How to Wire a 70 Volt Commercial Speaker Sound System

www.pureresonanceaudio.com
Generally, the sound systems you’ll find in a commercial environment like a restaurant, retail store, or school gymnasium are different from what you may be used to seeing in a home theater system.
Pure Resonance Audio 70-volt sound systems have features designed specifically for commercial applications, like priority mic ducking, paging capabilities, and built-in Bluetooth. Pure Resonance Audio sound equipment is also built for the demands of operating 24/7, 365.
Maybe you're trying to self-install a 70-volt commercial system, and you're not sure where to start. In this video, Andrew talks about the basic things to look at when going to install your system and briefly touches on how to integrate 70-volt volume controls into your system.
The first thing you will want to do when you get your speakers is to adjust the tap settings. The tap settings are essentially the floodgates of that speaker. The lower you tap it, the softer it will be; the higher you tap it, the louder it will be able to get.
You'll then need a mixer amplifier or a rack mount mixer amplifier. Attach your speaker wire to the speaker output on the back of the amplifier. The commercial-grade speaker wire should have one black and one red wire. Your positive wire is your red, and black is your negative wire. Make sure the wire is snug but not too tight.
From here, run the wire to your first speaker. Most Pure Resonance Audio speakers have a 4-terminal euro block, which makes wiring very simple.
You'll just connect your red wire to the “+” terminal and connect your black wire to the “-” terminal.
Theoretically, you have one speaker connected, so you can connect your Bluetooth device, play some music, test it out, and make sure you did everything correctly.
To wire your next speaker, simply go out of the second set of + and - terminals and run the wire to your next speaker. Continue this process until you wire your very last speaker.
The beauty about a 70-volt system is you can have as many speakers as you want, as long as your amplifier can handle it. Keep in mind that when you're adjusting your tap settings, the sum of those tap settings on all of your speakers needs to be 80% or less of your amplifier's available power. This will ensure you have enough headroom to protect your equipment.
Now, if you want to independently control a speaker's volume or group of speakers, you can integrate one or multiple 70-volt volume controls. These are like a dimmer light switch, a wall plate with a dial, but instead of controlling the lights, it controls the volume of your speakers.
Volume controls will also have 4 terminals, much like the Euro block but with an “amp in” and a “speaker out”.
Let’s say you want (2) speakers controlled by one volume control. To do this, you will still have your positive and negative connection on the back of the amp, but this time you will first connect your wires to the “amp in” on the volume control. From here, you would go from the “speaker out” and daisy chain your (2) speakers together just like we did before.
If you want to incorporate multiple volume controls, you can also daisy chain these together. Just ensure you do so through the “amp in” terminals”.
Just like with your speakers, with volume controls, you can theoretically have as many as you want. We've had scenarios where there's a dental clinic that wants ones in every individual patient room, and you can do that.
It is important to note that volume controls also have a power rating. So you have to ensure that your amplifier can handle the watts you're putting through it with that 20% headroom.
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Featured In this video:
Pure Resonance Audio MA30BT 30W Commercial Mixer Amplifier
www.pureresonanceaudio.com/collections/mixer-amplifiers/products/pure-resonance-audio-ma30bt-7-channel-30w-commercial-mixer-amplifier
Pure Resonance Audio RMA120BT 120W Rack Mount Mixer Amplifier
www.pureresonanceaudio.com/collections/rack-mount-amplifiers/products/pure-resonance-audio-rma120bt-5-channel-120w-commercial-rack-mount-70-volt-mixer-amplifier
Pure Resonance Audio C3 3" Micro Ceiling Mount Speaker www.pureresonanceaudio.com/collections/ceiling-speaker/products/pure-resonance-audio-c3-3-micro-in-ceiling-loudspeaker
Pure Resonance Audio S3 3" Micro Surface Mount Speakers
www.pureresonanceaudio.com/collections/surface-mount/products/pure-resonance-audio-s3-3-micro-surface-mount-loudspeaker
Pure Resonance Audio PD4 4" Hanging Pendant Speaker
www.pureresonanceaudio.com/collections/pendant-speakers/products/pure-resonance-audio-pd4-4-pendant-mount-speaker

[@gabrielnagy4039]

Hi there and thank you for your videos, my question is, I have 10 toa pc-1869 ceiling speakers and I want to install them in the patio ceiling, now I have a Sony STR-DG510, can I wire them to this avr or do I need a 70/100V amplifier. Thank you for your time .

[@pureresonanceaudio]

Hi Gabriel, I do not see that the TOA PC-1869 speakers have an 8-ohm bypass, so you would need to use a 70-volt amplifier. Unfortunately, the Sony STR-DG510 receiver does not have 70-volt outputs, so you'll need to source a 70-volt amplifier. We offer several 70V mixer amplifier options that might work with your setup. Let us know if we can help, email [e-mail], call [phone], or visit www.pureresonanceaudio.com

[@jonathankeenan80]

Do you need to add the wattage of the volume controls to the amp just like the speakers?

[@pureresonanceaudio]

Hi Jonathan, Great question! No, the volume control only needs enough watts to handle the number of speakers you are going to connect to it. For example, if you wanted to control 4 speakers tapped at 5 watts each (total of 20 watts) you could use our 50-watt volume control. However, if you had 12 speakers at 5 watts (total of 60 watts) you would need our 100-watt volume control. You can check out our options here: www.pureresonanceaudio.com/collections/volume-controls

[@linobugarin-em6pt]

What is the requirement on the speaker i will use, do i need to put 70v matching transformer for 10watts speaker in parallel connection?

[@pureresonanceaudio]

Most 70V speakers come with a built-in transformer, allowing you to select the appropriate tap setting for your needs. You’ll usually find a dial or a series of color-coded wire leads for this purpose. If you have a traditional 8-ohm speaker without a built-in transformer, you can add a 70V matching transformer. However, it’s recommended to have a trained professional or electrician handle the installation to ensure everything is set up correctly and safely.

[@boyseverino528]

If I had 6 volume controls Do I daisy chain them first?

[@pureresonanceaudio]

Hi there, Yes you would need to daisy chain your volume controls first.