Adastra A2 2.0 channels Black

  

Adastra A2 2.0 channels Black. Images for illustration purposes only.

Fully featured stereo amplifier with mixer section for 2 microphones and a stereo audio source. An inbuilt media player section offers playback of mp3 audio tracks from USB drive or SD card and also has a Bluetooth receiver and FM radio tuner. A rotary switch selects between 2 rear stereo inputs, a front 3.5mm stereo input or the built-in media player.

Speaker connections on the rear panel are via 4mm binding posts, which can drive up to 2 x 8 Ohm speakers per channel to deliver 2 x 200W. Designed to offer installers a flexible solution for P. And music playback in bars, restaurants and function rooms.

FM radio tuner with external aerial connection. Media player with USB/SD playback. The lowest and the hightest frequencies that can be inputted/produced. RMS (Root mean square) is a measure of the continuous power required by a device, in particular audio amplfiers and loudspeakers.

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%. 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.

The maximum power (usually measued in watts) that can be transmitted through a channel. An audio output channel is an electric circuit which acts as a path for a signal produced by a device. A device may have several audio output channels. A display which is part of the product, so you do not need to attach another display. Weight of the packaged product.

The distance from the top to the bottom of the packaging. The distance from the front to the back of the packaging. The distance from one side of the packaging to the other. The socket where a microphone is connected to the device. How headphones connect to a device e.

Wirelessly or via a cable and connector. Number of sockets /ports where headphones are connected. USB 2.0 ports quantity. 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.

The type of connection used for the speakers e. Features that protect the device against power problems e. Over current, Over voltage, Overheating, Short circuit. The voltage of the AC electricity that is inpitted into the product. The number of channels the device has.

There can be an individual input or output for each channel. The method used to cool the device or to cool the air around the device. Device that attempts to reverse the distortion incurred by a signal transmitted through a channel.

The button which is pressed to switch the device on or off. The spase that device fill in rack. Weight of the product without packaging (net weight). If possible, the net weight is given including standard accessories and supplies.

The measurement of the product from head to foot or from base to top. The distance from the front to the back of something. The measurement or extent of something from side to side.