Used MAC For Sale

MacPherson, Inc. designs and manufactures high-performance loudspeaker systems for discriminating FOH, floor monitoring, and installation applications.

Our loudspeakers can be found worldwide in concert halls, theaters, churches, theme parks, cruise ships, casinos, and corporate applications.

We're known in the industry for our state-of-the-art Monolith loudspeaker. But you'll find that all of our products share the design philosophy of delivering exceptional sound in compact form....

. Used . . Used .

Crossfade - A value of time that is assigned to a parameter that controls the duration of change from one DMX value to another DMX value or to fade from one scene to another. This is a lighting console term.. Used Lighting. . Used Lighting. ...

Fresnel - Fresnels are typically 8-, 6- or 4-inch, referring to the diameter of the lens. This light is named after Augustin-Jean Fresnel who invented the distinctive Fresnel lens which has a 'stepped' appearan. Used Lighting. ce instead of the 'full' or 'smooth' appearance of other lenses. The stepped nature of the lens causes a corresponding pattern of circles of light, so Fresnel lenses are usually 'stip. Used Lighting. pled' on the flat side. This pattern of small bumps helps to break up the light passing into the lens to smooth out its eventual pattern.

Fresnels use a spherical reflector, with the filament of the bulb ...

Tungsten - Tungsten (formerly wolfram) is a chemical element in the periodic table that has the symbol W (L. wolframium) and atomic number 74. A very hard, heavy, steel-gray to white transition metal, tungsten i. Used Lighting. s found in several ores including wolframite and scheelite and is remarkable for its robust physical properties. The pure form is used mainly in electrical applications but its many c. Used Lighting. ompounds and alloys are widely used in many applications (most notably in light bulb filaments and in space-age superalloys).

Pure tungsten is steel-gray to tin-white and is a hard metal. Tungsten can be ...

Pattern - Pattern refers to the shape, quality and evenness of a lamp's output. The pattern of light an instrument makes is largely determined by three factors. The first are the specifics of the bulb, reflecto. Used Lighting. r and lens assembly. Different mounting positions for the bulb (axial, base up, base down), different sizes and shapes of reflector and the nature of the lens (or lenses) being used c. Used Lighting. an all affect the pattern of light. Secondly, the specifics of how the lamp is focused affect its pattern. In Ellipsoidal Reflector Spotlights (ERS) and their derivatives (see below), there are two beams of light emit...

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 Lighting. 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 a. Used Lighting. ny optical 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 ...