i think it would be better if you showed the back of the unit while you are discussing wiring for a visual. It would make the concept more clearer for thosse of us who are learning for the first time. Thnaks
Connecting a 70V speaker to a regular power amp is not recommended unless the speaker has a low impedance bypass switch, usually set at 8 or 16 ohms. Without this switch, the mismatch in impedance can damage your equipment or affect sound quality negatively.
I have watched a lot of your videos and called in recently but did not get my question answered. Do the dynamic mics need any type of pre amp to get the gain up. I have wired many 70 volt sound systems and input volumes are great but you have to max out volume to get microphones to provide a good output volume. What can I do to improve this the output on the microphones. By the way, not using this only for announcements. It is used for live audiences similar to a church setting. It would be great to see more video content about the microphone set ups on 70 volt systems. Thank you
Thank you for your comment and for watching our videos! Most 70-volt amplifiers do not require a separate preamp for dynamic microphones. However, it’s essential to ensure that the input on your mixer or amplifier is set to "mic level" rather than "line level," as this setting significantly impacts microphone sensitivity. If you’re still experiencing low output levels despite these settings, using an external preamp can help boost the microphone signal. I appreciate your suggestion for more content on microphone setups for 70-volt systems. We’ll certainly consider creating videos to cover this topic in more depth. Thank you for your support and feedback!
Hi there, You can find graphics for the wiring here: www.proacousticsusa.com/blog/post/your-70v-speaker-system-wiring-diagram-and-installation-guide/ Let us know if you have any other questions.
Hi Anthony, There are several ways to go about this. It would depend on your needs and objectives. Please get in touch with one of our sales engineers to discuss your application and distill this down further for you. You can call 888-256-4112 or email sales@proacoustics.com.
If you have a standard 8/4 ohm amplifier but have 70V ceiling speakers, can you bypass the transformer or remove it and then connect it up like a normal speaker system?
Hi Logan, Yes, most 70 Volt speakers have an 8 Ohm bypass mode on the transformer that would allow you to use them with an 8/4 ohm amplifier. Just keep in mind that you won't be able to run the speakers in series as shown in this video but will need to run them each separately to the amp.
Hi Kevin, No, most 70 volt distributed systems are mono, where the left and right inputs are summed together. This means that every speaker will get 100% of the musical content. Mono is actually more beneficial in distributed audio systems because it ensures that all listeners are hearing the same musical information. Mono doesn't necessarily sound better/worse than stereo - it just means that all the information feeds to all the speakers. Many classic rock albums were recorded in mono originally but remastered in stereo later on. In some cases, drums/vocals/other instrument were hard panned to one side or the other. In a distributed 70 volt system, that could mean that a listener at a retail store or restaurant may not hear any drums/vocals until they walk to another speaker coverage area. Summing to mono in a 70 volt system resolves that issue.
Hi there, Thanks for watching! Yes, most 70V speakers will have a 100V setting listed for them. However, we’d recommend that you refer to the manufacturer’s datasheet to confirm this before installing. Good luck with your project!
Hi there! You can check out this blog for more information and some illustrations: www.proacousticsusa.com/blog/post/your-70v-speaker-system-wiring-diagram-and-installation-guide/
Hi looking to add speakers to a jukebox. It has 70v stereo speakers . The amp is a tube amp . What is the easiest way to add additional speakers to another room with volume control. Does the tube amp always need load ? Can I isolate rooms with speaker switches
Hi there! If you have a 70 volt amplifier, you can add 70 volt volume controls in line to attenuate volume in those other areas. See our video on 70 volt volume controls. ua-cam.com/video/6sCY8W0wMoc/v-deo.html I would not recommend using speaker switches, but rather in-wall volume controls to adjust speakers or group of speakers. Make sure to pair 70 volt speakers and 70 volt volume controls with a 70 volt amplifier and to keep your speaker tap settings at 80% or lower of the amplifier's maximum wattage to allow for 20% headroom. www.proacousticsusa.com/commercial-sound-equipment/commercial-sound-accessories/volume-controls/70-volt-volume-controls.html I hope this helps but feel free to request a quote from our website, email sales@proacoustics.com, or call us directly at (888) 256-4112
Hi There! Thanks for reaching out. Can you give us a call (888) 256-4112 or email sales@proacoustics.com to talk directly to a sales engineer? They'd like to ask you a few questions to make sure they provide the best recommendation for you.
