Buy Used M1Active 620 by Alesis

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M1Active 620 Monitors

The M1Active 520 and 620 are the third generation of the Acclaimed Alesis M1 Active Series. Both 520 and 620 models offer incredible bass and midrange definition and flat frequency response from their high-precision drivers and professionally–crafted crossovers.

Alesis Monitors

Dichroic - In optics, the term dichroic has two related but distinct meanings. A dichroic material is one which either causes light to be split up into distinct beams of different wavelengths (colours), or, one . Used . in which light rays having different polarizations are absorbed by different amounts.

The original meaning of dichroic (from the Greek dikhroos, two-coloured) refers to any optic. Used . al device which can split a beam of light into two beams with differing wavelengths. Such devices include mirrors and filters, usually treated with optical coatings, which are designed to reflect light over a ...

Adaptor - A connector allowing more than 2 electrical devices to be connected to a single power source. These connections are normally in parallel (each device is given the same voltage levels), but current is . Used . divided between them. Also known as a "Twofer".

3-way splitters are known as "Threefers".. Used . ...

Incandescent light bulb - The incandescent light bulb (archaically known as the electric lamp) uses a glowing wire filament heated to white-hot by electrical resistance, to generate light (a process known as thermal radiation . Used . or incandescence). The bulb is the glass enclosure which keeps the filament in a vacuum or low-pressure noble gas, or a halogen gas in the case of quartz-halogen lamps (see below) in order to. Used . prevent oxidisation of the filament at high temperatures. In Australia and South Africa a light bulb is also called a light globe.

Because of its poor efficiency and yellowish color, it is being ...

Fresnel Lens - A Fresnel lens is a type of lens invented by Augustin-Jean Fresnel. Originally developed for lighthouses, the design enables the construction of lenses of large size and short focal length without th. Used . e weight and volume of material which would be required in a lens of conventional design.

The Fresnel lens (often pronounced FREZ-nell but usually the original fre-NELL in theatr. Used . ical and motion picture lighting applications) reduces the amount of material required compared to a conventional spherical lens by breaking the lens into a set of concentric annular sections known as Fresnel

Base Station - A base station is a device used to centralize and process communication signals and information between crew members. . Used . . Used . ...

Monitors

Monitors are commonly known as “stage monitors”. Stage monitors are the speakers used on stage that are directed towards the performers so that they can hear themselves while playing. This allows them to monitor how well they are playing. Usually, the monitor speaker is needed when instruments with amplifiers are used in combination with acoustic instruments and the voice. These monitors on stage usually have built in amplifiers and equalizers. These monitors specifically highlight the vocals and the sound of the acoustic instruments so they won’t be enveloped completely by the drums or the other electronic instruments. The audio wedge, wedge monitor, stage wedge, amplifiers, equalizers and monitor mixers all comprise the stage monitor system. There are two types of monitor speakers: the floor monitors and side fill monitors. Usually speakers on stage are heavy duty and require high input power to be able to generate high volume sounds. The floor monitors are the speakers that are placed on the floor. They are compact with the angle back design. Because of its angle appearance, it is also known as “wedge”. The smaller singular speakers are called the “hot spot” monitor that is usually placed on the microphone stand so the performers can easily hear themselves. The two way heavy duty speakers have the woofer and the high frequency horn. The side fill monitors are those found at the upright side of the stage and these allow sound to be heard in places that the floor monitors cannot cover.