DJ Effects and Stage Accessories

Cases, stands and seats: fit and load ratings

Hard cases and bags are often cut for a specific mixer or controller, so match the model name and the inside dimensions rather than just the size class. Rack gear is measured in rack units, where one unit is 1.75 inches tall, in a 19-inch wide frame. Stands and performance seats list a maximum load, such as the 250 pound rating shown on one chair, so check it against your own weight or equipment plus a safety margin. Wheels help on long hauls.

Fluids and DMX for effect machines

Fog, haze and other effect machines run on fluids made for them, and using a different type can clog or damage the unit. Many are triggered by a wired remote or a DMX controller. DMX is a lighting-control protocol: each fixture is given a start address on a 512-channel line and linked with a data cable that ends in a terminator. Check the venue's rules before using hazers, smoke or spark effects, and confirm the voltage rating matches the supply where the gear will be used.

Questions about DJ Effects and Stage Accessories

How tall is one rack unit?

One rack unit, written 1U, is 1.75 inches of vertical height inside a standard 19-inch wide rack. A 2U device is twice as tall. When buying a rack case or shelf, add up the units of your devices and allow space for cables and ventilation.

Can I use any fluid in a fog or haze machine?

No. Use the fluid type the machine maker specifies, such as water-based or oil-based, and one made for that model. The wrong fluid can clog the heater, leave residue or give a poor effect.

What is DMX and do I need it?

DMX is a standard way to control stage lights and effects from one controller. Many fixtures also run alone in sound-active or automatic modes. You need DMX when you want precise control of colors, timing and machines from a desk.