Terry Tew Hire Catalogue Terry Tew Hire Catalogue » New Products » ATP Audio DuckerProduct Details Additional Information Contact UsAudio ducker for control room speakers that can be triggered via contact closure, so either desk GPIO, Coms, shout system or any remote button. Can also be used with an external foot switch. Category: New ProductsManufacturer:ATPProduct Inquiry Form Your Name (required) Your Email (required) Inquiry Product Name Your Message By using this form you agree with the storage and handling of your data by this website.