RCS80-1
What is 70 Volt?
70-volt systems are the number one choice for any application where you want to install
multiple speakers. With 70 volt there are a lot of advantages over 8-ohm systems. One
of the main advantages is the simplicity of the wiring as well as how easy it is to match
up speakers with the amplier. For example, with this 60-watt /70-volt amplier, you can
install speakers that total close to 50 watts. It does not matter if it is 10 speakers that are
5 watts each or 20 speakers that are tapped at 2.5 watts each. You always want your 70-volt
amp to have at least 15 or 20% more power than the combined watts your speakers
are tapped at. When we say the word tap, what we are referring to are the selectors
that many speakers in 70 volt have on them. For example, some speakers might have
selectable options of 1.5w, 3w, 5w, 10w. What this does is limit how many watts the built-
in transformer on the speaker will allow the speaker to get from the amplier. What this
allows for is full customization of your sound for your space. In a restaurant, for example,
you can tap your dining room speakers at 5 watts, the speakers by the bar area at 10
watts, the ones in the hallway at 3 watts, and the speakers in the bathrooms at 1.5 watts.
Another great feature with 70 volt is you can mix and match any 70-volt speakers wheth-
er they are ceiling speakers, wall mounted speakers, subwoofers, etc.
70-volt systems allow you to run very long lines of speaker wire without signal loss. This
makes it ideal when running long speaker leads.
The wiring is simple. You just wire all the positive terminals of the speakers to the positive
70-volt terminals of the amplier. The negative terminals on the speaker simply get wired
to the negative terminals on the amp. You do not have to worry about impedance. The
power is constant.
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