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Home / Product Category / Whole House Audio / Speaker Selectors / DSM4 Dual Source 4 Zone Speaker Selector High Performance with Amplifier Protection

DSM4 Dual Source 4 Zone Speaker Selector High Performance with Amplifier Protection

Product code: OSD-DSM4

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OSD Price: $39.95
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Features & Specifications

Speaker selectors allow you to connect multiple pairs of speakers to your stereo receiver or amplifier. This is a great custom feature that lets you listen to any pair of speakers, for instance in the kitchen or bath, or any combination of pairs simultaneously. The DSM4 is a dual source speaker selector with an independent a/b switch per zone. With this unit, you can choose two music sources at each zone.

Ugraded Model with Improved Input/Output Connectors!

The upgraded, European-style removable input/output connectors give you better leverage when terminating cable and accept up to 14 gauge cable.


Other Product Info

Dual source with independent a/b switch per zone - you can choose two music sources at each zone.


  View Owner's Manual          


By Steve Weston from Melbourne, FL on June 26, 2012
I have a Yamaha HTR-5760 7-channel AV Receiver. The unit has an A & B speaker selector buttons. I will be running the Surround Sound off the A selector and 4 pair of ceiling speakers (in 4 other rooms) off the B Selector. Each of the 4 rooms has an individual volume control. Is the DSM4 the proper selector box for my intended use?
By Customer Service - Q&A on June 27, 2012

Hi Steve,
I see you have two back-to-back questions. Based upon your setup and after reviewing the Yamaha owner’s manual for your particular AV receiver, the DSM4 would be a good start. It appears you are planning to connect three additional speakers for three zones. I would recommend using two of the MK690TTs for your side surround channels (channels 6 and 7 on your receiver). Connect the Speaker B output from the receiver to Source A of the DSM4 (which features dual source). Then connect channels 6 (right) and 7 (left) to Source B input. This will allow you to play your music through the three zones. In addition, you will have a choice of using the MK690TTs as the surround channels for your home theater (selecting Source B for Zone 4) or listening to the music you have selected for the rest of the house by selecting Source A for Zone 4. (We’ll discuss your speaker selection and placement in the second answer.) Please note that you may have to add an external amplifier to power the DSM4 speaker selector and to power the four zones to maximum levels. An excellent choice would be our AMP200 because it features both Hi Level (speaker level) and Signal level (pre-amp). In the case of your receiver, there are no full-range stereo pre amp outs on this receiver, but you could connect the Speaker B output to the AMP200 line 2 input (high level). A bonus would be a second source input with automatic switching (in this case line 1 input) which could connect to an iPod as an example. That way you would have second source available to play for three of your four zones at the same time as your home theater (pretty cool). You may still have to add a volume control for your fourth zone (the surround speakers) to make sure your system is impedance matched, especially if you do not upgrade to the external amplifier. I would be more than happy to provide a diagram outlining the whole system, but you need to contact me directly at Don't forget, we offer the CL3-rated in-wall approved speaker wire in both two and four conductor.


By Pete from puyallup, wa on June 4, 2012
I just built a deck with a roof over it. Its 14' by 35' the roof covers only 14' by 24'. I bought four in ceiling pyle weather proof pwrc81 and I have four pyle pdwr50w 6.5 speakers for the outside of the deck. With the DSM4 can you turn on 2 speakers at a time or 4 at a time or all of them if you wiish.
By Customer Service - Q&A on June 4, 2012

HI Pete:

The DSM4 should work just fine. Are you planning on using outdoor volume controls like our OVC300? The DSM4 has a protection switch internally so you do not need Impedance matching volume controls. However, they do provide additional control where your system is located, plus work a little better for the impedance matching. With the Volume Controls, you would defeat the internal protection of the Speaker Selector; and yes, you can play one, two, or even all four at the same time. You also have independent A/B switches per zone for dual source. You could play background music under the cover while listening to a ballgame with the patio speakers. It’s very flexible. We also have the CL3-rated speaker wire approved for in-wall installation and outdoor applications. Your best bet is to use 4- conductor from the amplifier to the speaker selector and then 4- conductor to the volume controls (if utilized) and then 2- conductor to the speakers themselves whether from the volume controls or directly from the speaker selector. Also, 16 gauge will work unless you are doing runs over 80 feet; then you need to go with 14 gauge. Good Luck!


