POL-DDI is a two-channel isolation tool for extreme audio signal levels. It has an enormous audio bandwidth and extreme signal symmetry, which make it ideal for high-quality measurement and transmission tasks.

With POL-DDI you have safe and reliable access to audio signals from high-performance amplifiers and 100V PA systems.

With signal voltages of 100 volts and more, these signal sources pose a deadly hazard to people and audio devices.