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The VSX816K's Pioneer Hybrid Amplifier (PHA) design is a unique structure to reduce the distortion caused by the dynamic change of heat in the system. Temperature is a key factor since heat directly affects the amount of bias required by an output transistor to reproduce sound. A thermal compensation transistor provides transistor temperature feedback to the bias circuit, ensuring that the correct amount of bias is applied to the transistors, regardless of temperature. Moreover, to enhance dissipation of heat, the output transistor's Thermal Compensation Circuits are all mounted to the same portion of the heat sink. The advantages are thorough reduction of the distortion by controlling bias current quickly in accordance with the change of the power transistor temperature and an ultra short signal path by integrating major parts of the power amplification stage.
The advanced simplicity of design and the superior quality of the chips, power supplies and materials that make up the VSX816K prove that Pioneer A/V receivers are indeed the industry standard. The Dual 48-bit Freescale DSP Digital Engine incorporates all digital signal processing into one powerful, compact circuit board, shortening the signal path and minimizing radiation. The benefits are low jitter, a super-accurate PLL sound-processing clocking module, and virtually no audio degradation. Plus, this processors's low impedance stabilizes power throughout the chip, preventing internal noise that can affect signal purity.
To achieve optimal audio performance, your speaker output needs to be fine-tuned to the listening room. Room size and shape, floor and wall textures, the quality and relative size of your speakers--all of these factors affect performance. Pioneer has a solution: the VSX816K offers the most precise acoustic calibration available without professional support. It's called the Multi-Channel Acoustic Calibration System, or MCACC, and it works in any room regardless of shape or size. Automatic MCACC set-up uses a microphone to monitor a room's acoustic environment, then determines the size and number of speakers, as well as channel level and listener-to-speaker distances. The VSX816K even has a 5-band equalizer for more precise adjustment. With MCACC, you can have the ultimate home entertainment system--one that's customized for your own home.
In addition to the more traditional surround sound formats, the VSX816K offers new Dolby Pro Logic IIx for 7.1-channel playback of traditional stereo and 5.1/6.1-channel content. It can apply Dolby Digital EX and DTS-ES decoding to 6.1-channel output, and its DTS NEO:6 capability can produce 6.1-channel surround from 2-channel sources. Pioneer's exclusive DSP technology lets you experience movies and music as never before. Virtual Surround Back mode deepens and broadens the sound stage by creating a phantom rear surround effect without using a surround back speaker. Enjoy all this high-quality entertainment in 110-watt per channel surround sound, across as many as seven speakers. And in your choice of nine advanced concert and cinema surround modes for a truly cinematic sonic immersion. With this receiver at the center of your system, there's virtually no limit to your entertainment possibilities.
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