By BRIAN from CT on November 29, 2011
By Customer Service - Q&A on November 29, 2011

The RMS would be approx. 140 - peak being 280

By DAVID POLZIN from Lakewood,Ca on February 18, 2012
w[l thisbox or any of your boxes support a 4 surround sound and a 4 speaker stereo systtem.
By Customer Service - Q&A on February 20, 2012

Hi David:

The key is the Surround system you either have or are looking to purchase. Many of the Audi/Video Receivers feature a second zone output so you can select a different source to play at the same time as your surround sound is active. You need to determine if the second zone output is a pre amp out (un-amplified) which means you would need an external amplifier (like our AMP200) before connecting to the DSM4 speaker selector. Or in some cases the second zone output comes from channel 6 and 7 of a 7.1 receiver that is only driving a 5.1 system. In this case you connect the DSM4 directly to channel 6 and 7 speaker outputs (amplifed). You would need to program the AVR to output these channels to a second zone. So yes this (DSM4) or any of our boxes will support your application, you just need to determine whether you need to add an external amplifier as well depending on the type of outputs from the AVR. And in case you have not yet purchased the AVR you will need to look for a receiver that features a true 2nd zone output.


Product Reviews

DSM4 Dual Source 4 Zone Speaker Selector High Performance with Amplifier Protection
4.5 Stars based on 11 Review(s)
Orlando, Fl.
5 Stars
I would recommend this item to a friend.

Love the 2 zone ability
December 30, 2016
On time arrival....great packaging and exactly as described / advertised !!

Sacramento, CA
4 Stars
I would recommend this item to a friend.

Worked fine for what I needed
January 24, 2016
I wanted to be able to switch 2 sets of speakers between 4 different inputs so went with 2 of these switches even though I am only using 1 output channel on each. They work fine...I also have the DSM 8 for a whole house system that has worked well too. The only issue is that the wiring terminals are very small and tight and require a bit of dexterity - hence the 4 stars. Be careful not to over tighten the small screws. It also makes it difficult if there is not much room behind the speaker switches. Otherwise everything works well. A nice touch is inclusion of small labels for the switches. FYI to OSD - a possible improvement would be some form of cradle or clamp to take the strain of the wiring off of the wiring terminals. OSD is a quality company. I have also had great experience with the AMP300 as well as some outdoor rock speakers. Any questions and they usually respond by email in a day or two.
Quality. Look and Feel. Flexibility of application. Size.
Tight wiring terminals.
Best Uses:
Speaker switching with or without remote volume controls.

United States
5 Stars
I would recommend this item to a friend.

works great for a reasonable price
January 25, 2014
The DSM4 works just like it was advertised. My wife is thrilled with being able to listen the TV in the kitchen or music if she chooses.
compact design
connectors and screws could be bigger

Columbus OH
5 Stars
I would recommend this item to a friend.

Exellent right out of the box.
May 28, 2013
Opened the box, wireed it up and it does exactly what I wanted it to do!

Boston, MA
4 Stars
I would recommend this item to a friend.

Works as advertised but . . .
May 8, 2013
This switch functions as advertised and is a good value for the money but . . . . you think they would have designed the connections with a better solution like banana terminals. The terminals are so small that you almost have to use a jewelers loop to see the ever so small screws which means a tiny screw driver to install. Then the terminal clips are so small and cheesy that it is easy to strip the threads.
Works just fine.
Terminal connections could be better.

North Carolina
5 Stars
I would recommend this item to a friend.

Easy to install and works just fine
May 1, 2013
With a very quick response from customer service, the installation of this box was very simple -- and it works just as I hoped it would. Instructions that came with it showed different connectors than actually on the box -- but customer service pointed me to a video on their website though shows how this different type of connector works.

Chicago, IL
4 Stars
I would recommend this item to a friend.

Quality Item
April 23, 2013
Easy to install. Works well as advertised. Speaker sound is excellent.

Naveen Chegondi
5 Stars
I would recommend this item to a friend.

Dual Source Outdoor speaker selector
April 7, 2013
This souce selector is very compact and very good in quality. I used this to select between my outdoor speakers and in home Bose celling speakers. I am very pleased with the performance. and the way it handles.

5 Stars
I would recommend this item to a friend.

Great product
June 26, 2011
Great product, great price, [...]. Will use again. Thanks.

5 Stars

I bought a speaker ...
April 21, 2011
I bought a speaker selector and a wall mount volume control. Both products were a bargain compared to other sites. I'd recommend OSD to anyone- and I will!

5 Stars

great deal would ...
April 13, 2009
great deal would definitely order from again.