Features and Specifications: Another heavy-duty volume control, the SVC300 is a pure resonance VC with 300 Watts of optimized sound quality and minimal bass roll-off. This VC can control 1-8 pairs of speakers simultaneously with impedance matching. The autoformer design features outstanding sound quality due to high permeability steel utilization in the volume control core. Another upgrade feature, the speaker wire inserts use lock clips and are detachable allowing you to connect to your speakers with ease. The kit includes White, Bone and Ivory décor plates and knobs for an easy match.
Features
• Control volume from any room
• Wall-mounted volume controller works with any audio/video system
• Low distortion and ruler flat frequency response
• All installation materials included
• Fits in a standard single gang box
• Dimensions (SVC300): 4.125cm W x 6.35cm H x 6.35cm D
More about Impedance Matching
All speakers have an impedance rating, typically 8 ohm for a pair of home speakers. To operate in the safest mode, most standard amplifiers and basic two-channel receivers are rated for an 8-ohm incoming load. To operate safely and consistently, the amp needs to see an 8 ohm load, and that’s where impedance-matching volume controls come into play. A basic multi-room system will typically have an amplifier/receiver, a speaker selector, 4 to 8 pairs of speakers, and volume controls. To protect the amp, the speaker selector has impedance matching that you can turn on or off (manually) depending whether you have impedance matching volume controls. More complex multi-room systems often have a volume control for each pair of speakers that is attached to the speaker selector.Impedance-matching volume controls provide more precise protection for the amplifier/receiver versus the protection built into the speaker selector. In fact, when adding impedance matching, you must turn off (disable) the protection in the speaker selector. Most impedance-matching volume controls feature three standard settings: 1/2x, 4x and 8x, while some add a 16-ohm setting like our VMS series. These settings correspond to a chart in the owner’s manual based upon the type of amplifier (4 or 8 ohm) and the number of 4 or 8 ohm speakers that you will be using in the multi-zone/room/speaker system.
- Power rating: 300 watts peak 20Hz-20kHz, 8 ohms Stereo
- -54dB, 12 step attenuation
- Impedance matching for 1/2, 4, 6, or 8 pairs of speakers. It can also use as non-impedance matching volume control if setting jumper setting at 1X which is default.
- Removable and solderless 14 gauge speaker “quick connect” terminals
- Includes metal mounting plate and color matched plastic
- Decora® style insert and knob
- Kits includes White, Ivory and Almond Plates, Inserts and Knobs
- Fits in single gang box, depth 2.9"
- 5-Yr Warranty
Questions and Answers:  By Chris from Denver on October 13, 2011 i have one svc300 and want to use it to control the volume on 2 pairs of speakers. i am having trouble getting the speaker wires (2) to fit in each of the four connector outputs. am i doing something wrong? By Customer Service - Q&A on October 19, 2011Answer: The inputs are supposed to accommodate up to 14 gauge. It gets tight when you try to connect two 16 gauge wires together. You can splice the two together with a wire connector that will accommodate three conductors then run a single jumper wire to the input; so eight conductors would become four. They would be wired in parallel still and make sure you set the impedance switch of the SVC300 to 1/2X.By Drew from Maryland on May 11, 2012 I have a long speaker cable run to this control for my outdoor speakers about 60' so I am using 12 gauge speaker wire. Will I be able to squeeze the 12-gauge wire into these connectors or will I have to add a junction box and splice the 12 gauge down to 14 gauge wire? I would like to not have to splice down the cables obviously, but it looks like there are no speaker controls that can accommodate 12 gauge wire. Thanks in advance. By Customer Service - Q&A on May 11, 2012Answer:Drew,
This is made for 14 gauge max. Most customers thin the wire down to accommodate that large of speaker cable.
CLBy elmer l. tayone from davao city, phillipines on October 27, 2011 WHERE CAN WE FIND A SUPPLIER HERE IN THE PHILLIPINES, SVC 300 VOLUME CONTROL By Customer Service - Q&A on October 27, 2011Answer:We do not have a supplier in the Philippines; however, we do ship overseas. If you are a dealer/or installer, we encourage you to take advantage of our dealer program. Keep in mind that you will have to send us a copy of your business license or permit as required in the Philippines.
MABy John from New York on May 29, 2012 I have a Lafayette stereo receiver rated at 150watts with your typical speaker A,B A&B combinations.
