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Home / Product Category / Whole House Audio / Volume Controls / In-Wall Volume Controls / OSD Audio SVC405 300-Watt Decora Style Volume Control Kit with Impedance Matching, A/B Switching and White, Ivory and Almond Colored Trim Plates

OSD Audio SVC405 300-Watt Decora Style Volume Control Kit with Impedance Matching, A/B Switching and White, Ivory and Almond Colored Trim Plates

Product code: OSD-SVC405

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OSD Price: $39.95
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Features & Specifications

Features

• Decorative, decora style impedance-matching volume control for whole house audio systems and dedicated audio zones
• Rated at 300 Watts (100 RMS) per channel with minimal bass roll-off • Includes 2-source (A/B) switching for choice of two sources and one pair of speakers or two pairs of speakers and one source
• Impedance-matching feature stabilizes the ohm load so parallel connections of multiple volume controls can be installed without damaging the amplifier
• Accepts up to 14-gauge wiring and fits in a standard gang box with a depth of 2.9”
• Includes junction box and screws as well as white, ivory and almond trim plates to match any room décor
• Precision electronics provide low distortion and a ruler flat frequency response
• Rotary-style knob for a wide range of listening volumes
• Installs easily and works with almost any audio system

OSD Audio SVC405 is a 300-Watt impedance-matching volume control with two-source (A/B) switching that allows you to adjust the volume of a pair of speakers independently of other speakers and control the volume of two audio sources and one pair of speakers or two pairs of speakers and one audio source. Ideal for both home and commercial installations, this decorative in-wall volume control includes an impedance-matching feature that stabilizes the ohm load so parallel connections of multiple volume controls can be installed without damaging the amplifier. The SVC405 maintains the full hi-fi audio frequency response with no low frequency roll-off and is rated at 300 Watts per channel (100W RMS). The rotary knob adjusts the volume from inaudible to loud, and when you order the SVC405, you get the complete kit that includes the junction box, screws and assorted color trim plates (white, ivory and almond) so you can choose the color that best matches your room.

What is 2-Source (A/B) Switching?


A/B or dual-source switching is a convenient feature that allows flexibility when you’re designing your whole-house audio system. With A/B switching, you can connect two sets of speakers and one source, and those speakers can be in same room or separate rooms. For example, speakers connected to source A could be in the living room and speakers connected to source B could be in the dining room. Then simply use the A/B switch to choose between the zones. Another option would be to connect two sources such as one amp and one receiver to play through one set of speakers and switch between the sources.

What Is Impedance Protection?


Speakers are specified by impedance, which is a measurement of resistance to alternating current, and a common value for speakers is 8 ohms. When you’re connecting multiple speakers to a receiver or amplifier, you need to stay above the amp’s minimum load requirements because going below the impedance rating can overheat or even damage expensive equipment. The SVC100 allows you to match the impedance with the number of speakers being controlled with the capabilities of your amp. A basic multi-room system will typically have an amplifier/receiver, a speaker selector, four to eight pairs of speakers, and volume controls. Impedance-matching volume controls feature three settings depending on how many speakers you are connecting. For one to two pairs of 8-ohm speakers, the setting is 1/2x; for three or four pairs of 8 ohm speakers, the setting is 4X. Keep in mind that volume controls do not add gain (volume) to your speakers but simply attenuate the volume up or down. During setup, you'll set the source volume to its optimum level, then the volume control turns the sound down to inaudible levels.

Specifications

Other Product Info

There are two types of volume controller - Impedance matching and Non-impedance matching. If you connect your speaker parallel to the receiver or connect the speakers into an impedance protection speaker selector, use impedance matching volume controller. If you connect just one pair of speaker directly to the receiver or your speakers are connected directly into an impedance matching speaker selector, use regular volume controller.
Quality is critical to the successful sonic performance of any whole house audio system. After all, it’s about how the system sounds and how well it works. From front to back, our pro-install series is built with close attention to performance, reliability and durability. The result is a blend of transparency and functionality, with low distortion and ruler flat frequency response. We bring you seamless control for every room in the house.

QUESTIONS & ANSWERS

By Cory from Minneapolis, MN on December 24, 2011
I am looking to have the a/b select on the control like this product, however, I also want to be able to turn the speakers off from the control...can this be accomplished with this product by turning the volume control down to the first position? Thanks.
By Customer Service - Q&A on December 27, 2011

Answer:
Hi Cory,

The volume control does not disconnect totally when turned all the way to the left for either A/B. A better choice for your application would be our SSVC2 that features a dedicated volume control for each speaker as well as an on/off switch per zone. It also features dual source inputs switchable per zone. Our factory direct price of $89.95 is very competitive as well.

TL/MA

By Z from Phoenix on December 5, 2011
Can the speakers be selected to play A and B at the same time or is it just either A or B playing at once?
By Customer Service - Q&A on December 5, 2011

Answer:
Hi Z

Either A or B, but not both.

TL

By Jim from St. Louis, MO on February 22, 2012
The description states it can be used with 2 inputs... I want to use it with one input switching between 2 sets of speakers... will this work for that?
By Customer Service - Q&A on February 22, 2012

Answer:
Jim,
Yes the SVC405 can be used for either two sources, and one pair of speakers, or two pairs of speakers and one source.
CL

By OJH from Boston on February 22, 2012
I am looking for a 2-source selector switch and volume control combination for outdoor speakers, how would this SVC405 device survive in New England if it where protected within a sealed outdoor weather proof receptical with a raintight clear plastic while-in-use cover? or would temperature differences cause material condensation issues?

Also, a previous question asks if this controller can completely turn off the signal to the speakers, and the response was not completely - but does the lowest click on the volume control at least result in no noticeable sound eminating from the speakers?
By Customer Service - Q&A on February 22, 2012

Answer:
OJH - You could do it with the weatherproof box. I don’t see condensation being an issue. Typically, when you get to the lowest click, it is in audible. This does depend how loud your source is set to, however.
CL

Product Reviews

OSD Audio SVC405 300-Watt Decora Style Volume Control Kit with Impedance Matching, A/B Switching and White, Ivory and Almond Colored Trim Plates
$39.95
4 Stars based on 2 Review(s)
Scott
Milwaukee, WI
4 Stars
I would recommend this item to a friend.

Volume controller + A/B switch
January 30, 2012
Product was delivered with multiple color options. at first this was confusing since no instructions were provided on how to assemble the device or connect it to the source / speakers. With that said, it only took a few minutes to figure out and once installed the unit met my expectations and is working very well.

paul
arlington
4 Stars
I would recommend this item to a friend.

"I would buy this product again and agai
July 12, 2011
great product.
Pros:
Quality Construction, Easy To Use, Easy To Setup
Best Uses:
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