User manual HUBBELL LIGHTING SUPERBAY I BALLAST HOUSING

[. . . ] How do you coordinate and switch all those sources, preserving audio and video in their most pristine form?How do you pack all those channels of amplification in a single chassis and still deliver the quality and power that home theater requires?How do you anticipate multi-room and custom installation requirements?And the answers determine the quality and suitability of any modern A/V receiver. [. . . ] The four large black ICs in the middle are Sony's S-Master Pro 32-bit LSIs, the CXD9773Q. On the right, the same circuit board with heat sink in position. Again, this runs counter to previous design practices for traditional amplifiers. Typically, output transistors generate so much heat that they need to ES Receivers v1. 0 Page 13 be isolated from other circuits. On big amps, you'll usually find the output transistors bonded to heavy aluminum heat sinks somewhere at the back or sides of the chassis. Thanks to the cool running of Sony's S-Master Pro amplifier, the MOS FETs are located where the circuit topology is shortest and simplest--lined up side-by-side, right in the middle of the power amplifier circuit board. In fact, the transistors can be so close together that the STR-DA7100ES amplifier section is some 70% smaller than the DA9000ES amp section!And the board itself is located in the middle of the DA7100ES chassis. As a result, the music is less exposed to vibration, radiated hum and noise. And nothing intrudes between you and the sound. Transistor heat Transistor packing Transistor location Transistor heat radiation Heat sinks Space requirements Traditional amplifier Major design concern Widely separated Away from heat-sensitive parts From the bottom Massive radiating fins made of die cast aluminum (on the better amplifiers) Major, for high powered amplifiers Isolated, to protect other circuits from heat Circuitous, because of output transistor heat STR-DA7100ES Minor issue Close together Surface mount directly on the amplifier circuit board From the top A single sheet of metal 70% smaller than the STRDA9000ES--and far, far smaller than analog amps of comparable power Wherever it makes the most sense for the shortest possible signal paths Short, simple and straight Amplifier board location Overall chassis topology Molecular Bonding Even inside the MOS FET output transistors, Sony innovations are at work. Sony uses a new refinement of our molecular bonding technique to attach the transistor leads. In the STR-DA9000ES, the MOS FETs use "double wire molecular bonding" with two bonding wires, each rated for 15 amps of current. On first connection the two components exchange basic information--they "introduce themselves. " DVD player with HDMI output Hi. I'm a television. ES Receivers v1. 0 Page 17 Next, the components communicate their input/output capabilities. DVD player with HDMI output What is your input capability?Television with HDMI input I can accept 720p video and 2channel audio at 48 kHz and 16 bits. Finally, the components agree on the highest available quality options for digital audio and video--and then automatically transfer content at that quality! DVD player with HDMI output OK. Television with HDMI input Thank you We've considered just a DVD player and a television. But the dynamic changes when you insert the STR-DA7100ES into the reproduction chain. In this case, the source component DVD player can only talk to the next component in the chain, the receiver. Television with HDMI input DVD player with HDMI output Receiver with HDMI input & output Receiver, what is your input capability? The receiver must then communicate with the television and mediate the content exchange for the entire system. The receiver automatically passes through the television's video requirements back to the source component. In the case of this illustration, the television is asking for 720p. ES Receivers v1. 0 Page 18 DVD player with HDMI output Receiver with HDMI input & output Television with HDMI input Television, what is your input capability? Digital Video 720p Digital Audio 2 channels 48 kHz 16 bits Now the receiver has two sets of audio capability to consider. As you would expect, the television can only handle two channels at somewhat more modest quality. The question: which of these requirements will the receiver communicate back to the source component?Two settings on the STR-DA7100ES receiver let you choose. DVD player with HDMI output Receiver with HDMI input & output Television with HDMI input Digital Video 720p Digital Audio 6. 1 channels 48 kHz 24 bits Video capability of television Digital Video 720p Digital Audio 2 channels 48 kHz 16 bits Digital Audio 2 channels 48 kHz 16 bits Audio capability Audio capability of television of receiver The default mode is HDMI AUDIO [AMP], which chooses the audio based on the highest capability of the receiver itself. [. . . ] Corrects "lip sync" errors to bring your television and your home theater speakers back into alignment. Delays the audio by up to 200 milliseconds, in 10 millisecond increments. The feature adapts the reproduction to match a 7-speaker configuration. In reproducing 5. 1-channel sources, the four Surround speakers are driven in two groups (SL and SR). [. . . ]