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DMX
is good for DJs.
Originally
developed for theatrical lighting, the DMX control protocol
has been embraced by most manufacturers of mobile DJ lighting
products. As a result, DJs now enjoy unprecedented lighting
flexibility and power. By linking multiple “intelligent”
lights together, DJs can create truly impressive effects
with minimal hassle. Many DJs are also finding such DMX-controllable
systems to be more versatile, portable and cost-effective
than traditional mobile lighting.
In
1986 the United States Institute for Theatre Technology
(USITT) first established the DMX 512 lighting protocol.
DMX is actually a 512-channel digital multiplex data transmission
standard for controlling theatrical lighting dimmers, but
it has been successfully adapted for other applications
by the lighting industry. It does not provide power for
lights.
DMX
signals are used for much more than just turning lights
on or off; intelligent DMX systems can provide total control
of lighting colors, gobos, movements, and speeds. Combined
with a modern sound system and appropriate music selection,
intelligent lighting can create moods from elegant to electric.
With a little ingenuity, even the plainest room can be transformed
into a stylish lounge or even a funky nightclub. The applications
of DMX-controllable lighting are limited only by a mobile
DJ’s imagination and budget.
DMX
has become the recognized communication standard for the
mobile lighting industry. “We have decided to make all of
our intelligent products with DMX 512,” explains Toby Velasquez,
Operations Manager of Los Angeles-based manufacturer American
DJ. “Making all of the products with one universal language
helps consumers in many ways,” he notes, primarily because
DJs can easily use different brands of intelligent lighting
gear together. Also, the DMX protocol is meant to be backwards-compatible,
so existing equipment won’t become obsolete any time soon.
Advances
in technology (and free market pressures) have encouraged
the development of both cheaper and better intelligent lighting
products. “We have DMX intelligent lights that are no bigger
than the old Moonflowers,” notes Barry Abrams, Product Development
Manager for Hollywood, Fla.-based manufacturer Chauvet Lighting.
Innovative design and construction, exemplified by products
like Martin Professional’s popular MX and CX series of intelligent
instruments, have led to major weight savings, too. Mobile
DJs looking for a competitive edge have never had it so
good.
The
simplest DMX-controllable light is the color changer. This
type of luminaire is an excellent alternative to conventional
PAR cans and pin spots. Units like the American DJ Color
150 and Chauvet CH-520 can be aimed to illuminate mirror
balls, dancefloors, and even small stages. When connected
to a DMX controller, these lights allow DJs to trigger changes
of color or blackouts at any time during events. Because
of this flexibility, a single DMX color changer can replace
a dozen PAR lights with different gels. Even without a central
controller, most of these instruments can still provide
a nice amount of visual excitement by automatically changing
color to the beat while operating in “stand-alone” mode.
Sophisticated
color changers, such as the Martin CX-4 and the High End
Systems Color Pro HX, allow DJs to remotely adjust light
beams from flood to spot, insert various gobos, and strobe
or dim the overall output. These instruments are also capable
of producing UV light effects. Such features add significant
versatility to mobile lighting rigs. “Why buy just a PAR
can? Why buy just a pin spot, or just a strobe, or just
a black light?” asks Dave Chesal, Entertainment and Leisure
Segment Manager for Sunrise, Fla.-based Martin Professional.
“Now you’ve packed up four lights. Why not buy one light
that has all those attributes and personalities? Get a fixture
that’s multi-purpose,” Chesal suggests. “Simplify your life.”
The
most common kind of intelligent light for mobile use is
the scanner, which uses a movable mirror to reflect its
light in the desired direction. For the general, DJ-hiring
public, intelligent lighting means two or more scanning
instruments on a truss. DMX-controllable scanners, like
the American DJ Ultrascan-250 and the High End Systems Trackspot,
are typically used to fill rooms with moving beams of light,
although they can also be employed as fixed color changers
in lieu of PAR cans or pin spots. Scanners can even be pressed
into service as small followspots for stage productions.
Because of their unparalleled versatility, scanners are
the most cost-effective type of DMX-controllable light.
Scanners,
like color changers, usually feature different gobos and
variable-speed stroboscopic shutters. Some are fully dimmable.
