The coupling amplifier I70 is used to extend an Integrator mixing system with additional frames.
The number of input channels inside of the Integrator Main Frame is limited to 8 + 1. Besides the master unit that integrates an additional stereo input, it is possible to install 8 channel modules. To build up larger systems it is possible to connect several frames to the main frame. The amount of coupled frames is not really limited. As a standard, an expansion input port is part of the master modules. Mainframe and extension frames are totally identical, but instead of the master module every extension frame must have a couple amplifier installed. As the size of the I70 is 0.5 slots, 9 fader modules can be installed.
The coupling amplifier contains master amplifiers for all existing bus rails and additional logic interfaces to connect the control lines. This extensive technique makes it possible to connect an unlimited amount of single frames without the common known problems like hum and noise. As the sensitive zero ohm bus rails are not directly connected to another frame and the connections are balanced, a trouble free expansion of multiple frames is possible also with longer cables. The internal very low noise amplifiers maintain an outstanding noise performance also with a large amount of frames.
Every coupling amplifier has an additional input for the connection of the next frame. This principle allows building up larger mixing systems step by step. As all the frames are identically it is also possible to use a frame as a small portable mixer for a live recording and connect the same later to other frames to add more channels.
Special cables for the coupling of the frames are available in different versions.