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Although theseĭACs can process two-channel audio on a single chip, Onkyo employs separate chips for each stereo channel, to ensure the most accurate digital-to-analog conversion. The player incorporates two of TI Burr-Brown's flagship 24-bit PCM1792 DACs. High-quality TI Burr-Brown DACs work to optimize analog audio performance on the C-7000R. Separate TI Burr-Brown DACs for L/R Channels Thanks to these advanced design features, the disc mechanism offers smooth and silent operation. Furthermore, the disc tray is precision-engineered from high-rigidity, die-cast aluminum. This enhances the precision of digital signal processing and noticeably improves perceived audio quality.Īffixed to four supports made of rigid machined brass, the C-7000R's CD drive provides excellent resistance to internal vibrations. PLL ultra-low jitter technology reduces jitter by comparing the input and output phases of the digital signal and creating an accurate clock waveform. Jitter is an unwanted side-effect of the digital-to-analog conversion process caused by fluctuations in the time domain of a digital signal. PLL (Phase Locked Loop) Ultra-Low Jitter Technology Even in surrounding temperatures of -30☌ or +80☌ the frequency remains stable, with only ☐.5 ppm of additional frequency deviation. The C-7000R uses a state-of-the-art crystal oscillator that achieves a frequency deviation of ☑.5 ppm at room temperature-much lower than with a conventional oscillator. The individual instruments of an orchestra. The C-7000R boasts an extremely precise clocking mechanism that controls and coordinates the timing of all digital signal processes-rather like how a conductor directs and coordinates Thermally Regulated Super-Precision Clock
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In the same vein, the player also features separate transformers for digital and analog circuitry. To prevent unwanted interference, the C-7000R employs physically separate circuitry for digital and analog processing. Separate Digital/Analog Circuitry and Transformers By improving linearity and reducing distortion in the super-high-frequency range, Onkyo's new DIDRC technology effectively reduces perceptible noise and delivers clearer-than-ever audio. Such distortion in the super-high-frequency range can generate “beat interference”, which in turn affects the character or atmosphere of the original sound. Despite being beyond the normal range of human hearing, frequencies above 100 kHz are susceptible to clock pulse and other forms of distortion from digital devices. To reduce this type of noise, Onkyo has developed DIDRC technology for use in our hi-fi components. However, the S/N ratio reflects static noise only, and takes no account of another type of noise that occurs as the byproduct of sound reproduction-dynamic noise. Since the advent of digital audio, signal-to-noise ratios have improved dramatically. The silent disc mechanism and solid die-cast aluminum tray epitomize the unit's audiophile build quality.ĭIDRC (Dynamic Intermodulation Distortion Reduction Circuitry) In keeping with the zero-tolerance approach to interference, digital circuitry and analog circuitry are physically separated, and you have the choice of operating the C-7000R in either digital-only or analog-only mode. All of this highly sensitive componentry is housed in anti-vibration casing, with separate aluminum panels for the top, front, and sides. To ensure minimal signal interference, the C-7000R employs a thermally regulated high-precision clock, PLL ultra-low jitter technology, and a new circuit board construction. The C-7000R brings together features and refinements to bring the very best out of your audio CDs and CD-R/RWs, and even any MP3- or WMA-encoded discs you may have made on your computer. CDs have been with us for decades now and continue to provide a convenient, high-quality listening experience.