Electro-Voice 15716 16W Speaker Transformer for 25/70.7V Line, 0.5dB Insertion Loss, 50H-15kHz Frequency Response, 8 Ohms Impedance

The Electro-Voice 15716 16W Speaker Transformer for 25/70.7V Line is designed for use in distributed sound systems. In installations where loudspeakers are positioned some distance from the amplifier, more efficiency and less loss may be obtained when a high-impedance transmission line or 70.7 V constant voltage line is used. With the high-impedance distribution system, line matching transformers are necessary to match the impedance of the loudspeaker to the impedance of the line. The constant voltage line provides a simple means of matching a number of loudspeakers to an amplifier. The 70.7 V Line Transformer is designed to be the most efficient transfer of power from the line to the loudspeaker.

Primary and secondary windings are electrically isolated and provide a balanced line to the load. At full rated power output, low insertion loss, low distortion and high efficiency are maintained throughout the frequency range. The 70.7 V line matching transformers with four selectable power taps. Selectable line loss correction taps are provided to compensate line resistance, allowing significant savings in wire gauge.

Primary taps of the line matching transformers are identified in watts for amplifier connections, with color coded lead wires. The 8-ohm secondary taps are 0.25-inch blade type quick-connect wire terminals, allowing either wrap-and-solder connections or crimp type quick-connect wire terminals for convenience of installation.