The is a 70 V, 15 W speaker line matching transformer for connecting low-impedance speakers to constant-voltage public address amplifier systems.
Highlights of the Speaker Line Matching Transformer
- Constant-voltage isolated line matching transformer
- Designed for 70.7 V public address amplifier lines
- Power taps for 5 W, 7.5 W, 10 W and 15 W
- Secondary impedance options for 4 ohms or 8 ohms
- Frequency response from 40 Hz to 20,000 Hz
- Minimum efficiency of 80%
Product details Speaker Line Matching Transformer
70V 15W Speaker Line Matching Transformer
The line matching transformer is made for constant-voltage sound distribution systems using a 70.7 V carrier line. It allows compatible low-impedance speakers to be used with public address amplifiers, making it suitable for distributed audio installations where multiple loudspeakers share one amplifier line.
With selectable primary taps at 5 W, 7.5 W, 10 W and 15 W, this transformer lets you set the power level for each connected speaker position. The secondary side supports both 4 ohm and 8 ohm loads, giving flexibility when matching common speaker impedances in an installation.
The transformer offers a frequency response of 40 Hz to 20,000 Hz and a minimum efficiency of 80%, supporting full-range voice and music transmission in PA-style systems. As an isolated line matching transformer, it is a practical audio component for adapting speakers to a constant-voltage line.
Wiring is clearly arranged with color-coded leads for the common connection, wattage taps and 4 ohm or 8 ohm secondary outputs. Mounting holes are spaced approximately 70 mm center-to-center, making installation straightforward alongside other system accessories.
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