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Niles SSVC-4

4-pair speaker selector with volume control

8 Reviews | 4 questions - 6 answers

Item # 190SSVC4

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Our take on the Niles SSVC-4

The SSVC-4 from Niles Audio gives you complete control of the speakers in your multi-room audio system from a single location! This selector accommodates four pairs of speakers, offering independent 12-position volume control and on/off switching for each pair. Built-in impedance-magnifying circuitry keeps your amp or receiver running safely, even when driving all the speakers at once!

The SSVC-4 from Niles Audio gives you complete control of the speakers in your multi-room audio system from a single location! This selector accommodates four pairs of speakers, offering independent 12-position volume control and on/off switching for each pair. Built-in impedance-magnifying circuitry keeps your amp or receiver running safely, even when driving all the speakers at once!


  • 12-step volume control
  • selectable impedance magnification for safe operation with any amplifier
  • handles up to 100 watts per channel
  • includes 72 room/speaker stick-on labels
  • accepts up to 14-gauge speaker wire
  • rugged all-metal chassis
  • 17"W x 2-1/16"H x 9-1/4"D
  • warranty: 10 years

Behaves as expected.

REC, Florida

What's in the Box:

  • Speaker selector with volume control
  • 72 Stick-on room labels
  • Installation & Operation Guide
  • Warranty and Registration Card

Niles SSVC-4 Reviews

Average Customer Review(s):

(8 Reviews)

Niles SSVC-4

REC from Florida on 4/26/2015

Crutchfield Customer Review (What's this?)

Behaves as expected.

Pros: speaker cable attachment system


Love it

KrisK from Los Angeles on 12/7/2013

Crutchfield Customer Review (What's this?)

it works what can I say. There is something "not elegant" about splitting up my power amps output between 4 sets of speakers. But that's the way my house is built and this unit couldn't do it any better. There is no change in sound quality running everything through the SSVC-4. It works perfect and balancing volumes in all the rooms is a breeze for me because of the layout of the house.



Niles SSVC-4

mrhlynnu from Forest Hill, MD on 8/23/2013

Crutchfield Customer Review (What's this?)

Fantastic product! Allows me to control 4 separate pairs of speakers and independently adjust on/off and volume level. Love having music throughout my whole first floor. (Front porch, kitchen, living room, and rear deck). you are hooking up to the "main speakers" of an existing home theater system, you will have to recalibrate or adjust the sound level, it will be lower than before. Price seems high, but as they say, you get what you pay for!

Pros: Well constructed

Cons: Terminal Blocks are small and challenging to work with 12 gauge speaker wire.

Niles SSVC-4

Debbie L from Lafayette, LA on 8/14/2013

Crutchfield Customer Review (What's this?)

Exactly what I was looking for ... separate volume controls for 4 separate zones.



Works like a champ

Larry from Austin, TX on 11/30/2010

Crutchfield Customer Review (What's this?)

Niles unit was recommended solution to attach outdoor speakers to a home theater unit by the Crutchfield advisor. Extremely happy and glad I went ahead and got the 4 speaker unit... I can finally add a set to the kitchen which I would have done years ago had I only known how easy it was. Almost wish I had gotten the SSVC-6 although I need the extra capacity right now. I really like wire connector/harness on the back. I am working in a tight space and it is difficult to hold a light and get the wires through the connector clips on the amp. With the removeable rail I was able to wireup each speaker/amp input where I could see and then just slide in the rail and screw it tight at a 90 degree angle to the back of the unit... nice engineering!



Perfect Solution

Frank from Palm Springs, CA on 4/3/2010

Crutchfield Customer Review (What's this?)

We bought a new property which is very open. It is a beautiful post modern glass house where all the rooms flow into one another and into two outside areas, one a pool area and one a side garden/orchard/BBQ area. We have five pair of speakers: pool, great room, BBQ area, Master Bedroom and Guest Bedroom. Putting the two bedrooms on one circuit with this speaker selector allows us to fill the property with music. Being able to control the volume in each of the areas allows a blend of sound that is very balanced. Without the individual speaker controls, we would have to have speaker controls in each area. This allows us to balance the sound from the central source. This device can handle the power, never blowing the amp. We used the Airport Express to connect our iTUNES library to our amplifier so we can fill the house with great music for our many parties. A perfect LOW COST solution which performs just as the Crutchfield advisor said it would. I am going to buy the 6 pair NILES for my primary home in Northern CA. Thank you Crutchfield! Easy set up and perfect performance!



Great Product

Bill from Ponte Vedra Beach,FL on 7/3/2009

Crutchfield Customer Review (What's this?)

