RSS Reverb...

Equipped with Roland's exclusive RSS (Roland Sound Space) technology, all Atelier models provide luxurious reverb sound. From the type of venue to the wall material, various reverberation parameters can be set.

AT-900 / AT-900C / AT-800 models have a special output jack that, when connected to external speakers or a home audio system, fills the space with lush, cathedral-like ambience.