Sony STR-AZ7000ES Premium ES 13.2 Channel 8K A/V Receiver

Sony STR-AZ7000ES Premium ES 13.2 Channel 8K A/V ReceiverThe chassis of the ES model has been fundamentally revised: the overall thickness has been increased for improved rigidity, and the structures of the transformer base and other weight bearing parts have also been redesigned to improve the instantaneous power and crispness of the sound, when compared to a conventional chassis. Designed with an offset screw position to both eliminate the resonance point and avoid frequency specific, vibration inducing

The chassis of the ES model has been fundamentally revised: the overall thickness has been increased for improved rigidity, and the structures of the transformer base and other weight-bearing parts have also been redesigned to improve the instantaneous power and crispness of the sound, when compared to a conventional chassis.  Designed with an offset screw position to both eliminate the resonance point and avoid frequency-specific, vibration-inducing resonance transmission to and from the transformer, the foot also contains additional ribs for increased rigidity and improved resonance control.  A more uniform shape applied to the heat sink enables the amplifier circuit to withstand unwanted vibration. The heat sink bracket also shields the digital circuit from radiation, for sound quality that has more stability and clarity.  Metal ES-grade frames both secure the circuit board and protect it from vibration caused by speaker sound pressure. The varying fin length of the integrated heat sink reduces audible resonance uniformity while also shielding delicate circuitry from noise.