It was DJ Miguel Garcia's first time at last month's National Assn. of Music Merchants' big trade show in Anaheim, but he was in his element, hunched over an expensive DJ rig while spinning his own dance music.

"These are probably the best you can get," said the 18-year-old house music performer, who goes by the stage name MikeeyKrook, admiring the Pioneer DJ digital decks and mixers while pumping out his song "Pyramid."

Although the annual NAMM Show is widely known as the place to check out new guitars and amps, manufacturers, retailers and musicians can hear the crescendo of business in a different venue: DJs making electronic dance music, or EDM.

Once relegated to raves in warehouses, the electronic music culture has produced international superstars such as Skrillex and Tiesto and has expanded to events such as Electric Daisy Carnival and Electric Zoo Festival, which have put DJs in front of the glow stick masses.

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Companies such as concert giant Live Nation Entertainment Inc. have invested heavily in the genre, and SFX Entertainment Inc., the EDM concert promoter headed by Robert F.X. Sillerman, went public last year.

U.S. sales of DJ gear are growing steadily, driven largely by the digital controllers that mimic the traditional turntable and mixer setup and are the tools of choice for young, aspiring DJs.

Controller sales increased 30% to $31 million in 2012, according to the latest figures from the Music Trades Magazine. Retail revenue from the whole DJ segment — which includes mixers and lighting equipment — grew to $120 million in 2012, up more than 5% from the previous year. In 2011, revenue increased 11%.

That's above the industry average. Overall U.S. sales of music and sound products increased just 1.7% to $6.7 billion in 2012.

Pioneer, the Japanese electronics company with an office in Long Beach, was not the only brand capitalizing on the interest. Companies such as Numark, Hercules and DJ Tech all had booths at the show to display their new wares. This convention even boasted its first performance stage just for EDM artists.

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"Everyone's here," Garcia said, admiringly.

Christopher Bennett, vice president of communications at Guitar Center, the world's largest music gear retailer, said the company's DJ sales grew 50% over the last three years. The company even offers DJ classes in some cities.

"I'd never have thought parents would be taking their kids to DJ lessons when they once might have taken them to piano lessons," Bennett said.

Los Angeles DJ Aero, a regular attendee at the NAMM Show, said he has noticed the change in the business as dance genres such as electro-house become more established in the mainstream, driven by the popularity of artists including Tiesto, Steve Aoki and David Guetta.

Aero (given name Chester Deitz), best known as Tommy Lee's DJing partner, said he's seen an increased presence of digital DJ decks and controllers at company booths at NAMM in recent years.

"It's exploding," he said. "It wasn't like this in the '90s. This is big business. Big companies are actually doing it."

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Aero plays music that can be broadly termed electro-house, popularized by artists such as Skrillex, Wolfgang Gartner and Deadmau5.

Attending the NAMM Show helps him keep up with the competition, he said.