B H, You can certainly use a Sonos Connect as a source with a 70-volt mixer/amp. As far as using 2 Sonos Connects, if you have a multi-zone mixer/amp or multiple mixer/amps, that would be a simple way to control a 2-zone system. If you have a single zone mixer/amp, you may not need a second Sonos Connect, although there may be inputs available for it, depending on your mixer/amp. Let us know if we can answer any more questions! Pro Acoustics
I have 2 questions not sure what video to post it on. I did watch this video and answered my first question. The regular 8ohm is meant for just 1 speaker. If you have multiple speaker in the ceiling you need to use 70v. The confusion comes from speakers and amps that have both types inputs/outputs, but you need 70v for multiple speakers. I was wondering if you could hook up 10 - 8ohm speakers in a private zone. I planned to do this 70v speakers from your store, but just curious about 8ohm option. Also on the back of different amps I see a EMC input. Is this a audio override or how does this work? Also seems like no/nc connection to do with fire alarm?
Hi Robert, Unfortunately, you cannot hook up 10 8-ohm speakers on one zone due to the impedance load being too low for almost any amplifier when wired in parallel. That is correct, the EMC input is a top priority input on the mixer/amp and takes precedent over other inputs. Hope this helps!
Hi Andrés, 70-volt speakers are conventionally meant to be used in commercial business applications. If you have a 70-volt speaker that has a low impedance bypass (a 4 ohm or 8 ohm transformer setting) and that setting is within the accepted impedance of your home receiver, then it may work fine. However, keep in mind that it's also possible for commercial speakers to have a wider coverage pattern or deeper mounting depth than speakers designed specifically for home use. It's a good rule of thumb to keep home speakers in a home environment and commercial speakers in a commercial business application. Thanks for watching and I hope this is helpful.
Great question! We totally understand the importance of seeing the wiring setup. We actually redid this video recently, specifically adding close-ups of the back connections and step-by-step wiring instructions. You can check it out here: ua-cam.com/video/JM6507Q0CIk/v-deo.htmlsi=FpBF_aYmB8b9zAqE&t=115 Thanks for watching and sharing your feedback!
Hi Michael, Thanks for watching! Yes, we’ve designed and implemented IP paging systems via Dante or CobraNet with great results! Let us know if you have any more questions we can help with!
Excellent explanation of 70V commercial audio! Can you also explore paging/telephony? Our store's amp has a telephone in and and a small threshold knob next to it. I'd like to learn how to set up basic phone paging. Thanks!
Hi there! Thanks so much for watching and we're so glad you found it helpful. We'll definitely put paging on the list for a video explanation. Please don't hesitate to reach out if we can assist you with any other audio needs!
I recently found and won an eBay auction that was a recycled rack system for a rather large business. Of course the amps said 70 volt and I was ignorant to the meaning of this even though I've been in home theater and car audio for several decades. This video definitely explained it though. What I would still like to know is can I use these four, 20x2 (@8ohms) amplifiers like any other 2 channel audio amplifiers with say a set of small book shelf speakers? These amps are Class D and only need 1.5 amps to make full power. Please let me know as I would simply like to put one of these in each of our bedrooms and kitchen. Thanks again!!!!!
Hi Justin, Thanks for watching and we're so glad you found it helpful. If your new amplifiers have an 8-ohm low impedance output (which bypasses the 70-volt transformer) and your speakers’ load on each channel falls above the minimum impedance range of each amp channel, then the system will work fine. Hope this helps! Feel free to reach out directly at sales@proacoucstics.com, visit our site www.proacousticsusa.com or call (888) 256-4112.
Very informative! I'm dealing with an existing 70v setup, that had 8 speakers. We would like to remove 4 of them at the end of the chain. Can I simply disconnect them? or will I need to adjust the TAPs on the remaining speakers? Thank you.
