In the beginning, they used home stereo speakers; now they can present the "Wall of Sound" - and it takes six trailers and a storage facility to hold all the equipment.

Craig Conover and David Snelson started Dynamic Disco in 1977 when they were 14 years old. Using speakers from home, the Springville teens did junior high dances.

Meanwhile, in Mapleton, Mike Duffin and Clark Gomez, also 14, were competitors in the same business.

Now with the homegrown sound and lighting business, Conover and Duffin are partners and have a duo-division company of Audio Visions and AV Productions.

Both Conover and Duffin received amplifiers for Christmas the year they turned 14.

Conover remembers getting a business loan at the bank for $1,000 to by amplifers when he and his first business partner, Snelson, were 16. "Our dads co-signed," he said. "We only had to make $80 a month to pay it back."

After Conover and Snelson paid off the first loan, they returned for another $1,000 loan, this time to buy a couple turntables and a mixer. "We were doing more dances at high schools and college" Conover said.

After a couple of years of attending college, the Springville boys served LDS missions - but not before banking $2,000 to use for music upon their return.

Gung ho as returned missionaries, they were "Big into promotion."

"We did a lot of BYU dances," Conover said. "And we hung out at Mike's family video and pizza business. He was an electrical genius."

Conover and Snelson asked Duffin to help out witht the dances under their name because they had more than the duo could handle. Sometimes they needed to be in four locations on Friday and another four on Saturday. With Duffin's electronic knack, Conover quipped, "I make the money and Mike spends it."

The Orem Fitness Center had a dance every Saturday night that tempted the DJ's. The Springville group began "Battle of the DJs" at the fitness center and one every week for two years.

They also did new wave dances at the old women's gym on Fridays and were involved in the Ivy Tower Dance Club, both in Provo. Especially for Youth at BYU had dances four times a week during eight sessions a summer; Conover and partners worked those dances for eight years.

AV Productions Inc. came into being in January 1986. Conover and Duffin bought out Snelson.

When Conover heard the World Folkfest was coming to Springville in 1986, he said, "Hey, if they're going to do dancing, they will need sound." He asked the Folkfest committee and "they decided to take a chance on us."

"We were clueless," Duffin said.

Conover agreed and said, "We flew by the seat of our pants."

They must have been successful because they've been doing sound and lighting every year since the festival began.

Then along came Conover's little sister, Marcia. She was 14 and wanted to be a part of his music business. The partners would drop her off a various dances before she could drive, help her set up, and then go on to do other dances at other locations.

Marcia Conover Harris now says, "The guys' dances went an hour longer than mine, so I stacked the equipment outside the door when I was done because the school (BYU) had to lock up. I started to sit down on a speaker and read a book and wait for them."

Someone then came outside and saw Marcia sitting there and asked, "Why are you still here?"

When she explained she had no driver's licence or car and was waiting for her brother, the guy said, "I thought you were a freshman?"

"Yeah, in high school." she said.

Harris remembers an even scarier time, her second dance. Craig was helping her carry in some equipment when he tripped on the curb and tore some ligaments in his ankle. Hobbling in pain, he finished helping her set up and said, "Here's the tapes and mixer, and this is how you do it. Have a nice night, I'm going to the hospital."

Now they've done the Oakridge Boys, Credence Clearwater Revisited, Don McLean and The Turtles concerts, plus city celebrations and proms.

They've carried their music as far away as California, Wyoming and Canada.

Janitors, policemen and parents compliment Audio Visions with: "You keep the kids under control. You don't play music that gets them too wired up."

Cops assigned to local high schools say, "Wow, it makes our job so much easier when Audio Visions does our dances."

Duffin, Conover, and Harris all continue doing dances along with their spouses and Conover's 16 year old son Landon. It continues to be a family business.

"It's kept us close as a family," Craig said.