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 Crazy Brothers Pro Audio

Crazy Brothers Pro Audio

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A Little Bit About Crazy Brothers Pro Audio

Crazy Brothers Pro Audio is a unique name for a unique combination of pro audio products. Those who do it themselves and those who do it professionally alike know that buying from Crazy Brothers Pro Audio is the sure way to save dollars. With 100% new, high quality products at the lowest prices, you’ll feel confident with your purchase. Fast delivery, straight to your door.

Crazy Brothers Pro Audio is THE authorized seller on eBay for Gemini, Cortex, and iKey brand pro audio equipment.


In the 1970’s, Gemini’s avant-garde commitment to pushing the art form of DJing to the forefront through feature-laden yet affordable products transformed the DJ’s conventional role from music manipulator to accredited artist and performer.

Embodying the complete “Evolution of the DJ”, Gemini has the proud distinction of laying the groundwork for this so-called ‘subculture’ for its evolution into a well-respected, fine-tuned musical powerhouse. Turntablists, club and mobile DJs, nightclubs, recreation facilities, contractors, hobbyists, professional installers, and designers throughout the world rely on Gemini products for dependable and affordable DJ audio equipment.

Fast forward to the present, where Gemini continues to add to its prolific contributions to the PA and DJ realm by forging ahead into the digital revolution while gracefully preserving the legacy of vinyl.


A part of GCI Technologies, Cortex is a digital audio controller company that specializes in bringing advanced technology to the DJ and professional audio community. Since debuting at the 2006 Winter NAMM tradeshow, Cortex has received rave reviews with its intelligent, patent-pending, host-controller based digital music platform.

By constantly embracing new forms of technology, Cortex strives to break open creative new possibilities to further advance and revolutionize music performance, transforming today's DJ into tomorrow's DJ. Recognizing the current need for a more efficient and versatile medium, our affordable, user-friendly products look to radically change the way music is stored, transported, and performed.

Welcome to the world of Cortex! Own it.


Our mission at iKEY-AUDIO is to enhance your experience through function and performance. We've built our business on understanding what you really want and value in a product, accompanied by a level of service unparalleled in the industry. Every iKEY-AUDIO product employs the latest advances in materials, technology and carefully considered highly functional design innovations. Each iKEY-AUDIO product is backed by the experience and commitment of engineers and professionals whose passion for excellence is matched only by their passion for using our products. Your decision to invest in an iKEY-AUDIO product reflects not only your love of music, but also your value of choice and your reluctance to compromise on the things that really matter. Owning an iKEY-AUDIO product provides you with more then a great product; it gives you membership in a community who shares your values.