Art Prep, Thanks so much for watching our video - we are so glad you found it helpful. To answer your question, yes, you can certainly just remove the last speakers from the chain. Make sure to always have the system powered off when disconnecting speakers. You only have to adjust the taps if you would like for your remaining speakers to be louder, in which case you'll want to always leave 20% headroom between the sum of your 70-volt tap settings and the max capacity of the amplifier. Let us know if we can help with anything else! Pro Acoustics
I'm sorry to hear that you didn't find the video helpful. This video takes an educational approach to the topic rather than showing the actual wire hookup. It talks the viewer through the flow of the connections, which can be a helpful way to understand the process before attempting it. However, we understand that this approach didn't suit your needs. We appreciate your feedback and will keep it in mind for future improvements.
i think it would be better if you showed the back of the unit while you are discussing wiring for a visual. It would make the concept more clearer for thosse of us who are learning for the first time. Thnaks
Quick question, can you connect to 70v speaker to regular power amp?
Connecting a 70V speaker to a regular power amp is not recommended unless the speaker has a low impedance bypass switch, usually set at 8 or 16 ohms. Without this switch, the mismatch in impedance can damage your equipment or affect sound quality negatively.
@@ProAcoustics oh ok thanks
I have watched a lot of your videos and called in recently but did not get my question answered. Do the dynamic mics need any type of pre amp to get the gain up. I have wired many 70 volt sound systems and input volumes are great but you have to max out volume to get microphones to provide a good output volume. What can I do to improve this the output on the microphones. By the way, not using this only for announcements. It is used for live audiences similar to a church setting. It would be great to see more video content about the microphone set ups on 70 volt systems. Thank you
Thank you for your comment and for watching our videos! Most 70-volt amplifiers do not require a separate preamp for dynamic microphones. However, it’s essential to ensure that the input on your mixer or amplifier is set to "mic level" rather than "line level," as this setting significantly impacts microphone sensitivity. If you’re still experiencing low output levels despite these settings, using an external preamp can help boost the microphone signal.
I appreciate your suggestion for more content on microphone setups for 70-volt systems. We’ll certainly consider creating videos to cover this topic in more depth. Thank you for your support and feedback!
Colton is the ultimate audio hype man!
Coltin.
I have a system with 4 attenuator knobs in parallel - what would change with the inputs?!
Hi Luke, Each attenuator knob should change the volume of that input/zone.
Excellent explanation Fellas! Thank you
Do I need a specific amp with specs for 70v or could I use an amp as long as it has enough watts?
Hi Jesiah, You should use a properly rated 70-volt amplifier to power 70V speakers.
How did you actually wire it? Can you show us the back of the amp and how the wiring is done? Thanks. 😊
Hi there, You can find graphics for the wiring here: www.proacousticsusa.com/blog/post/your-70v-speaker-system-wiring-diagram-and-installation-guide/
Let us know if you have any other questions.
How much power will I need for a new audio/video receiver for six 8 ohm speakers?
Hi Anthony, There are several ways to go about this. It would depend on your needs and objectives. Please get in touch with one of our sales engineers to discuss your application and distill this down further for you. You can call 888-256-4112 or email sales@proacoustics.com.
How to wire that silver volume controller of yours?
Hi there, You can check out this video for an explanation of how to wire your volume control: ua-cam.com/video/6sCY8W0wMoc/v-deo.html
If you have a standard 8/4 ohm amplifier but have 70V ceiling speakers, can you bypass the transformer or remove it and then connect it up like a normal speaker system?
Hi Logan,
Yes, most 70 Volt speakers have an 8 Ohm bypass mode on the transformer that would allow you to use them with an 8/4 ohm amplifier. Just keep in mind that you won't be able to run the speakers in series as shown in this video but will need to run them each separately to the amp.
@@ProAcoustics thank you for the feedback. I thought that was the case but wanted to double check.
Maybe 2 or 4 but no more than that.
Thanks guys. I'm assuming each amp plays one channel and I'm looking at stereo left and right ?