I love this product and it does exactly as advertised. It was very easy to hook up, great selection of labels, and the ability to independently control the volume for each set of speakers is very easy. I'm using this with speakers in the living room, master bedroom, and outside deck and each is set at different volume levels. I highly recommend this for those looking for a simple yet effective device to control Zone 2 speakers.



Niles SSVC-4

Eileen from in VA on 9/6/2005

Crutchfield Customer Review (What's this?)

Great product, easy setup, though I balked a bit at the price. I love the wire connections. My dream of multi-room volume control is now a reality. Initially I wished the volume controls turned smoothly instead of in set increments, but after using it I find that I do like the incremental adjustment. Trust Niles -- and Crutchfield.




Hands-on research

Product Research



Construction: The chassis is durable black metal with padded feet.

Speaker Switches: Each set of speaker outputs has an on/off switch so any combination of connected speakers can be played at any given time.

Removable Speaker Terminals: There are four removable speaker output terminal blocks and one removable speaker input terminal block. The blocks are removable, making it easier to wire the SSVC-4 into your system, and the blocks accept 14 to 22 gauge wire.

Protection Circuitry: The left and right channel ground returns are isolated to make the unit compatible with all types of amplifiers. The impedance magnification switch on the rear of the unit offers settings for up to six pair of speakers (even though there are only four pair of outputs) so the impedance load presented to the amplifier remains constant.

Volume Controls: The volume controls use autoformers instead of L-pads to minimize power loss and heat production. Each volume control uses a 12 position rotary knob with "pop-free" switching and 54dB total attenuation.

Labels: Included are 72 pre printed label stickers for easy identification of the front panel controls.



  • Frequency Response: 20-20kHz +/-1.2 dB
  • Power Handling: 100 watts per channel RMS at 8 ohms

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Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

Wanted the ability to provide music throughout my listening environment. [ LESLIE  Dec 15, 2015 ]

4 questions already asked

I don't see you having a problem. I am using the Niles SSVC-4 in three of my restaurants with two pairs of speakers each. The volume control is a great feature for setting each pair according to the rooms acoustics. [ SKIP  Apr 12, 2017 ]
Russel-the answer to your question is not as easy as it might seem because it depends on the speakers you are driving. Speakers are usually rated btw 4 and 8 ohms. If all 4 speaker sets you are driving are rated at 8 ohms you should be fine-even if they are 6 ohms. If they are more difficult than that I don't know. It also depends on how loud you what to play them. If you had 4 sets of difficult speakers and you were going to rock the rafters with all four? Well, maybe not. I actually have two of these Niles switchers-both have performed flawlessly, and there are several features that are great-one I like is the little speaker connectors. The other is less obvious but more important and that is that the units are "impedance matching". That means that if your speakers have different impedances, it matches them so that the amplifier sees only one impedance-which is important for some reason. I remember a couple friends that blew their amps up in high school by driving two sets of speakers (of different impedances) with the "A" and "B" outputs of their amps run simultaneously. The simple answer is yes, you'll be OK. I run 4 sets of speakers simultaneously with a 140 w amp and only turn it up a third of the way. Happy listening! Bill [ william  Sep 10, 2015 ]
Yes - if you have the receiver has the comparability - you set the volume on the receiver, and when you control the Blu-toothed / wifi device... You are adjusting the volume output to the receiver. You are not adjusting the master volume... Just signal to the input. Works done for the most part [ JAY  Mar 18, 2014 ]
I have my Ipod hooked up to my receiver and I can adjust the volume through my iPod. It will adjust the level equally to all the speakers you have hooked up and if one area is too loud or soft you adjust individually by the volume on the Miles unit. The volume on the miles is not as delicate as a volume on your stereo or iPod. The Miles clicks in intervals. I have not found this to be a problem at all. [ RON P  Mar 17, 2014 ]
My Niles SSVC-4 is used downstream of a Pioneer AV receiver to operate a second zone of ceiling speakers in four different rooms. The second zone allows simultaneously play of the same or a different input from the AV receiver, which is fully IPod controlled. According to my Pioneer AV instructions, a second amp is required to power the second zone. I use a classic Marantz 100 Watt receiver. Changes in the Marantz receiver volume do raise / lower the speaker volume downstream of the Niles SSVC-4. The Marantz receiver volume control is manual, but I am sure that if the Marantz receiver had IPod volume control capability it would work similarly. Manual controls on Niles SSVC-4 do control speakers on / off and volume level by room, but raising the Marantz receiver master volume raises the volume in all of the room, regardless of the Niles SSVC-4 setting. I hope this helps. [ THOMAS  Mar 17, 2014 ]

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