Amplifier
Amplifier class:An electronic amplifier, amplifier, or (informally) amp is an electronic device that increases the power of a signal. It does this by taking energy from a power supply and controlling the output to match the input signal shape but with a larger amplitude. Power amplifier circuits (output stages) are classified as A, B, A/B and C for analog designs, and class D and E for switching designs based on the proportion of each input cycle (conduction angle), during which an amplifying device is passing current.
D
Amplifier:Electronic device for increasing the amplitude of electrical signals, used chiefly in sound reproduction.
Built-in
Audio
Frequency range:The lowest and the hightest frequencies that can be inputted/produced.
50 - 20000 Hz
Loudspeakers
Number of woofer drivers:
1
Woofer:Loudspeaker designed to reproduce low frequencies.
Number of tweeter drivers:
2
Tweeter:Loudspeaker designed to reproduce high frequencies.
Number of drivers:The quantity of drivers, which are individual transducers that converts electrical energy to sound waves.
3
Speaker placement:The position of the speaker.
Tabletop/bookshelf
Other features
Output sound pressure level:
100 dB @ 1 m
Control type:The way in which the device is controlled.
Buttons, Rotary
Quick start guide:Instructions, either online, as a computer program or in paper form, to allow you to set up and start using the product quickly.
Packaging content
Cables included:
AC, Audio (3.5mm)
Performance
On/off switch:The button which is pressed to switch the device on or off.
Bass reflex:Type of loudspeaker enclosure that uses the sound from the rear side of the diaphragm to increase the efficiency of the system at low frequencies as compared to a typical closed box loudspeaker or an infinite baffle mounting.
Recommended usage:What the product should be used for, and how it should be used (e.g. ambient temperature).
Universal
Ports & interfaces
Bluetooth version:The type of bluetooth technology in the product e.g. Bluetooth Smart (v4.0).
4.0
Bluetooth: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.
Connectivity technology:
Wired & Wireless
Power
AC input frequency:
50 - 60 Hz
AC input voltage:The voltage of the AC electricity that is inpitted into the product.
100 - 240 V
Power source type:What the power source is.
AC
Weight & dimensions
Weight:Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies. Please note that sometimes the manufacturer leaves out the weight of accessories and/or supplies.
5.1 kg
Height:The measurement of the product from head to foot or from base to top.
185 mm
Depth:The distance from the front to the back of something.
185 mm
Width:The measurement or extent of something from side to side.
350 mm
