The sampling frequency, number of bits and number of channels used for recording of music, etc., in studios has been increasing _nrecent years, and there are a growing number of high quality signal sources, including 96 kHz/24 bit 5.1-channel sources.

For example, there are high picture/sound quality DVD video sources with 96 kHz/24 bit stereo PCM audio tracks.

However, because the data rate for these audio tracks is extremely high, there are limits to recording them on two channels only, and since the quality of the pictures must be restricted it is common to only include still pictures.

In addition, 96 kHz/24 bit 5.1-channel surround is possible with DVD audio sources, but DVD audio players are required to play them with this high quality.

DTS 96/24 is a multi-channel digital signal format developed by Digital Theater Systems inc. in order to deal with this situation.

Conventional surround formats used sampling frequencies of 48 or 44.1 kHz, so 20 kHz was about the maximum playback signal frequency. With DTS 96/24, the sampling frequency is increased to 96 or 88.2 kHz to achieve a wide frequency range of over 40 kHz.

In addition, DTS 96/24 has a resolution of 24 bits, resulting in the same frequency band and dynamic range as 96 kHz/24 bit PCM.

As with conventional DTS Surround, DTS 96/24 is compatible with a maximum of 5.1 channels, so sources recorded using DTS 96/24 can be played in high sampling frequency, multiple channel audio with such normal media as DVD videos and CDs.

Thus, with DTS 96/24, the same 96 kHz/24 bit multi-channel surround sound as with DVD-Audio can be achieved while viewing DVD-Video images on a conventional DVD-Video player (_ 1). Furthermore, with DTS 96/24 compatible CDs, 88.2 kHz/24 bit multi-channel surround can be achieved using normal CD/LD players (_ 1).

Even with the high quality multi-channel signals, the recording time is the same as with conventional DTS surround sources.

What's more, DTS 96/24 is fully compatible with the conventional DTS surround format, so DTS 96/24 signal sources can be played with a sampling frequency of 48 kHz or 44.1 kHz on conventional DTS or DTS-ES surround decoders ( _ 2).

,_ 1 : A DVD player with DTS digital output capabilities (for CD/LD players, a player with digital outputs for conventional DTS CDs/LDs) and a disc recorded in DTS 96/24 are required.

_2: The resolution is 24 or 20 bits, depending on the decoder.

71

Page 71
Image 71
Denon AVR-2803/983 manual

AVR-2803/983 specifications

The Denon AVR-2803 is a classic home theater receiver that has stood the test of time, providing audiophiles and casual listeners alike with an impressive array of features and capabilities. Denon's long-standing reputation for quality audio and advanced technology is exemplified in the AVR-2803, making it a desirable choice for home entertainment systems.

One of the standout features of the AVR-2803 is its versatility in handling multiple audio formats. This receiver supports Dolby Digital, DTS, and Dolby Pro Logic II, delivering surround sound that immerses viewers in their favorite movies, music, and games. With 7.1-channel capabilities, it allows for connections to a wide array of speakers, enhancing the overall auditory experience.

In terms of power, the Denon AVR-2803 has a robust 110 watts per channel output, allowing for clear and dynamic sound reproduction, even at high volumes. The receiver is equipped with high-current amplifiers to ensure that it can efficiently power both low-impedance and high-efficiency speakers, a characteristic that reflects Denon’s commitment to quality sound.

Another notable aspect of the AVR-2803 is its extensive connectivity options. With multiple audio and video inputs, including composite, S-Video, and component inputs, users can connect a range of devices such as DVD players, gaming consoles, and satellite receivers. The inclusion of a built-in AM/FM tuner provides additional entertainment options, allowing users to enjoy their favorite radio stations.

The AVR-2803 also features Denon’s proprietary setup assistant and Audyssey MultiEQ room correction technology. This technology analyzes the acoustics of the room and adjusts the sound output to ensure optimal audio performance, creating a more balanced and immersive sound environment tailored to the specific characteristics of the listening space.

Additionally, the receiver includes a user-friendly on-screen display for easy navigation and setup, making it accessible for users regardless of their technical expertise. The Denon AVR-2803 exemplifies a blend of power, precision, and advanced technology, making it a brilliant choice for anyone looking to elevate their home audio experience. With its enduring quality and impressive features, the AVR-2803 continues to be a reliable choice for home theater enthusiasts.