A few units, like the futuristic Abstract VR-8 (distributed
by Hollywood, Fla.-based Tracoman) and the Martin MX-1,
are visually appealing even when they’re turned off. Basically,
intelligent scanners for mobile applications are better
now than ever before. Lamps are brighter, motors are smoother,
and optics are sharper. For DJs who remember those clunky,
funky, first-generation scanners, current models seem almost
too good to be true.
Until
recent years, moving head intelligent lights were just not
practical for DJs. Now, however, manufacturers are producing
(and aggressively marketing) several products specifically
designed for mobile use, such as the Martin Mini-MAC, the
Tracoman Fly, FAL PF3601 (distributed by Livonia, Mich.-based
KLS) and the Studio Due Shark 150 (distributed by Kent,
Wash.-based OmniSis- tem). The new breed of moving heads
offer 360 degrees (or more) of panning, spinning gobos,
and radical styling. Their broad bases are suitable for
floor or pedestal placement, so DJs can explore new lighting
angles.
Nick Freed, the Eastern US Director of Sales for Tracoman,
points out that moving heads like the Coemar ProSpot LX
also offer mobile DJs some unique promotional capabilities.
“You can place six indexable gobos in the gobo positions,
effectively creating six moving billboards,” Freed explains.
A DJ could advertise his own business, project a client’s
logo for corporate gigs, or light up a reception hall with
the names of the bride and groom. “That’s a great tool for
making extra money for mobile DJs,” adds Freed. While prices
and weights are still rather hefty, even a single moving
head can serve as a stunning centerpiece for an intelligent
lighting rig.
Intelligent
effect lights are somewhat more limited than DMX-controllable
color changers, scanners, and moving heads. Although they
simply aren’t appropriate for every mobile gig, intelligent
effects allow mobile DJs to create an immersive, authentic
nightclub experience at any event. Patrons at teen dances,
in particular, respond well to creative applications of
intelligent effect lighting.
Some
intelligent effects, like Martin’s Acrobat, American DJ’s
DJ Roller, Chauvet’s Explorer, KLS’ Fandango, and OmniSistem’s
RotoScan are really scanners fitted with motorized mirror
drums. The resulting shower of light is quite dramatic,
and their sweeping movements blend nicely with standard
scanners. Additionally, the color and gobo changes of these
fixtures can be synchronized with those of similar scanning
lights for a fully integrated light show.
Other DMX-controllable effects, such as the American DJ
Radd and the Martin Destroyer, are based on traditional
Moonflower designs. The ability to change color and gobo
combinations on demand makes these intelligent instruments
much more useful than their simple predecessors. Through
DMX, DJs are now able to color coordinate their Moonflowers
and other effects for a more cohesive and powerful look.
A
few intelligent effects, like the American DJ Fascinator
and the legendary Martin SyncroZap, are difficult to classify.
Because they aren’t directly related to older disco effects
or existing intelligent lights, these unique instruments
really must be seen to be appreciated. Again, such fixtures
have limited uses, but DJs who work a lot of school dances
may find these effect lights to be solid investments. While
they aren’t centerpieces in the traditional sense, these
distinctive DMX-controllable instruments provide a lot of
visual firepower.
The
latest and greatest intelligent color changers, scanners,
moving heads, and effects lights are frequently fitted with
powerful high-intensity discharge (HID) lamps. Unlike the
halogen bulbs found in lesser luminaires, HID offers “2,000-
to 6,000-hour lamp life and higher (whiter, brighter to
the eye) color temperature,” according to Tracoman’s Freed.
Also,
because they lack a filament, HID lamps are much less susceptible
to vibration-induced failure. As a result, “a mobile DJ
isn’t going to change bulbs for a year,” explains Martin’s
Chesal. The long life spans of HID lamps generally make
them much cheaper, over time, than dimmer, delicate halogen
bulbs.
Discharge
lamps offer DJs another advantage. “In a lot of mobile environments
you’re competing with the room lighting,” notes Chesal.
“You can’t control ambient light levels. You want the brightest
possible fixture in order to punch through the air,” he
says, because “the customer wants to see those beams.” Investing
in a fancy, DMX-controllable lighting system that’s handicapped
by weak bulbs doesn’t seem too bright, now does it?