Hi Kevin,
No, most 70 volt distributed systems are mono, where the left and right inputs are summed together. This means that every speaker will get 100% of the musical content. Mono is actually more beneficial in distributed audio systems because it ensures that all listeners are hearing the same musical information. Mono doesn't necessarily sound better/worse than stereo - it just means that all the information feeds to all the speakers.
Many classic rock albums were recorded in mono originally but remastered in stereo later on. In some cases, drums/vocals/other instrument were hard panned to one side or the other. In a distributed 70 volt system, that could mean that a listener at a retail store or restaurant may not hear any drums/vocals until they walk to another speaker coverage area. Summing to mono in a 70 volt system resolves that issue.
so if I have an amplifier (100V) I can connect 2 speakers (70V for each) to it?
Hi there, Thanks for watching! Yes, most 70V speakers will have a 100V setting listed for them. However, we’d recommend that you refer to the manufacturer’s datasheet to confirm this before installing.
Good luck with your project!
What system do u think I can used for 30w speaker that can take 38 speakers
Hi there! You can check out this blog for more information and some illustrations: www.proacousticsusa.com/blog/post/your-70v-speaker-system-wiring-diagram-and-installation-guide/
Hi looking to add speakers to a jukebox. It has 70v stereo speakers . The amp is a tube amp . What is the easiest way to add additional speakers to another room with volume control.
Does the tube amp always need load ?
Can I isolate rooms with speaker switches
Hi there! If you have a 70 volt amplifier, you can add 70 volt volume controls in line to attenuate volume in those other areas. See our video on 70 volt volume controls. ua-cam.com/video/6sCY8W0wMoc/v-deo.html
I would not recommend using speaker switches, but rather in-wall volume controls to adjust speakers or group of speakers. Make sure to pair 70 volt speakers and 70 volt volume controls with a 70 volt amplifier and to keep your speaker tap settings at 80% or lower of the amplifier's maximum wattage to allow for 20% headroom. www.proacousticsusa.com/commercial-sound-equipment/commercial-sound-accessories/volume-controls/70-volt-volume-controls.html
I hope this helps but feel free to request a quote from our website, email sales@proacoustics.com, or call us directly at (888) 256-4112
I need a 25V 2 zone speaker selector, can anyone recommend one? Would using a 70V selector work?
Hi There! Thanks for reaching out.
Can you give us a call (888) 256-4112 or email sales@proacoustics.com to talk directly to a sales engineer? They'd like to ask you a few questions to make sure they provide the best recommendation for you.
Can I use this with two separate Sonos connects as my sources?
B H,
You can certainly use a Sonos Connect as a source with a 70-volt mixer/amp. As far as using 2 Sonos Connects, if you have a multi-zone mixer/amp or multiple mixer/amps, that would be a simple way to control a 2-zone system. If you have a single zone mixer/amp, you may not need a second Sonos Connect, although there may be inputs available for it, depending on your mixer/amp. Let us know if we can answer any more questions!
Pro Acoustics
I have 2 questions not sure what video to post it on. I did watch this video and answered my first question. The regular 8ohm is meant for just 1 speaker. If you have multiple speaker in the ceiling you need to use 70v. The confusion comes from speakers and amps that have both types inputs/outputs, but you need 70v for multiple speakers. I was wondering if you could hook up 10 - 8ohm speakers in a private zone. I planned to do this 70v speakers from your store, but just curious about 8ohm option. Also on the back of different amps I see a EMC input. Is this a audio override or how does this work? Also seems like no/nc connection to do with fire alarm?
Hi Robert,
Unfortunately, you cannot hook up 10 8-ohm speakers on one zone due to the impedance load being too low for almost any amplifier when wired in parallel.
That is correct, the EMC input is a top priority input on the mixer/amp and takes precedent over other inputs.
Hope this helps!
Hi. Can i connect 70 V speakers to a home theater? Just change my old HT speakers for new 70 V speakers?
Hi Andrés, 70-volt speakers are conventionally meant to be used in commercial business applications. If you have a 70-volt speaker that has a low impedance bypass (a 4 ohm or 8 ohm transformer setting) and that setting is within the accepted impedance of your home receiver, then it may work fine.
