Monoprice SSVC-4.1 Single Input 4-Channel Speaker Selector with Volume Control
Product # 38159
UPC # 889028123096
$179.99
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Key Features
- Connect and safely control multiple speaker pairs with a single amplifier
- Automatic impedance protection circuitry
- 100 watts/channel continuous power handling capacity, 200 watts/channel peak
- 5‑ohm minimum amplifier impedance with four 4‑ohm speakers selected, 6‑ohm minimum with 8‑ohm speakers
- Individual zone on/off buttons and volume controls
- Heavy‑duty screw‑type connectors supporting 12‑18 AWG speaker wire
- Isolated left/right circuit grounds provide safe connection for amplifiers with floating grounds or bridged configurations
- Accurate, noise‑free switching
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Questions and Answers
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Browse 26 questions
Browse 26 questions
and 34 answers
Given the "4.1" name is there a subwoofer jack? If so, is it grouped with one of the zones, e.g., Zone 1?
Kevin F
on Jul 6, 2020
BEST ANSWER: 4 Zones, 1 Source is where the 4.1 comes from. No sub out.
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- Inaccurate
- Carl B on Jul 6, 2020
- Purchased on May 6, 2020
BEST ANSWER: 4 Zones, 1 Source is where the 4.1 comes from. No sub out.
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- Carl B on Jul 6, 2020
- Purchased on May 6, 2020
There is no specific subwoofer jack. No RCA connections.
It has the following:
Inputs: From Amp into Speaker Selector (L +, - and R +, -)
Outputs: Zone 1 (L +, - and R +, -), Zone 2, Zone 3, and Zone 4.
All connections take up to 12 gauge wire.
It has the following:
Inputs: From Amp into Speaker Selector (L +, - and R +, -)
Outputs: Zone 1 (L +, - and R +, -), Zone 2, Zone 3, and Zone 4.
All connections take up to 12 gauge wire.
- Reply
- Inaccurate
- Glen L on Jul 6, 2020
- Purchased on Apr 1, 2020
This has no subwoofer input. You will connect to speaker input. I uses zone 2 from my receiver to connect to the 4 zone selector input. Connect all Speaker zones and select the zone you want to hear or listen to all zones. This item worked really well for me.
- Reply
- Inaccurate
- Devon R on Jul 6, 2020
- Purchased on May 10, 2020
No. Strictly speaker connections to allow for multiple pair to be run off two channels. It also offers volume control for each of the four pair of speakers. You will have two channels for the input and four left/right output channels.
- Reply
- Inaccurate
- Kelley V on Jul 8, 2020
- Purchased on Feb 24, 2020
There are 4 jacks for 4 sets of speakers plus one jack to connect to amplifier.
- Reply
- Inaccurate
- Sandy W on Jul 6, 2020
- Purchased on Jun 11, 2020
There is no subwoofer jack for any of the zones
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- Inaccurate
- Brooks T on Jul 6, 2020
- Purchased on May 12, 2020
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Can i have all the speakers on at the same time (four right and four left) or am I limited to only two?
A shopper
on Jan 31, 2021
BEST ANSWER: You can have any or all of the speakers on at the same time. And I don't think you need to worry about overloading, the selector is advertised as having a built-in impedance protection circuit.
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- Inaccurate
- Stephen H on Jan 31, 2021
- Purchased on Jun 14, 2020
BEST ANSWER: You can have any or all of the speakers on at the same time. And I don't think you need to worry about overloading, the selector is advertised as having a built-in impedance protection circuit.
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- Inaccurate
- Stephen H on Jan 31, 2021
- Purchased on Jun 14, 2020
You can have any or all on at once.. also you can have them at different volumes.
Works really well
Works really well
- Reply
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- Dan W on Jan 31, 2021
- Purchased on Jul 4, 2020
Yes. You can have all speakers playing at the same time. You can also have them playing at different levels.
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- Inaccurate
- Devon R on Jan 31, 2021
- Purchased on May 10, 2020
You should be able to have all the speakers on at any time.
