being played, and then downloads the title, artist, and track list.

Coaxial

A single copper conductor, surrounded with a layer of insulation, covered by a surrounding copper shield and finally, an insulating jacket. An unbalanced transmission line with constant impedance. In audio, this type is commonly used for low level, line signals terminated in RCA connectors.

Compression

In audio terms, this is a process of temporarily or permanently reducing audio data for more efficient storage or transmission. A temporary reduction in file size is called ‘non-lossy’ compression, and no information is lost. A permanent reduction in file size (such as with MP3 files) is called ‘lossy’ compression, and involves discarding unnecessary information which is irretrievably lost.

D

DC (direct current)

Direct current or continuous current is the constant flow of electric charge. This is typically in a conductor such as a wire. In direct current, the electric charges flow in the same direction, distinguishing it from AC (alternating current).

Decibel (dB)

A unit of measure used to express relative difference in power or intensity of sound.

DHCP

DHCP stands for Dynamic Host Configuration Protocol. It is a protocol for assigning dynamic IP addresses to devices on a network.

Digital

A method to encode information using a binary code of 0s and 1s. Many wireless phones and networks use digital technology.

Digital Audio

Digital Audio is a sound signal that has been converted into numerical values. Digital sound can be transmitted through multiple channels. Analog sound can only be transmitted through two channels.

Duplex (half/full)

Full duplex is the ability to send and receive data simultaneously. Duplex is synonymous with full duplex. Example: when a modem operates in full-duplex mode, it can transmit data in two directions simultaneously. In half-duplex mode it can transmit data in two directions, but not simultaneously.

E

Encryption key

An encryption key is an alphanumeric series that enables data to be encrypted and then decrypted so it can be safely shared among members of a network.

F

Frequency

The property or condition of occurring at frequent intervals. In sound, this simply refers to the regular occurrence of compression and rarification of air that we experience as sound.

Frequency Response

Is the range of frequencies that a speaker reproduces, lowest frequency to the highest. While the optimal normal is 20-20,000 Hz (Hertz), the range of human hearing for individuals is often much more restricted.

Agood full-range speaker system however, reproduces as much of this range as possible to cover all variations. Individual drivers are limited to reproduce only that part of the spectrum for which they were made, so their response is limited, but still a necessary point to consider when designing a complete sound system.

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Philips NP2900 user manual Dhcp
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NP2900 specifications

The Philips NP2900 is a versatile and stylish wireless music player that caters to the needs of audiophile enthusiasts and casual listeners alike. Launched as part of Philips' esteemed line of portable music devices, the NP2900 offers a unique blend of modern technology, ease of use, and high-quality sound reproduction.

One of the standout features of the NP2900 is its ability to stream music wirelessly via Wi-Fi and its compatibility with various streaming services. Users can effortlessly connect the device to their home network, allowing them to access a vast library of songs from their favorite platforms, making it a perfect addition for those who prefer digital music libraries over physical media.

The device is equipped with a built-in digital amplifier, which enhances sound quality and ensures that users experience a rich and immersive listening experience. The NP2900 also supports multiple audio formats, including MP3, WMA, and AAC, giving users the flexibility to play their content without worrying about compatibility issues.

In terms of design, the Philips NP2900 features a sleek and compact form factor that easily fits into any room’s decor. The user-friendly interface includes an intuitive control panel that allows users to navigate their music libraries with ease. Additionally, the device comes with a vibrant LCD display, providing information about the current track and stream options.

For those who enjoy listening to music while on the go, the NP2900’s portable nature means it can be easily moved from room to room, or even taken outdoors, thanks to its rechargeable battery. This functionality is further enhanced by the device's ability to connect to various audio sources via AUX inputs, making it a versatile option for multiple listening scenarios.

Moreover, the NP2900 boasts high-quality speaker drivers that deliver clear and detailed sound, ensuring that every note is heard as it was intended. The unit also features FM radio capabilities, allowing users to tune in to their favorite radio stations, further expanding its range of audio playback options.

In summary, the Philips NP2900 is an innovative music player that brings together modern wireless streaming technology, robust sound quality, and portability in a sleek design. Its diverse feature set serves the needs of music lovers looking for convenience, quality, and versatility in a compact device.
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