Conclusion Beginning with third-party room automation systems, these receivers... in 1982, the engineers of Sony's ES Series have been extending the capabilities of digital audio. To accommodate installations where the stack of modern A/V receivers is hidden away, ES Series receivers offer one infrared repeater input and...