So-called
intelligent lights are actually pretty dumb – at least on
their own. Although manufacturers have greatly improved
their products’ stand-alone performance capabilities, it
takes a decent controller, some quality cables, and a bit
of creativity to realize the full potential of intelligent
lighting.
For
mobile DJs on a budget, it may be possible to get by without
a DMX controller. Many intelligent lights may be operated
in “master-slave” mode by daisy-chaining several units together
and making the appropriate DIP switch adjustments. Configuring
instruments in this manner allows DJs to set multiple lights
to follow the stand-alone commands of one master fixture.
Running intelligent lights in master-slave mode is much
more effective if individual instruments, like the Martin
MX scanners, can be set to “reverse pan” and/or “reverse
tilt” the master DMX commands for better symmetry. This
is also a useful trick to remember if your primary controller
is ever out of commission.
Ultimately,
though, most DJs with intelligent lights will want a dedicated
DMX controller. Products like NSI’s MLC-16, American DJ’s
Show Designer, and Martin’s 2518 can be used to control
intelligent lights individually or in groups. They can also
be programmed, in advance, to run user-defined light shows
to the beat of the music. DJs can select custom lighting
color palettes for special events, or choose appropriate
effects for different genres of music. DJs who deal with
a lot of requests or have to concentrate on beat-matching
may prefer minimalist, pre-programmed controllers, like
the Martin MC-Showtime, which offer plug-and-play DMX convenience.
Another
option for mobile DJs is some sort of computer-based DMX
controller. Being able to run lights from a laptop is pretty
slick, as long as both the operator and operating system
are up to the task. (Hint: Don’t try to run PCDJ simultaneously).
Software controllers promise superior performance for computer-savvy
DJs, but they also require a degree of commitment and technical
prowess. The two of the more popular programs on the market
right now are Chauvet’s Show Xpress and Martin’s Light Jockey.
These applications run under Windows, and come with interfaces
for communicating with DMX-controllable lights in real time.
Light Jockey (which may be downloaded for free at www.martin.dk)
also includes an indispensable off-line “visualizer”; users
can use this function to create a virtual banquet hall,
“load-in” various lights, and see what it’ll look like the
night of the event. Now DJs can program light shows anytime,
anywhere.
The
most sophisticated, DMX-controllable lighting rig is only
as good as the cables used to connect everything. Because
the DMX protocol has no provision for error correction,
it’s important to maintain the integrity of the control
signal for consistent, glitch-free performance. Radio-frequency
DMX commands travel between instruments at roughly half
the speed of light, so using the right cables is mandatory.
Just because data cables look like microphone cords on the
outside doesn’t mean they work the same on the inside. Also,
using a proper data termination plug at the end of the equipment
daisy chain prevents the DMX signal from bouncing back upstream
when it hits the end of the line.
Intelligent
lighting gear isn’t cheap. Is it really worth the expense
for mobile DJs? “Properly used,” claims Tracoman’s Freed,
“high-quality moving lights can be the focal point of any
wedding, party, rave, or corporate function.”
Adds
Chauvet’s Abrams: “In today’s world, everybody has to get
a little bit into DMX.” Obviously, mobile operators have
to make their own business decisions, but intelligent lighting
can no longer be simply dismissed as a luxury. The mobile
DJ industry is becoming increasingly competitive. Consumers
are demanding bigger and better forms of entertainment,
and professional DJs are meeting this challenge in different
ways. Intelligent lighting is one marketing tool that impresses
clients, generates referrals, and seals deals. Indeed, Martin’s
Chesal believes that more DJs are getting into DMX-controllable
systems “because now they’ve realized that a good lighting
package is actually revenue-producing for them.”
Intelligent
lighting is also a powerful medium for artistic expression.
Many DJs simply enjoy adding a great light show to their
music mixes, even if their particular equipment investments
don’t make much financial sense. There’s nothing wrong with
buying and using DMX lighting gear just because you want
it (and can afford it). If intelligent lighting makes DJing
more satisfying, then that’s reason enough to have it. There’s
never been a better time to buy DMX-controllable lighting,
and the mobile DJ business certainly isn’t going to become
less competitive any time in the foreseeable future.
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