This 4 channels 100 V transformer is designed for fixed installations. It is composed of four transformers that make possible the use of 4 ohm impedance amplifiers in 100 V Line installations.
D 4T is an interesting solution for installations that use multi-channel, low-impedance power amplifiers. These installations usually have many zones, each one with a few number of speakers. Nevertheless, biggest zones like hallways usually require a larger number of speakers. Thanks to D 4T, it is now possible to transform up to four channels into high-impedance lines, in order to drive their respective speaker system with much lower current than is required for a low-impedance system. As a consequence, a larger number of speakers can be connected to each power amplifier output.