Crown Audio TP-170V Constant Voltage Transformer Panel, 20Hz to 20kHz Frequency Response

The Crown Audio TP-170V is a rack mountable panel that contains four autoformers that provide impedance matching between amplifier outputs and "constant voltage" loudspeakers. Amplifiers that do not have direct 70V or 100V output capability can now drive distributed speaker systems that operate at those voltages. Constructed from steel, the TP-170V is hinged on one side for easy access to the internal components.