MP3

system with the ‘.m4a’ filename extension. M4A can produce better audio quality than MP3 using less physical space for the files.

MHz (Mega Hertz)

One million cycles per second.

Midrange

The middle three octaves (more or less) of the audio band, where the ear is most sensitive, usually between 160Hz-3kHz.

Mono (monaural)

The operation of an amplifier in one channel for both input and output. Can refer to

an amplifier with only one channel of amplification or operating in bridged mode. For low-frequency amplification applications, it provides better phase coherence and less distortion than stereo operation.

A file format with a sound data compression system. MP3 is the abbreviation of Motion Picture Experts Group 1 (or MPEG-1) Audio Layer 3. With the MP3 format, one CD-R or CD-RW can contain about 10 times more data than a regular CD.

Mute

A control found on receivers, and some mixers or signal processing units that silences (mutes) a signal path, or output.

Ohm

Measure of resistance to current (impedance). The lower the impedance of a speaker, the harder it is to drive.

PCM (Pulse Code Modulation) Pioneering form of digital recording.

RDS (Radio Data System)

RDS tuners can automatically tune in stations according to the types of music (or talk) they broadcast. RDS also enables a receiver to display text messages and even graphics (usually call letters and format information) that many FM stations include on a sub-carrier signal within their normal broadcast signal. Some RDS equipped tuners can even override with traffic alerts or emergency broadcasts, during playback of other media - CD MD, or cassette. There are other useful features too, many of which are offered by the growing number of RDS stations.

RF (radio frequency)

An alternating current or voltage with a frequency (or carrier wave) above about 100kHz. It is called radio frequency because these frequencies have a capacity to be radiated as electromagnetic waves by radio (and television) stations.

Rip (ripping)

Using a software program that “grabs” digital audio from a compact disc and transfers it to a computer hard drive. The integrity of the data is preserved, because the signal does not pass through the computer sound card, and need not be converted to an analog format. The digital-to-digital transfer creates a WAV file that can then be converted into an MP3 file.

RMS (Root Mean Square)

A formula that provides a reasonably accurate means to measure and compare continuous AC power. The use of this measure is preferred when matching system components, like amplifiers and receivers.

S/PDIF (SPDIF) (Sony/Philips Digital Interface)

Astandard audio-file transfer-format that was developed jointly by Sony and Philips. S/

38EN

544-9056, HK-0948-MCi500H-FR, MCi500H/05, MCi500H/12 specifications

The Philips MCi500H/12 and MCi500H/05 are innovative music systems designed to deliver high-quality audio experiences while integrating advanced technology for a seamless user experience. These compact systems are a blend of elegance and functionality, making them suitable for any modern home.

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