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- Inaccurate
- JP on Jan 31, 2021
- Purchased on Jul 14, 2020
Yes. All can be on at the same time
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- Addison M on Jan 31, 2021
- Purchased on Mar 30, 2020
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Can i add this to a multizone audio system to add more speakers to a zone. For instance add four sets of speakers in an outdoor zone (zone 1 for instance) and then turn off/down individual sets. In essence make a 4 subzone system for zone 1 off the main?
Matt G
on Feb 24, 2021
BEST ANSWER: Yes, use the zone one off your amp/reciever for the input source of this device, then you can control up to four zones independently.
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- Inaccurate
- keith l on Feb 24, 2021
- Purchased on Aug 14, 2020
BEST ANSWER: Yes, use the zone one off your amp/reciever for the input source of this device, then you can control up to four zones independently.
- Reply
- Inaccurate
- keith l on Feb 24, 2021
- Purchased on Aug 14, 2020
The connections are there, but the question of what your amp can drive and all that are over my head.
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- Inaccurate
- ferglaw on Feb 24, 2021
- Purchased on Sep 22, 2020
Yes...that is exactly what this product is for.
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- Jeff G on Feb 24, 2021
- Purchased on Nov 13, 2020
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Does this boost power or just limits power to the speakers?
Don
on Mar 7, 2021
BEST ANSWER: It’s not an amp, it can balance the sound over four rooms or sets of speakers , adjusting the output for each pair individually. Increase the volume input to increase the volume output. No amplification in unit.
- Reply
- Inaccurate
- john n on Mar 8, 2021
- Purchased on May 6, 2020
BEST ANSWER: It’s not an amp, it can balance the sound over four rooms or sets of speakers , adjusting the output for each pair individually. Increase the volume input to increase the volume output. No amplification in unit.
- Reply
- Inaccurate
- john n on Mar 8, 2021
- Purchased on May 6, 2020
This does not boost power in any way.
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- Phil G on Mar 7, 2021
- Purchased on Jun 25, 2020
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What are the dimensions?
A shopper
on Apr 11, 2021
BEST ANSWER: 12”w x 6-1/4 deep x 2” h. Knobs add about 3/4 “ to depth, so 7” incl knobs.
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- Inaccurate
- Sandy W on May 21, 2021
- Purchased on Jun 11, 2020
BEST ANSWER: 12”w x 6-1/4 deep x 2” h. Knobs add about 3/4 “ to depth, so 7” incl knobs.
- Reply
- Inaccurate
- Sandy W on May 21, 2021
- Purchased on Jun 11, 2020
12"x6"x2" not including knobs on front and wires out the back
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- Julie N on May 22, 2021
- Purchased on Dec 6, 2020
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I have had similar units like this with volume controls. The other unit seemed to loose volume quantity when using just 1 channel compared to when I hook those same 2 speakers to the amp directly it is much louder. The volume dial on the selector unit was turned up all the way. Is your unit like that with loss of volume when put thru your speaker selector or is it 1 to 1 volume?
A shopper
on Jan 11, 2023
BEST ANSWER: Been using mine for several months now, haven't noticed a loss of volume like you've described. But I've never measured that, either. If there is a volume loss, it has not been problematic, as I've been able to deliver the volume I desired to each of the speaker pairs on this system.
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- Inaccurate
- Kim B on Jan 25, 2023
- Purchased on May 2, 2022
BEST ANSWER: Been using mine for several months now, haven't noticed a loss of volume like you've described. But I've never measured that, either. If there is a volume loss, it has not been problematic, as I've been able to deliver the volume I desired to each of the speaker pairs on this system.
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- Inaccurate
- Kim B on Jan 25, 2023
- Purchased on May 2, 2022
I exchanged the 4 unit one for a 6 input one right after I purchased it. I am powering 6 sets of speakers and never "lose" any volume. Be sure to follow the instructions for initial volume set up.
