AV Directory

Periodic Audio

We focus strictly on audio products that fit in your pocket. Not a separate case, or that need to be tucked in your bag. Small enough to fit in your pocket. If you have to stop and think about bringing it with you - it's not portable. Phone, wallet, keys, IEMs.



All of the Zappiti products are designed to provide our end-user customers with convenient and intuitive access to their entire movie library collection, in stunning 4K, High Definition resolution. The award winning Zappiti devices are being successfully...


We specialized in R&D production integrated supplier in the optical fiber field. Our headquarters is located in Wuhan, China and we have developed, researched, manufactured and begun selling optical fiber cable since 2013...

Starke Sound

Starke Sound stands alone with its use of innovative technologies and superior materials. When combined these components produce an incredibly amazing sound delivering an unparalleled acoustic reproduction...


Electrocompaniet has a great deal of experience in designing and manufacturing transistor amplifiers with the highest quality possible...


Using pioneering scientific research into how people hear, the MQA team has created a technology that captures the sound of the original studio performance...

Torus Power

Torus Power isolation transformers dramatically improve the performance of all audio and video systems. Connect audio equipment to a Torus Power isolation transformer and it comes alive – with more dynamics, improved imaging...



With a history of audio innovation that began in 1925, Shure has turned a passion for making great microphones and audio electronics into an obsession. No wonder Shure continues to set the worldwide industry standard for superior microphones and audio electronics.



Edifier specializes in premium audio solutions that showcase technological innovation and design elegance. We deliver outstanding sound experience through a wide range of sound systems for personal entertainment and professional excellence.

Audio Research

Audio Research is one of the oldest continually operating manufacturers in American audio. The company was founded in 1970 in Minneapolis with one goal in mind: to advance the state-of-the-art in music reproduction. Today, Audio Research remains...



Bluedio provide professional mobile audio and communication solutions. We advocate a wonderful life experience, starts from a wireless life era.