xp4l is a fully integrated solution designed to expand with simplicity Ableton Live potential toward the field of spatial sound performance. The goal of xp4l is to provide Ableton users with a flexible and simplified environment to create 3d audio projects. It is made of a free m4l (max-for-live) suit consisting of 5 devices and a standalone application that users have to purchase. Given the challenge of developing such features in Ableton Live, it was nonetheless important to try to retain as much as possible the spirit of what makes its workflow unique, a balance in the direction of artistic creativity and live spontaneity, which was considered to be deployed for 3d-audio design. The project is partly based on Ircam Spat library, a max-msp object library unique for its ability to simulate virtual acoustic spaces. Therefore, xp4l is intended for past, new or future users of the Spat library. Although possible before xp4l existed, accessing the library from Ableton Live in the max-for-live environment through a flexible format by users was made complex, and this fact deprived the majority of creators from taking advantage of this incredible tool. xp4l provides Ableton users with a solution that will alleviate this problem.