Denon DVD-5000: World's First THX Ultra DVD Player

Key Features and Technologies

• Newly-developed AL24 Processing

  This technology reduces quantization distortion and provides ultimate analog waveform reproduction, supporting higher bit numbers and sampling rates up to 96 kHz. It senses input data and interpolates it to faithfully replicate the original analog waveform.

• Multiple 24-bit, 96 kHz D/A Converter

  Utilizes a 4-DAC 24-bit, 96 kHz sampling D/A converter system for high-fidelity conversion of 24-bit data from AL24 processing. Achieves a signal-to-noise ratio of 118 dB and a dynamic range of 108 dB.

• THX Ultra Certified

  Meets Lucasfilm's THX Ultra standards for recreating a movie theater experience at home, covering audio quality, video quality, and user interface for optimal DVD program playback.

• High-speed, Precision 10-bit, 27 MHz Video D/A Converter

  Processes DVD video data with a high-speed, high-precision 10-bit, 27 MHz video D/A converter to preserve original purity and improve the reproducibility of minute details for faithful color and high resolution.

• HDCD Decoder

  Features HDCD technology for encoding and decoding that reduces digital recording distortion while maintaining compatibility with existing CD formats. It converts 24-bit data to the 16-bit CD format without sacrificing sound quality, preventing distortion during peak periods and boosting low-level signals.

Advanced Construction and Components

• Independent D/A Converter

  The front panel Source switch allows digital input signals (optical or coaxial) to pass through the AL24 Processor and D/A converter for clean, accurate analog output.

• Color Component Video Output

  Provides component signal video output for faithful analog signals from direct D/A conversion of Y, Cb, and Cr signals. Also includes S-Video and composite video outputs.

• Vibration-resistant Construction

  Features a centrally located holder with a low center of gravity, secured with mechanism brackets to a rigid, copper-plated chassis. Isolated circuits on copper-plated boards and vibration-absorbent sintered alloy insulators ensure protection from internal and external vibrations. The chassis includes a 15mm thick aluminum front panel, double-layered top cover, and quadruple-layered bottom chassis assembly.

• Easy-to-use Graphical User Interface (GUI)

• Parts Strictly Selected for Sound Quality

  Uses three separate transformers for audio, video, and control sections, with vibration-resistant materials. Includes high-performance components like ultra-thick AC power cords, low ESR electrolytic capacitors, film capacitors, carbon resistors, and high-speed operational amplifiers.

• High-performance Pickup and Digital Servo Technology

  Employs a self-excited oscillator type red laser (650nm) and an integral molding hologram pickup lens for stable, low-noise performance and accurate reading of DVD and CD program sources, ensuring short signal paths and high reliability.

• Gold-plated Audio and Video Terminals

• Digital Theater Systems (DTS) Compatible Digital Output

• Easy-to-use Remote Control with Backlit Keys

ALPHA Processing and AL24 Processing Explained

AL24 Processing expands input signal bit length to 24 bits. It uses two calculating circuits to generate eight lower bits, which are then added to the upper 16 bits of data, producing a 24-bit quality output signal. This process, illustrated in Figure 2, involves taking the original 16-bit signal (A), extruding the rate of change (B), generating lower-order bits (C), combining them to create a new waveform (D), and finally adding the higher-order bits to produce the synthesized 24-bit waveform (E), resulting in superb audio clarity.

Figure 1: AL24 Processor Block Diagram

Figure 2: How AL24 Processing Works on Audio Signals

Diagrams show the process of AL24 processing, illustrating the generation of higher-order bits, lower-order bits, and the final synthesized waveform for improved audio quality.

Specifications

Video Section

• Signal System: NTSC
• Discs Played: DVD Video Disc, Video CD, Music CD
• Video Output: 1 Vp-p (75 Ω load, sync, negative polarity)
• S-Video Output: Y output 1 Vp-p (75 Ω load, sync, negative polarity), C output 0.286 Vp-p

Audio Section

• Audio Signal Output (Fixed): 2 Vrms (1 kHz, 0 dB)
• Audio Signal Output (Variable): 0-2 Vrms
• Frequency response (96 kHz sampling): 2 Hz to 44 kHz
• Frequency response (CD Audio 44.1 kHz sampling): 2 Hz to 20 kHz
• S/N (DVD/CD): 118 dB
• Dynamic Range (DVD): 108 dB
• Dynamic Range (CD): 100 dB
• Total Harmonic Distortion (DVD/CD): 0.0015/0.0018%
• Sampling Frequency: 32, 44.1, 48, 96 KHz

General

• Weight: 16.5 kg (36.4 lbs)
• Dimensions: 434 (W) x 135 (H) x 374 (D) mm (17.1" x 5.3" x 14.7")
• Power Supply: AC 120 V, 60 Hz

Connections and Block Diagram

The DVD-5000 features various output terminals including Optical and Coaxial digital outputs, and analog audio outputs (Fixed and Variable). The block diagram illustrates the signal flow from the optical pick-up unit through various processing stages, including the AL24 Processor and D/A converters, to the final outputs.

Diagram showing the signal path from the optical pick-up unit to various outputs, including digital and analog audio.