Each meter has a balanced, bridging, high impedance input and a rear panel zero adjustment control. A phase button for each pair of meters places left plus right on the left meter and left minus right on the right meter. Comparing these two readings gives a quick check for correct phasing. Meter lights add to the usefulness of this handy unit. Whatever your application, a 4VUB or 2VUB VU meter is easy to install, easy to use and highly reliable.
Download Mechanical VU Datasheet (Adobe pdf)