About ADL


Penteo transforms any stereo recording, soundtrack, DJ mix or live television broadcast into perfect 5.1 surround sound. Developed by ADL, Penteo 4 Pro is the warmest and best sounding stereo-to-surround up-mixer because only Penteo remains faithful to the original stereo mix; no artificial sound manipulation is used. The result is that the Penteo 4 Pro plug-in creates a perfect surround experience for all stereo media with zero sonic artifacts, the most crisp and discrete center-channel available and only Penteo is 100% ITU down-mix compatible to the original stereo. Through its comprehensive controls, automation settings and advanced low-frequency management, Penteo 4 Pro provides the ultimate mixer experience. Penteo has been used by major studios on hundreds of films, TV shows and music recordings and supports RTAS, VST and AU formats. Audiotech Digital Limited (ADL) specializes in the development and marketing of high-quality digital audio software applications. Contact us at


Technical Partner


Penteo is a development partner with Avid.  Avid delivers the industry’s most open, innovative and comprehensive media platform connecting content creation with collaboration, asset protection, distribution and consumption for the most listened to, most watched and most loved media in the world—from the most prestigious and award-winning feature films, music recordings, and television shows, to live concerts and news broadcasts. Industry leading solutions include Pro Tools®, Media Composer®, ISIS®, Interplay®, and Sibelius®.  

Avid’s digital audio and video solutions continue to revolutionize the art of creative storytelling, and have earned us hundreds of awards, including two Oscar® statuettes, a Grammy®, and 14 Emmys®.

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Raven MTX from Slate Pro Audio – the first ever multi-touch audio production system available exclusively through GC Pro. Slate Pro Audio is a Penteo technical partner – Penteo 4 Touch was selected to be the world’s first multi-touch plug-in optimized for the Raven MTX Surround console.

Exclusive US Distribution Partner

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Guitar Center and Guitar Center Professional (GC Pro) are the exclusive resellers for Penteo in the United States. GC Pro is the outside sales division of Guitar Center that focuses on the needs of professional recording studios, audio engineers, producers, recording and touring musicians, live sound venues, post production facilities and more. More information on GC Pro can be found by visiting

With over 250 retail stores in the United States, Guitar Center is the leading United States retailer of guitars, amplifiers, percussion, keyboards and pro-audio and recording equipment. More information on Guitar Center can be found by visiting the Company’s website at

UK Distribution Partner


Mediapros has been selected to distribute Penteo in the United Kingdom. MediaPros supply creative solutions to the broadcast, film & TV post-production, live sound, multimedia, professional music recording and video game development industries in the UK. MediaPros’ central London-based headquarters feature a state-of-the-art demo facility and purpose built studio suites that are backed up by a dedicated team that is committed customer satisfaction.

Swiss Distribution Partner


Simola Eichmann Communications GmbH (SECG) has been selected to distribute Penteo 4 Pro in Switzerland. SECG is a pro audio dealer near Zürich, Switzerland that provides turnkey solutions for professional clients in the post, broadcast, live and music studios industries. As the only Swiss Avid Audio Elite Partner licensed to carry the full line of Avid products, SECG has made some of the biggest Pro Tools installations and their clients have sold over 50 million albums produced on SECG systems.

Experience Penteo 3 Pro by requesting a Pre-Release trial today!