We’re proud to be running the premier family-owned and operated special effects and custom production company in Northern Colorado. We care about this community and about helping our friends, neighbors and colleagues realize their visions. Whether for a wedding, a theatre production or concert, or a municipal event, we’re happy to be of service.


Rythm EFX Founders

Zack has been involved in technical theater since the age of eight. He was a master carpenter and lighting tech for “Open Stage Theater” one of the longest-practicing and most renowned theatrical producers in the state of Colorado. He was the youngest student ever to letter in theater at Fort Collins High and later became the instructor for the school’s technical theater certification class in 2006.

Zack has been a creative lighting designer for numerous artists including JoJo, Styx, Toby Keith, Incubus, LMFAO, Skrillex, Gym Class Heroes, Lil’ Jon & many others.

His involvement with Down for Life, an anti tobacco-organization for teens has set him apart in city based and regional volunteer work which he continues to do along with teaching weekly dance classes at a local dance studio, including showcase design of their bi-annual recital performances.

Kayzha divides her busy schedule between a full time business career, their three children and her artistic presentations & operation of the LED Video Technology. She has designed & operated the Rythm EFX LED Video System for multiple clients including Phunk ‘E’ Elements, Floorbangers, MiMOSA, G-Love & Special Sauce, The Tedeschi Trucks Band, Yonder Mountain String Band & many others. She has become a quick learn wizard at this state of the art system and puts passion into all of the designs & visual graphic designs for all of the Rythm EFX LED Wall events. Zack & Kayzha look forward to researching technical advancements for their company’s inventory, travel, and very specific visionary growth. Surrounding these values they wish to bring expansion to their existing personal team, adding advancements to innovative design concepts, and make their mark with new developments in event lighting and design.

Mitch Weiner

Event Manager and Sales

Mitch has worked in various capacities in the music industry for over 30 years. As a recording studio owner, producer and engineer in Boulder Colorado for 8 years to performing in bands as a professional drummer for over 28 years in Los Angeles, Austin Texas, Boulder Colorado and Portland Oregon. Mitch has been involved in all aspects of live performance from audio sound systems, lighting, booking agencies, talent acquisition to live video screen performance. He has also been extensively involved with producing and engineering music for film, video, advertising and CD’s. Mitch brings decades of music and film experience to RHYTHM EFX as our sales director. Since 1992, Mitch has also been a professional realtor mostly working with builders and developers creating luxury residential communities and building custom homes for hundreds of his clients. Mitch’s expertise in the music and film business will be a huge asset to our corporate, retail, concert tour/festival and special event planner clients. He currently plays in several Denver and Fort Collins bands as a drummer and electronic percussionist. Mitch’s interests also include interior design, travel, hiking, biking, art and painting.