Details

Hercules 4780687 XPS 2.1 20 Arc Speaker System WhiteThe Hercules 4780687 XPS 2.1 20 Arc speaker system features high-quality sound, combined with an attractive arched shape and unique design and satellites feature a white lacquer finish. Metallic, black lacquer protective grille for speaker drivers. Wideband, magnetically shielded speakers, wooden subwoofer (with volume control) and wired remote with volume control and line input to connect any MP3 player. Satellite dimensions: 23.8 x 6.5 x 6.5 cm, connection cable to audio source. speaker unit reproducing an acoustic wave from an electrical signal which vibrates one or more membranes, the movements creating a sound wave.

2.1 Channel SupportSystem for transmitting sound over three channels, with 2 channels reproducing medium and high range frequencies and 1 channel reproducing bass frequencies.

SubwooferThe subwoofer is a speaker which reproduces bass frequencies, and is often larger than other types of speakers as bass frequencies require larger membranes than is the case with high or medium frequencies. A single subwoofer is most often included in a speaker kit: as bass frequencies are transmitted all around the membrane (omnidirectionally) and not just in front of the membrane, a single subwoofer is sufficient to provide rich bass sound all across an area, as long as it is powerful enough. In a X.1 kit (2.1, 4.1, 5.1, 6.1 or 7.1), the digit after the period, i.e. the 1, signifies that 1 subwoofer is included.

SatelliteSatellite is the name given to a speaker which does not reproduce bass frequencies: this speaker is therefore the satellite to a subwoofer. In a X.1 kit (2.1, 4.1, 5.1 , 6.1 or 7.1), the digit before the point 1, i.e. the 2, 4, 5, 6 or 7, represents the number of satellites in the speaker kit.

RCAAn RCA connector (also known as a phono connector) is a connector used to transfer analog signals. Analog audio: RCA is the most commonly used connector for connecting Hi-Fi components to one another. Each RCA plug transfers one channel: the left channel via a white RCA plug, the right channel via a red RCA plug. Composite video: composite video is generally transmitted via a yellow RCA plug. RCA is also used to transfer a stereo or 5.1 (Dolby Digital or DTS) digital S/PDIF signal over a single connector, between a DVD player and a Dolby decoder, for example. An RCA connector is composed of a circular central pin 2mm in diameter, which carries the signal, insulated inside of a ring which surrounds the central pin without touching it, at a distance of 2mm from the pin.

Watts RMSPower in Watts RMS represents the continuous electrical power delivered by an amplifier to speakers.

Watts Peak PowerWatts Peak Power represents the peak electrical power delivered by an amplifier to speakers.

Magnetic ShieldingMagnetic shielding shields against the magnetic field generated by speakers, for example. If a speaker is touching a CRT screen (television or computer), magnetic shielding is necessary to avoid disturbing the display.

Line InputAnalog audio input designed to receive an unamplified sound signal. There are 2 line levels: the general public line level, at -10dBv: this is the signal output level of a Hi-Fi component connected to an amplifier via a connector known as a line input. The professional line level, at +4dBu, is much more powerful, and is used to connect studio or public-address (PA) equipment.

StereoAbbreviation of stereophonic. A stereophonic signal is a signal transmitted over 2 channels: one channel on the left and one channel on the right, whereby the sound transmitted is different on each channel.