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- Allan Kraybill K on Jan 25, 2023
- Purchased on Jan 25, 2022
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Are the volume controls infinitely adjustable or do they have steps? If steps approximately how many? Thank you
A shopper
on Dec 13, 2024
BEST ANSWER: Steps, and they go to a 11. That's not a joke. They really go to 11.
- Reply
- Inaccurate
- David K on Dec 14, 2024
- Purchased on Jul 31, 2024
BEST ANSWER: Steps, and they go to a 11. That's not a joke. They really go to 11.
- Reply
- Inaccurate
- David K on Dec 14, 2024
- Purchased on Jul 31, 2024
There are 11 incremental steps on the volume dial.
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- Kris N on Dec 13, 2024
- Purchased on Feb 6, 2024
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What are the dimensions of the unit? With and without “feet”.
A shopper
on May 3, 2020
BEST ANSWER: Approx. 12-1/8" x 5-7/8" x 2-1/8". The feet aren't detachable as far as I can tell, but are negligible, perhaps 1/8".
- Reply
- Inaccurate
- Stephen H on May 21, 2021
- Purchased on Jun 14, 2020
BEST ANSWER: Approx. 12-1/8" x 5-7/8" x 2-1/8". The feet aren't detachable as far as I can tell, but are negligible, perhaps 1/8".
- Reply
- Inaccurate
- Stephen H on May 21, 2021
- Purchased on Jun 14, 2020
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I have an 5.1 receiver, and i also have 4 ATMOS speakers can i hook this up to my receiver and hook up my DOLBY ATMOS SPEAKERS? I have 4 of them on top of my front left and front right and also my left rear and my right rear.
New User U
on Sep 19, 2020
BEST ANSWER: No, you cannot use this as a solution for which you described.
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- Inaccurate
- New User U Staff on Sep 21, 2020
BEST ANSWER: No, you cannot use this as a solution for which you described.
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- New User U Staff on Sep 21, 2020
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Hi, can you bridge channel 1 , (L- and R+) to 1 speaker ( -and+) to get full power from 1 channel?
B H
on Jan 5, 2021
BEST ANSWER: You dont need to bridge anything to get full power.
- Reply
- Inaccurate
- New User U Staff on Jan 5, 2021
BEST ANSWER: You dont need to bridge anything to get full power.
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- Inaccurate
- New User U Staff on Jan 5, 2021
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I have two sets of speakers, and one amplifier. Do I connect Speaker one to one channel, and speaker to channel 2 And does the channel output go to the amplifier in?
A shopper
on Oct 15, 2021
BEST ANSWER: I assume that the "two sets of speakers" are stereo each having a left and right channel, making a total of 4 speakers. I also assume that the speakers are "Passive" and not "Powered."
"does the channel output go to the amplifier in?" NO!
The "Output" of the Amplifier goes to the "Input" on the volume controls.
The speakers are then connected to the four audio "Output" controls.
I have connected mine as above from amp to volume control, I have my front Left And Right connected to Zone 1. For Zone 2 I have just the left speaker connected, Zone 3 I have just the right speaker connected as I wanted to control the rear speakers the left and right independently. Zone 4 will before for My side speakers when I can afford them.
I hope this answers your questions.
"does the channel output go to the amplifier in?" NO!
The "Output" of the Amplifier goes to the "Input" on the volume controls.
The speakers are then connected to the four audio "Output" controls.
I have connected mine as above from amp to volume control, I have my front Left And Right connected to Zone 1. For Zone 2 I have just the left speaker connected, Zone 3 I have just the right speaker connected as I wanted to control the rear speakers the left and right independently. Zone 4 will before for My side speakers when I can afford them.
I hope this answers your questions.
- Reply
- Inaccurate
- Stan R on Oct 15, 2021
- Purchased on Sep 29, 2021
BEST ANSWER: I assume that the "two sets of speakers" are stereo each having a left and right channel, making a total of 4 speakers. I also assume that the speakers are "Passive" and not "Powered."
"does the channel output go to the amplifier in?" NO!
The "Output" of the Amplifier goes to the "Input" on the volume controls.
The speakers are then connected to the four audio "Output" controls.