However, keep in mind that it's also possible for commercial speakers to have a wider coverage pattern or deeper mounting depth than speakers designed specifically for home use. It's a good rule of thumb to keep home speakers in a home environment and commercial speakers in a commercial business application.
Thanks for watching and I hope this is helpful.
Why did't you show the backs of the equipment, so that we can get an idea of wiring.
Great question! We totally understand the importance of seeing the wiring setup. We actually redid this video recently, specifically adding close-ups of the back connections and step-by-step wiring instructions. You can check it out here: ua-cam.com/video/JM6507Q0CIk/v-deo.htmlsi=FpBF_aYmB8b9zAqE&t=115 Thanks for watching and sharing your feedback!
Have you installed self amplified systems or IP paging systems? Do they work well?
Hi Michael,
Thanks for watching! Yes, we’ve designed and implemented IP paging systems via Dante or CobraNet with great results!
Let us know if you have any more questions we can help with!
Super helpful and informative thank you
We're glad it was helpful!
super useful - thank you!
Glad it was helpful!
Excellent explanation of 70V commercial audio! Can you also explore paging/telephony? Our store's amp has a telephone in and and a small threshold knob next to it. I'd like to learn how to set up basic phone paging. Thanks!
Hi there! Thanks so much for watching and we're so glad you found it helpful. We'll definitely put paging on the list for a video explanation. Please don't hesitate to reach out if we can assist you with any other audio needs!
Nice job guys.. simple but took away a bit of mystery..
Thanks so much for taking the time to watch and comment. We really appreciate your feedback!
I recently found and won an eBay auction that was a recycled rack system for a rather large business. Of course the amps said 70 volt and I was ignorant to the meaning of this even though I've been in home theater and car audio for several decades.
This video definitely explained it though. What I would still like to know is can I use these four, 20x2 (@8ohms) amplifiers like any other 2 channel audio amplifiers with say a set of small book shelf speakers? These amps are Class D and only need 1.5 amps to make full power. Please let me know as I would simply like to put one of these in each of our bedrooms and kitchen.
Thanks again!!!!!
Hi Justin,
Thanks for watching and we're so glad you found it helpful. If your new amplifiers have an 8-ohm low impedance output (which bypasses the 70-volt transformer) and your speakers’ load on each channel falls above the minimum impedance range of each amp channel, then the system will work fine.
Hope this helps! Feel free to reach out directly at sales@proacoucstics.com, visit our site www.proacousticsusa.com or call (888) 256-4112.
it would be much better to turn the amp to the other side to show the connections !!
Thanks for the tip! We always appreciate feedback on how we can do better.
Great info.
Hi Sandy, Thanks for watching! We're glad you found it helpful!
Thankyiu bery much guyzz it was soo helpful😍
Hi Ameen, Thank you for watching! Love hearing this! We're so glad you found it helpful.
Very informative!
I'm dealing with an existing 70v setup, that had 8 speakers. We would like to remove 4 of them at the end of the chain.
Can I simply disconnect them? or will I need to adjust the TAPs on the remaining speakers?
Thank you.
Art Prep,
Thanks so much for watching our video - we are so glad you found it helpful. To answer your question, yes, you can certainly just remove the last speakers from the chain. Make sure to always have the system powered off when disconnecting speakers. You only have to adjust the taps if you would like for your remaining speakers to be louder, in which case you'll want to always leave 20% headroom between the sum of your 70-volt tap settings and the max capacity of the amplifier. Let us know if we can help with anything else!
Pro Acoustics
Seven minutes into the 9 minute video and you haven't shown me one wire connection yet. WHAAT!! I give up. I'll watch somebody else.
I'm sorry to hear that you didn't find the video helpful. This video takes an educational approach to the topic rather than showing the actual wire hookup. It talks the viewer through the flow of the connections, which can be a helpful way to understand the process before attempting it. However, we understand that this approach didn't suit your needs. We appreciate your feedback and will keep it in mind for future improvements.
You wire them in parallel. Perhaps fix your title.
Hi there, You are correct. We've updated the video title. Thanks so much!