Galvanic isolation when testing

When testing amplifiers and DAC-s with the power supply uses galvanic isolation with the total elimination of the ground loop. The laptop is running from its own battery, and E-MU1616m connected is connected via an additional isolation transformer 220/220 or to a separate uninterrupted power source, which in turn completely disconnected from the external network.

Due to the individual power measuring complex no ground loop and completely eliminated the factor of disguise distortion due to the noise from a ground loop.