Prism Spectra now requires Max 8 (cycling74.com) and later version to run properly. All versions are included in a common folder architecture, under the form of a Max package. To install the package, either declare the folder from the Options/ File Preferences menu in Max, or drag the entire folder into /Documents/Max 8/ Packages folder.
Please download the documentation on this web page for instructions.
First read the Readme.
This documentation describes the procedures needed to install, setup and perform the live-electronics used in the piece. Although it refers to the original Max4 version it is still valid and applies to the latest (Max 8) current version.