70 Volt Speaker Transformer Wiring Diagram

May 3 2010 1 hello i m new at this forum i recently took over a 70 volt installation i have been.

70 volt speaker transformer wiring diagram. 70v systems use transformers on the speakers that. Start date may 3 2010. May 3 2010 2 0 18 510 0. Speaker layout wiring methods and phasing are the same for either technology and are covered on pages 70 76.

These taps are used to define the amount of power going to each speaker. 70 volt speaker wiring diagram. Previous next sort by votes. If you try and buy a high quality high power 70 volt transformer so if you can find one you are going to spend a bunch of cash.

5w 2w 1w 5w 25w com 5w 2w 1w 5w 25w com 5w 2w 1w 5w 25w com amplifier 70v com to more. Using 70 volt audio transformers for impedance matching tube radios. Central amplified systems pages 64 67 self amplified systems pages 68 69 power lost in wires watts resistance. 100v and 140v systems are often used around sports arenas golf courses amusement parks etc where the speakers are very widespread higher volume levels are needed and.

You ll note that the above schematic shows colored taps on t transformer that is associated with each speaker. So the 70 volt distributed speaker systems are mostly confined to low audio quality applications such as background music or paging. Welcome to the 70 volt wiring tutorial from skywalker. Wiring a 70 volt audio system duration.

The key is that the maximum output voltage is 70 7 volts regardless of the power capability of the amplifier. Audio impedance meter testing 70 100 volt speakers duration. No changes to the power taps on the speaker transformers are required. As shown it is easy to add the individual speaker watts together.

A new box speaker can be wired at 10 watts 70 volt this allows it to be louder than any of the small church speakers since the creche area has much more ambient noise levels. This quality dual voltage transformer equipped with connections for 70 7 volt and 25 volt line applications. You to connect to the 70 volt signal line and then connect the other side of the transformer to the speaker. No wiring changes to the speaker circuits are required.

The pure resonance audio tm4 dual voltage transformer adapts conventional 8 ohm speakers for use with multi speaker 70 volt commercial distributed sound systems. A 25v output could be used where fewer speakers are to be used and the runs of wire are not extremely long such as in a doctor s office.