I have 2 indoor speakers already hooked up. I have installed (2) Polk Audio RC80I speakers installed
outside under the eave. Is the SVC300 the proper switch to use? And if it is, what setting would I use
on the switch itself? Appreciate your help...Thanks.. By Customer Service - Q&A on May 30, 2012Answer:Hi John:
I am assuming you mean a stereo pair of speakers on the inside connected to the Speaker A output and you are planning to use the pair of Polk In-Ceiling Speakers connecting them to the Speaker B output. The SVC300 will work fine if you are planning to mount the switch in the wall in the interior of the home. We do have outdoor Volume Controls as well. So one pair of 8 ohm speakers inside and a second pair of 8 ohm speakers outside, is that about right? Question are you planning to connect a volume control to the inside pair as well or are you just wanting to control the outdoor speakers with the single volume control. In this setup the Volume Control would be set to 1/2x the same it would be set to if you had a second volume control connected to the inside speakers. I might suggest our SSVC1 table top volume control which features both a on/off switch and Dual source A/B switch. You could step up and use our SSVC2 and connect both the inside speakers and outside speakers. It all depends on how much control you are looking for and how accessible you are to the speaker wires. We do offer our CL3 speaker wire which works for both in-wall and outdoors including direct burial. You can buy either 4 or 2 conductor (16 or 14 gauge). 4 Conductor would be used from the Receiver to the Volume Control or Speaker Selector than use 2 conductor to each speaker. Please let me know your exact setup so I can be of more help.
TLBy hadis jusic from Ankeny,iowa on November 20, 2011 I have hard time to figure up how to conect my two pairs ceiling speakers end one pair wall speakers with wall volume control and ampfire'Whera i need to go with my wires from speakers to amp' or wall wolume comtrol please help By Customer Service - Q&A on November 21, 2011Answer:The SVC300 Volume Control is connected to the amplifier using either speaker A or B output with a 4- conductor cable (right and left with both having a positive and negative). If you are using a single volume control for three pairs of speakers, you need to wire them in parallel. Take four conductors from the output of the volume control then splice or terminate the wires in parallel (i.e., positive to positives and negatives to negatives). Take the left input (positive and negatives) for the three pairs and terminate them to the 2-conductor coming from the left (+/-) output of the volume control (positive to positves and negatives to negatives). Do the same with the right (+/-) side inputs as well from the three pairs of speakers. Now here is the key: make sure you set the impedance switch of the SVC300 to 4X!
TL/MABy Cerys from Hong Kong on August 7, 2012 What is the dimension of the volume control and is there a matching base box available as well? Thanks! By Customer Service - Q&A on August 8, 2012Answer:Hi Cerys,
The in wall SVC300 will fit in a standard single gang box. We have the OVC300 that has a complete box type housing primarily for outdoor applications but can be adapted for indoor use.
CL
Dimensions are:
SVC300: 4.125cm W x 6.35cm H x 6.35cm D
OVC300: 7.25cm W x 11.43cm H x 8.25cm DBy Nicole from Hong Kong on August 7, 2012 I would like to ask whether a Back Box is included. Would you please also advise the exact dimension for the device and the back box. Hong long does it take for the product to arrive Hong Kong?
Thanks a lot! By Customer Service - Q&A on August 8, 2012Answer:Hi Nicole,
The SVC300 does not feature a back box, but the OVC300 does include one. The in-wall SVC300 will fit in a standard single gang box. We have the OVC300 that has a complete box type housing primarily for outdoor applications but can be adapted for indoor use.
CL
Dimensions are:
SVC300: 4.125cm W x 6.35cm H x 6.35cm D
OVC300: 7.25cm W x 11.43cm H x 8.25cm D
We ship United States Postal Service to HK.
CL/TL/MABy AARON from BLAINE ,WASHINGTON on April 17, 2012 WHEN WILL YOU HAVE THESE AVAILABLE? THE SVC300 By Customer Service - Q&A on April 17, 2012Answer:Hi Aaron:
We hope to have the SVC300 back in stock by mid to late May. We do have ample inventory of the VMS-300 the Slider style Impedance matching Volume Controls.
TLBy Dave from NH on December 30, 2012 The instruction states: "find out the minimum impedance of the amplifier found on the back" it states 6-8 ohm.
Other instructions state switch setting is based on how many pairs of speakers per control. I am running 1 pair per control, so what do I set the impedance switch to....1/2x or 8x?
By Customer Service - Q&A on December 31, 2012Answer:Hi Dave,
The Impedance setting is based upon how many total speakers you are connecting to a single output from your amplifier/receiver, whether you are connecting directly to the amplifier/receiver to the volume controls or going through a speaker selector before getting to the volume controls. As an example if you have four pairs of volume controls each connected to a pair of 8 ohm speakers, your setting will be 4X on each volume controls. If you were using two volume controls connected to two pairs on each volume control, the setting would still be 4X. If you have three pairs of 8 ohm speakers connected to three volume controls, step up to 4X. If you have 5 (6, 7 or 8) total speakers, step up to 8X. If you have a pair of 4 ohm speakers (BOSE outdoor speakers as an example), you count them as two 8 ohm speaker pairs. Let me know what your amplifier/receiver you are using and how many speakers you have and if you are planning to use a speaker selector. If you are using a speaker selector with impedance-matching volume controls, you may need to make sure the protection switch or button is disabled (turned off). That way the impedance- matching volume controls are doing the protection.
