Micro HiFi-System with CD, USB, DAB+ and Bluetooth Audio-Streaming<br>The M-420DAB combines a classical elegant look with modern features like a DABplus receiver and wireless audio-streaming via BLUETOOTH.

2 x 7 W, DAB+, FM, RDS, Bluetooth, USB, CD

Type

The colour e.g. red, blue, green, black, white.

Product colour

CD player, DVD player or other device able to play optical discs.

Optical disc player

Type of tape machine for playing and recording cassettes.

Cassette deck

Type of mechanism by which the optical disc is loaded into the product.

Disc loading type

The button which is pressed to switch the device on or off.

On/off switch

Design

The quantity of speakers included in/with the product.

Number of speakers

RMS (Root mean square) is a measure of the continuous power required by a device, in particular audio amplifiers and loudspeakers.

RMS rated power

The effective resistance of an electric circuit or component to alternating current, arising from the combined effects of ohmic resistance and reactance.

Impedance

Total harmonic distortion is a measure of non-linear harmonic

distortion and is given in %. Non-linear harmonic distortions are

signals which were not present in the original before the signal was

converted by the headphones. These unwanted signals are caused by the

diaphragm, whose movements do not precisely move in time with the

electric signals that cause it to move. Unfortunately, this is a

feature of all electroacoustic transducers. Although it cannot be

completely eliminated, suitable steps can be taken to minimise it.

However, the user is not interested in why this distortion takes place

but in how great the level of distortion must be for it to become

perceptible. According to the findings of several research projects, a

total harmonic distortion of 1% in the frequency range of 100 to 2000

Hz is imperceptible. Below 100 Hz, the perceptibility threshold lies

at 10%.

Total Harmonic Distortion (THD)

The lowest and the hightest frequencies that can be inputted/produced.

Frequency range

Audio amplifier

Multimedia

The bands which the radio can receive e.g. FM, MW, LW.

Supported radio bands

RDS (Radio Data System) means that information such as time, station identification and programme information can be displayed by the device.

Radio Data System (RDS)

RDS features

The type of radio tuner e.g. analog, digital.

Tuner type

The frequencies (usually measured in Hertz) which can be picked up in the FM radio range. The usual frequencies are between 87.5 to 108.0 MHz

FM band range

Preset stations

The number of preset radio stations that can be stored. The preset stations are the ones that can be reached by pressing a button; they do not require manual tuning.

Preset stations quantity

Radio

Display type

A backlight is a form of illumination used in liquid crystal displays (LCDs). As LCDs do not produce light themselves - unlike for example Cathode ray tube (CRT) displays -  they need illumination (ambient light or a special light source) to produce a visible image. Backlights are used in small displays to increase readability in low light conditions such as in watches, and in computer displays and LCD televisions to produce light in a manner similar to a CRT display.

Backlight display

Display

An Ethernet LAN (Local Area Network) interface is present, for a wired conection via a cable.

Ethernet LAN

Popular technology that allows an electronic device to exchange data or connect to the internet wirelessly using radio waves.

Wi-Fi

Bluetooth is a low-power radio technology developed to replace the cables and wires currently used to link or connect electronic devices such as personal computers, printers, and a wide variety of handheld devices including mobile phones. Because it uses radio-wave connectivity, a Bluetooth-enabled device has a constant, established connection to whatever browser it uses. This saves the user the trouble of logging on to check for emails or news updates, for example.

Bluetooth

The type of bluetooth technology in the product e.g. Bluetooth Smart (v4.0).

Bluetooth version

Bluetooth range

Network

The device features a socket into which a USB cable can be plugged.

USB port

Apple docking

Number of USB 2.0 ports (connecting interfaces) in the device. USB 2.0 was released in April 2000 (now called "Hi-Speed"), adding higher maximum signaling rate of 480 Mbit/s (effective throughput up to 35 MB/s or 280 Mbit/s), USB 2.0 ports are usually black.

USB 2.0 ports quantity

USB ports quantity

Line-in

USB charging

Power source type

Ports & interfaces

Hi-Fi

MP3 playback

A card reader is a device that enables reading and, in some cases, writing data to and from a memory card.

Card reader integrated

The types of disc which can be used with this device.

Disc types supported

The audio formats which this device or software can read/use e.g. MP3, MP4.

Audio formats supported

The device can play audio or video contact directly from a peripheral device (e.g. memory stick) which is plugged in via a USB connector.

USB direct playback

Performance

Device that attempts to reverse the distortion incurred by a signal transmitted through a channel.

Equalizer

Equalizer modes

Volume control

Electronic device that plays audio compact discs (CDs).

CD player

Ergonomics

What is providing power for the product e.g. mains electricity.

Power source

Amount of power consumed by this model, often expressed in watts (W). Typical values that manufacturers give are power consumption when off, standby/suspended mode, typical use, maximum usage.

Power consumption (typical)

The amount of electricity that is consumed when the product is on standby.

Power consumption (standby)

The voltage (V) which is required to power the product.

Input voltage

The frequency (Hz) which is required to power the product.

Input frequency

Power

Front speaker width

Front speaker depth

Front speaker height

Front speaker weight

Main unit dimensions (WxDxH)

Main unit weight

The distance from one side of the packaging to the other.

Package width

The distance from the front to the back of the packaging.

Package depth

The distance from the top to the bottom of the packaging.

Package height

Package weight

Weight & dimensions

Quantity

Component of an electronics device, most commonly a television set, DVD player and home theater systems originally used for operating the device wirelessly from a short line-of-sight distance.

Remote control included

Packaging content

M-420DAB

Kenwood M-420DAB home audio system Home audio micro system 14 W Black

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