Sony STR-GX80ES Technical Background - Page 31

quality. At the same time, they're environmentally friendly designs, entirely leadfree and PVC-free. Sometimes size does matter, as in the oversized filter capacitors of Sony's STR-DA3100ES. Spider Ground Plate Amplifier designers often assume that the various circuits inside the chassis all "see" a common ground. Unfortunately, slight differences in grounding can have a subtle impact on the sound. That's why Sony created a Spider Grounding Plate for the STR-DA3100ES and DA2100ES. The plate establishes a "standard reference ground" for all circuits and reduces common impedance. Sony's Spider Grounding Plate uses ten points, plus substantially thicker connections to achieve a standard reference ground. ES Receivers v1.0 Page 31