All You Need to Know About 70V Volume Controls on Pro Acoustics Tech Talk Episode 20

On this episode of Pro Acoustics Tech Talk, Nathan and Coltin are diving deep into everything you need to know about remote 70V wall mount speaker attenuators/volume controls - What is a volume control, how volume control works, how 70-volt volume attenuators are different, how to wire a 70v volume control, controlling them, and using them to meet your sound system needs.

Products shown in this video:
Atlas Sound AT100-PA Deluxe Priority Plate Mounted Attenuator (100W)

Atlas Sound AT100D Decora Plate Mounted Attenuator (100W)

Lowell 50LVC Volume Control

Lowell 100LVC Volume Control

Shop all 70 Volt Volume Controls

[arikschoessow]

Great video.
I am building a massage clinic with three rooms and a main reception area. One speaker, and volume control per room. Multiple speakers in the reception area. I have my contractor doing other electrical work and am going to propose this method to him for install speakers. Is this something an electrician should be able to easily comprehend and carry out? It seems rather straightforward with the right equipment.

I would just want to make sure I have the right speakers, amp, knobs, and of course wiring.

Thanks!

[sharkalay]

What if total wattage of speakers is bigger than volume control wattage. Does it effect on original sound level of amplifier?

[ajembafabian]

Hi I have two questions 1 how do I also connect sub woofers on one zone of that regulator or volume switch. 2 how can I run it that one zone can be reduced from other zones and use it for my self example if I want to use the speakers on zone 3 for myself completely and I switched it of from the amplifier being the source and play music with my phone later can switch on when am done

[PMantle]

Why aren't there volume controls with two knobs for 2 sets of speakers? I would love to have 4 speakers on my patio and control each pair.

[alexrivas]

Does adding a volume control work with 5.1 surround? I have 5 speakers and 2 subs in my cieling. If I wire to the volume control, than to my AV receiver, will I lose the surround sound?

[alansy]

Very well explained thanks, but how about if your amplifier has a zoning volume control lets say it has 5 volumes and the output of the amp has an output of 70v, 100v, and then the additional common outs and zone 1, zone 2, zone 3, zone 4, zone 5 can i also daisy chain on zones output?

[HugoBoss-tdgq]

Do you need have a mixer or are you just okay by putting amp to volume control ?

[arnelrebenito]

is there a voltage drop in the system? speakers in DC chain?

[mukidox]

one question I have 100W amp and 8 speakers 10W does volume control draw aditional power from amp can I put 3 30w controlers to make 3 zones

[TheKMZ]

Do you always use volume controls in your 70v applications? Or, do you sometimes not use volume controls, and instead try to limit the normal listening by using a lower watt tap in certain areas? In other words, is a lower watt speaker tap ever the answer instead of using a volume control?

[jayjee]

Hi guys, thanks for you video, I have a question, the 70v system is nice but does it need to be connected to a 70v output amplifier ? Can this be connected to a regular amplifier with 8ohms outputs ? If not, can I put in reverse mode, a transformer (8ohms to 70v) by connecting the 8ohms to the amp output (making sure i'm not exceeding the power of the transformer) and the 70v (usually the primary) to the 70v line ? If yes, what would be the considerations I need to know ?

[LFeezyTV]

In regards to you mentioning that there are transformers on the back of 70V volume controls, you are saying that the electrical voltage matters. That being said, are you able to use an 8 ohm volume control on a 70V system?

[Sami-zznp]

Hello, Can I use a 1 channel 70v amp with 4 speakers connected but use two different volume controls for each set of speakers, or will that require a 2 channel amp?

[williamgates]

Nice gentlemen. I will be buying from you

[jonathankeenan]

Do you need any license to install a 70 volt system for a friend or college that wants you to install for them? I Have a great knowledge of audio, but I don't know if I need a license of any sort.

[guymardanglade]

I have a TOA DA 250H THE INPOUT IS 3 Wire how can i connect a audio device to it

[mikunjrathwa]

Do we have to compromise in terms of audio quality if we use it

[ironkunk]

instead of using the attenuators, can i connect an output distribution splitter between the amp and the speakers? Behringer DS2800?

[bmwiyu]

Hi I have a amp 240w where I will be connecting 4 jbl 24ct speakers which I think are 30w each. I notice there's volume controls that are 20w up to 200w.which one would I need be able to fit my 240w amp? Thanks on the tap inside the grills it shows 70V: 30W, 15W, 7.5W (& 3.7W @ 70V)

[matiyosbelay]

can you tell me how to control horn speaker with volume control ?you said it is control < 100w