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1.2W RMS; 3.5mm Aux Input; Active USB Power Speakers
| Loudspeakers | |
| Audio output channels 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. | 2.0 channels |
| Speaker placement The position of the speaker. | Tabletop/bookshelf |
| Number of drivers The quantity of drivers, which are individual transducers that converts electrical energy to sound waves. | 1 |
| Driver diameter | 6 cm |
| Audio | |
| RMS rated power RMS (Root mean square) is a measure of the continuous power required by a device, in particular audio amplifiers and loudspeakers. | 4 W |
| Frequency range The lowest and the hightest frequencies that can be inputted/produced. | 30 - 20000 Hz |
| Signal-to-Noise Ratio (SNR) This is the ratio of signal intensity to noise intensity. | 85 dB |
| Total Harmonic Distortion (THD) 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%. | 0.5% |
| Performance | |
| Recommended usage What the product should be used for, and how it should be used (e.g. ambient temperature). | PC |
| Product colour The colour e.g. red, blue, green, black, white. | Black, Grey |
| Volume control | Rotary |
| 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. |
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| On/off switch The button which is pressed to switch the device on or off. |
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| Ports & interfaces | |
| Connectivity technology The technology that enables connectivity of the device, e.g. wired or wireless. | Wired |
| 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. |
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| 3.5 mm connector |
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| Headphone outputs Number of sockets /ports where headphones are connected. | 1 |
| AUX in |
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| Packaging content | |
| Warranty card |
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| Manual |
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| SKU | 355348 |
| MPN | R12U-BLACK |
| Brand | Edifier |
| Product Condition | Brand New/Unused |
| Stock Availability | Available for Shipping |
| Warranty Period | 1 Year Warranty |
| Warranty Contact | https://www.edifier.com/ |