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10 Watt Commercial 70V Mono Rotary Style In-Wall Volume Control MONO70V

Product code: OSD-MONO70-VC

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Features & Specifications

The OSD MONO70V Mono 70-Volt Volume Control provides excellent frequency response, low insertion loss and reliable performance for volume control applications in 25-volt and 70.7-volt systems. There's no stop between the maximum and off positions, which prevents switch damage. Featuring silver-plated contacts for noise-free operation and a removable terminal block, the OSD MONO70V Mono 70-Volt Volume Control comes with white or ivory plastic plates with matching skirted knobs.


Other Product Info

Decora style high-quality auto transformer series provides the advantages of excellent frequency response, low insertion loss and reliable performance for volume control application in 25 and 70.7-volt systems. Attenuation is accomplished in ten make before break steps plus positive off position. (No stop between maximum and off position to prevent switch damage). Contacts are silver


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4 Questions & 4 Answers
from Norcross, GA asked:
August 15, 2017
Is this volume control discontinued and if so what is the replacement.
1 Answer
Hi Rodney: The MONO70V has been discontinued. The MVC series has replaced these units. The Mono 70V was only rated at 10 watts limiting its application. The three new MVC series features 25, 50 and 100 watt versions. All three feature a two channel input (mono +/-) and a two channel thru-put which allows you to daisy chain multiple Volume Controls without affecting the output side of any of the Volume controls after the transformers. So you can still have a single output from your receiver and wire all your speakers and volume controls after that. I do not believe anyone else has this feature. We also just introduced a 2 zone Mono 70 Volt Speaker Selector featuring on off switch per zone, 2 MVC-100 internal Volume Control;s. It also has thru output allowing you to stack as many 2 zone speaker selectors you might need. So check them out... TL/4521
Submitted by: Customer Service - Q&A on August 15, 2017

Sam Wright
from Irvine, CA asked:
August 11, 2014
Does this have a smooth rotation or in steps? For ADA and handicap, we cannot have rotary steps. it must be a smooth rotary like a normal volume control. Thanks
1 Answer
Hi Sam, This volume control clicks for each notch.
Submitted by: Customer Service - Q&A on August 13, 2014

from wynnewood, pa asked:
July 26, 2012
I need a 70V volume control for outside use. can this be used outside? and if not, do you make an outside 70V volume control?
1 Answer
Hi Bill, Although we do not have a outdoor 70V volume control we do have a waterproof box that would seal off an indoor one if you wanted to use it outside. Here is a link CL
Submitted by: Customer Service - Q&A on July 26, 2012

from Pensacola, Florida asked:
January 24, 2012
I have a daisy chain of three bose 102 speakers rated at 25W on a 70V system. I do not see a watt rating on this volume control. Could this one handle 75W to 100W
1 Answer
Hi Rich, The 70V Mono Volume Control is rated at a nominal 10W. What is the total wattage of your 70V amplifier? If you are setting the taps at 25W, I am assuming you are running a 75 to 100 watt amplifier. The BOSE speaker also features 2, 4,8,16 in addition to the 25W setting. Are you looking to connect a single Volume to control all three speakers or three volume controls (one for each speaker)? I believe if you are utilizing a volume control per speaker ,you should have no problem with this volume control. TL
Submitted by: Customer Service - Q&A on January 24, 2012

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