I have connected mine as above from amp to volume control, I have my front Left And Right connected to Zone 1. For Zone 2 I have just the left speaker connected, Zone 3 I have just the right speaker connected as I wanted to control the rear speakers the left and right independently. Zone 4 will before for My side speakers when I can afford them.
I hope this answers your questions.
"does the channel output go to the amplifier in?" NO!
The "Output" of the Amplifier goes to the "Input" on the volume controls.
The speakers are then connected to the four audio "Output" controls.
I have connected mine as above from amp to volume control, I have my front Left And Right connected to Zone 1. For Zone 2 I have just the left speaker connected, Zone 3 I have just the right speaker connected as I wanted to control the rear speakers the left and right independently. Zone 4 will before for My side speakers when I can afford them.
I hope this answers your questions.
- Reply
- Inaccurate
- Stan R on Oct 15, 2021
- Purchased on Sep 29, 2021
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Maximum size of speaker wire?
vladimir t
on Jun 17, 2022
BEST ANSWER: I'm using 16ga wire with 40'+ runs with no degradation in sound.
- Reply
- Inaccurate
- Allan Kraybill K on Jun 20, 2022
- Purchased on Jan 25, 2022
BEST ANSWER: I'm using 16ga wire with 40'+ runs with no degradation in sound.
- Reply
- Inaccurate
- Allan Kraybill K on Jun 20, 2022
- Purchased on Jan 25, 2022
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Can I use it with an Extron Amplifier (XPA U 1004)?
A shopper
on Oct 15, 2023
BEST ANSWER: This is a 2ch/stereo input volume control that will distribute those 2 channels to 4 zones with volume. the extron you describe is 4 mono channels. not an ideal match. if you are looking to add volume control at the rack for 4 mono channels, your best bet is probably buying 4 mono in-wall volume controls and mounting them in a 4 gang electrical box.
- Reply
- Inaccurate
- John M D on Oct 15, 2023
- Purchased on Jul 27, 2023
BEST ANSWER: This is a 2ch/stereo input volume control that will distribute those 2 channels to 4 zones with volume. the extron you describe is 4 mono channels. not an ideal match. if you are looking to add volume control at the rack for 4 mono channels, your best bet is probably buying 4 mono in-wall volume controls and mounting them in a 4 gang electrical box.
- Reply
- Inaccurate
- John M D on Oct 15, 2023
- Purchased on Jul 27, 2023
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Can I run speakers with different impedance on different channels? Channel 1 - 8 ohm, channel 2 - 6 ohm, etc.
A shopper
on Nov 19, 2023
BEST ANSWER: Sure, it may effect the overall impedance to the amp slightly, but not enough to matter.
- Reply
- Inaccurate
- John M D on Nov 20, 2023
- Purchased on Jul 27, 2023
BEST ANSWER: Sure, it may effect the overall impedance to the amp slightly, but not enough to matter.
- Reply
- Inaccurate
- John M D on Nov 20, 2023
- Purchased on Jul 27, 2023
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The description refers to 4 ohm or 8 ohm speakers. I want to use it to connect two pairs of 6 ohm speakers. What would the impedance to the amp be in this scenario?
A shopper
on Mar 8, 2026
BEST ANSWER: Hi, the amplifier should see a safe impedance much closer to a safe 5 or 6 ohms because the unit has built-in impedance-matching protection. I hope this helps.
- Reply
- Inaccurate
- Jhomar R Staff on Mar 8, 2026
BEST ANSWER: Hi, the amplifier should see a safe impedance much closer to a safe 5 or 6 ohms because the unit has built-in impedance-matching protection. I hope this helps.
- Reply
- Inaccurate
- Jhomar R Staff on Mar 8, 2026
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What speaker is best to use with this?
Matthew R
on Dec 22, 2020
I have two sets of speakers and one amplifier.Can I put speakers A to channel 1 and speakers B to channel 2? And would my output come out of the four channel device you’re selling?
