Speaker Demo 1
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ddl312 & CassetteMaster 100% correct. To use the 70 volt line your PA would have an out put marked as 70V on the amplifier. This output would connect to multiple 70V transformers in parallel usually to cover a large room or several rooms and each speaker many have its own volume control.
AllAmericanFiveRadio 3 years ago
here it
ddl312 3 years ago
The lower sound you hear from the 30 watt amp is because that amp is only putting 30 watts into 8 ohms , where the 100 watt pa amp is putting 100 watts into 1000's of ohms so you could have tons of speakers on one line, also known as a 100 volt or 70 volt line. the transformer is made to lower the 1000's of ohms to 8 ohms so the speakers will be able to put out a good clean sound. If you where to give the transformer 8 ohms it would lower the ohms and wattage so much you would not be able to ...
ddl312 3 years ago
I think the reason is the difference between impedance. The ohms on the primary side of the transformer are much higher than the speaker itself, and the amp is probably designed for around an 8-ohm impedance.
CassetteMaster 3 years ago