What is a 70 volt audio system?
70v system is a constant voltage distributed sound system, often used in commercial settings due to the ease of installation and design. Under the traditional loudspeaker system design, impedance load has to match the operable range of the amplifier.
What is the most common type of amplifier used in commercial AV background music systems?
100v line is the most common distributed sound system for commercial applications, particularly public address (voice) and background music systems where long distance transmission and large numbers of low level output loudspeakers are the common characteristics.
How many watts is 70 volts?
Equivalent watts and volts for various current ratings
| Power | Voltage | Current |
|---|---|---|
| 70 Watts | 70 Volts | 1 Amps |
| 70 Watts | 35 Volts | 2 Amps |
| 70 Watts | 23.333 Volts | 3 Amps |
| 70 Watts | 17.5 Volts | 4 Amps |
How many speakers can be on a 70V system?
For example, with a 180 watt / 70 volt amplifier, you can install speakers that total close to 150 watts. It does not matter if it is 10 speakers that are 15 watts each or 25 speakers that are tapped at 5 watts each.
What are the 2 sets of wires on a 70 volt transformer used for when wiring a speaker to a 70 volt amplifier system?
Attached to each speaker in a 70V system is another transformer that changes the power back to “lower voltage/higher current” so that it can drive the 8-ohm speaker. These transformers usually have two output taps, one for 8-ohm speakers, and one for 4-ohm speakers.
How many volts is 70 watts?
Equivalent watts and volts for various current ratings
| Power | Voltage | Current |
|---|---|---|
| 70 Watts | 35 Volts | 2 Amps |
| 70 Watts | 23.333 Volts | 3 Amps |
| 70 Watts | 17.5 Volts | 4 Amps |
| 75 Watts | 75 Volts | 1 Amps |
What are the basic components of a 70 volt system?
The basic components of a 70-volt system are (1) an audio source, (2) a 70 volt amplifier, (Never hook up 70 volt speakers to a residential 8 ohm amplifier. Stuff could blow up!) (3) speaker wire (usually 16/2 gauge for runs up to 1,000 feet) and (4) speakers with transformers capable of receiving a 70 volt signal.
What is a 70-volt system for speakers?
A 70-volt system allows you to run more speakers off a single amplifier. A 70-volt system plays in mono, not stereo, so speaker placement is not as critical. A 70-volt system allows you to daisy chain speakers together, running the wire from one speaker to the next as opposed to home runs back to the amplifier for each 8-ohm speaker.
What are the advantages of a 70-volt system?
1) A 70-volt system allows you to use multiple speakers without worrying about impedance issues, which can overload and damage an 8-ohm amplifier. 2) A 70-volt system allows you to run more speakers off a single amplifier. 3) A 70-volt system plays in mono, not stereo, so speaker placement is not as critical.
What is a 70 V system?
The 70 V system is just a means of signal distribution. It has nothing to do with the type of loudspeaker used. While 70 V distribution works well for ceiling loudspeakers, the amplifier doesn’t know or care about “what” or “where” with regard to loudspeakers.