Alex M
on Oct 15, 2021
OK thanks for answering my question one more question. So I can use two sets of stereo speakers with its own separate volumes on one amplifier. My amplifier output goes into the input of the four channel device And my two sets of speakers goes to the output of the channel device so I can control with this Device, the vol. of ea. speakers independently from the other. Is that correct?
Alex M
on Oct 15, 2021
Can 4ohm speakers be connected? ...the description says in can, however the photo of the rear of the unit says to connect 8ohm speakers. Lastly, if 4ohm speakers can be connected is there a switch to tell the unit the speaker ohms or is it self sensing? Please advise.
New User U
on Oct 25, 2021
How do I connect this to a Denon PMA600-ne?
A shopper
on Jan 24, 2022
Is the 100 watts per channel maximum continuous power for an amp rated at 100wpc at 4 ohms, 6ohms or 8ohms? Sonos for example is rated at 125wpc at 8ohms but 250wpc at 4ohms.
A shopper
on Feb 15, 2023
Will this unit safely control Martin Logan electrostatic speakers plus regular speakers?
A shopper
on Apr 27, 2023
Will I have any issues if using this for a mono distribution? I.e. only the left channel (or right)
John M
on Mar 2, 2024
Hi, I see the max continuous wattage is 100watts per channel. Is that for the input channels or the output channels? If it's the input, would that 100watts be divided equally between the outputs?
A shopper
on Aug 28, 2024
Are the volume controls infinitely adjustable or do they have steps? If steps approximately how many? Thank you
New User U
on Dec 13, 2024
Can I connect two sets of 4-ohm speakers and one set of 8-ohm speakers, for a total of 3 zones? My Sonos Amp is stable at 4 or 8 ohms. will the SSVC-4.1 feedback a 4 or 8 ohms to the amp if all 3 zones are on at the same time
A shopper
on Jul 16, 2025
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Rated 4 out of 5
Splitter with Outdoor Volume Control
Performs as expected at a nice price point.
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Rated 3 out of 5
A good solution but a quality fail
I bought to replace an uncontrolled speaker selector for 4 sets of speakers in and outside my house. Really liked the plug-in terminals. However, after a couple weeks, one of the push button switches failed to the off position. I now have one speaker set that is effectively dead.
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Rated 5 out of 5
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Rated 4 out of 5
Does the job with 4 speakers
Unit does what it is advertised to do. But instructions are lacking clarity. The control for each speaker group has a volume knob and an on-off button. It does not tell you that pressing the button in turns that speaker group on. My one other complaint is that the fourth speaker group button, when pressed in, will not come back out. The machining of the case is out of alignment. That's okay with me because I don't need to turn that speaker group off. But if you do...
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Rated 5 out of 5
Perfect
I run my 'B' speakers from my main living room AV amp to the rear of the house and into this unit. I then have speakers run to the kitchen, bathroom, basement and backyard. This little piece of wonder allows me to select which speakers and adjust volume as well. Feels like a well made product. Heavy. Solid on/off buttons. Satisfying clicks on the volume control. Great speaker wire connectors. No issues. Great product.
Thanks again MONOPRICE!!!!!
Thanks again MONOPRICE!!!!!
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Rated 5 out of 5
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Response from Monoprice
We appreciate your feedback on our product. We are glad to hear that you are satisfied with your purchase and that it meets your expectations. Thank you for shopping with Monoprice! :)
June 19, 2023
Eli S
Rated 5 out of 5
Solid piece, great value
Very heavy duty construction, works great. Removable connector blocks make it a snap to hook up speaker wires and ensure no shorts. Price is a third of the same product from Niles Audio, no difference in quality. Monoprice delivers as always!
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Rated 5 out of 5
4 ch speaker selector
looks good and solved my volume control issues
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Rated 5 out of 5
Very Impressive
Superb channel selector. Very well made, very good looking, and priced right. A top name brand would of cost most likely twice the price. This unit by Monoprice does the job w/ four separate switches and four separate volume controls one for each zone. Yes I would highly recommend this product
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Rated 5 out of 5
Quick shipping. Great product I am using it for multi zone speakers around my pool.
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