TL/MA 1503By Justin from California on August 22, 2012 This may be a simple question but can this be used in a 12V audio system in an RV? By Customer Service - Q&A on August 22, 2012Answer:Hi Justin,
The SVC300 will work because you are still at a speaker level (8ohm). This is a passive in-line device. The12 volt power is to the head unit which has nothing to do with the speaker signal. So yes you can use one of these between your head unit and the speakers.
CLProduct Reviews:
SVC300 Decora Stereo Self-Impedance Matching Heavy Duty Volume Control
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5 Stars based on 13 Review(s) |
 |
A Volume Control!
February 26, 2013
For the expense, they are great and get the job done.
However, they are really large (they need a deep wall box), and the
wire hookups could have been designed better (they won't take 14
gauge wire well and they switch sides (positive on the incoming is
on the inside left, the outgoing positive is opposite right
back).
Pros:Low Power Consumption, Easy To Use
Cons:Bluky, Heavy
Sandbug Sound
Glendale, CA
5 Stars
I would recommend this item to a friend.
Just as good as before
October 27, 2012
I had the box from our AV installer and found Outdoor
Speaker Depot online. The controllers came in just a couple of days
and we now have one in every public area. They work beautifully and
the delivery was excellent.
Pros:Quality Construction, Easy To Set Up, Easy To Use
Farmer B
New York City Area
5 Stars
I would recommend this item to a friend.
worked great
September 6, 2012
needed a better volume control that could handle more
watts and this one worked great
Pros:Easy To Set Up, Easy To Use
Best Uses:Upgrade
chevy99
visalia ca
5 Stars
I would recommend this item to a friend.
SVC 300's Work Great!
September 4, 2012
I installed a multi-zone system with ten volume controls
to multiple speakers in a new dental office. I had no previous
experience with sound systems. OSD helped design and recommend the
components needed for the sound system in the office. The entire
system including the SVC 300's work great.
Pros:Easy To Set Up
Best Uses:New system
Dr. C.
Central Texas
5 Stars
I would recommend this item to a friend.
Stereo, heavy duty volume ...
December 3, 2010
Stereo, heavy duty volume controls came in in a timely
manner and were just what we had ordered. We are installing them
now and are very pleased. The gentleman on the phone was very
helpful in our answering our questions..
Anonymous
Undisclosed
5 Stars
I ordered 2 along with ...
June 4, 2009
I ordered 2 along with wire great product and fast
shipping
Wiliam
Undisclosed
5 Stars
We purchased the OSD ...
January 15, 2009
We purchased the OSD volume control & speaker
selector, works great, fast delivery at a great price, only wished
we had ordered 2 of each, will be ordering another of each to
finish off our home stereo system.
Much better product than ...
December 11, 2007
Much better product than expected. If you are in need of
a good volume control (2 channel) this will fit the bill. A no
hassle purchase with excellent shipping, etc Buy here and you will
not be disappointed I sure wasnt. Tom
Very Nice! They shipped ...
February 19, 2007
Very Nice! They shipped quickly as promised and the
quality of the products (impedance balanced speaker controls) is
top notch. Equal quality controls quoted at a discount in town was
approx 3 times more expensive. The price, quality and fast customer
service was very very good! I would definately use them and have
already recommended them to friends.
I used to buy from Parts ...
January 7, 2007
I used to buy from Parts Express for my first 2
Do-it-yourself jobs. Not any more, since I found OSD. I sent a
technically-related email to them at 6pm my time, and got a
response back within 45 minutes! Talk about first impressions!!
Bought an 8 speaker selector, 2 volume controls, pair of awesome
ATc-6 speakers, & wires for my installation. I wanted to save a
little money vs. pay someone else to do it, and it was a breeze!
I'm not the most handy guy, so when I asked how to mount
the volume controls, a guy walked me through how to punch the hole
in the wall, and install a single gang box (hadn't done
that before). The speakers sound great, and I saved $750 with
OSD's products and technical help both on the phone and by
email. I'll never go to Best buy or other websites again.
OSD made me look like "the man" when I showed my wife our
savings...and she loves the sound in our basement! Stop searching
for quality, afforable indoor speakers. They've got it
nailed. Oh, by the way, their name may say "outdoor..." but they
are indoor speacilists as well.
Excellent products, it ...
August 10, 2006
Excellent products, it didn't fit into my single
gang box but I swamp the single gang box with the Carlon SC100
adapter ring that you can get from local hard ware store. The
adapter works like a charm.
Great quality product at ...
August 7, 2006
Great quality product at bottom price. I had problem with
size of this VC due to its larger size. It won't fit in
the single gang box until I bought a data ring bracket from Home
Depot. That makes it perfect fit.
Same quality but cost ...
June 3, 2006
Same quality but cost half of what I used to pay for
other brand.
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