Secure Checkout
We are shipping today , Free Shipping On Orders Over $50
Your Shopping Cart Is Empty

Secure Checkout

SKU: OSD-DSM4 Dual Source 4 Zone Speaker Selector, High Performance with Amplifier Impedance Protection - DSM4

Purchase Dual Source 4 Zone Speaker Selector, High Performance with Amplifier Impedance Protection - DSM4
  • SKU: OSD-DSM4 dsduso4zosps1

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

  • $59.99

    Compare at: $129.99 You Save $70.00

    Sorry, we are currently sold out of 'Dual Source 4 Zone Speaker Selector, High Performance with Amplifier Impedance Protection - DSM4'. Please check back later.

Calculate Shipping


Lifetime Tech Support

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.

Warning: California's Proposition 65


This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP) which is known to the State of California to cause birth defects or other reproductive harm. For more information go to

  • Speaker Selector Type: 4 Zone Dual Source Speaker Selector w/ Amplifier Protection
  • # of Zones or Speaker Pairs: 4
  • Dual Source per Channel
  • Power Handling w/ Protection Circuit OFF: 140W Per Channel
  • Power Handling w/ Protection Circuit ON: 70W Per Channel
  • Input Source: Up to 2 Amplifiers or Receivers
  • Speaker Impedance: 8 Ohms
  • Impedance Protection: Yes
  • Input/ Output Connector Type: Removable Spring-loaded Guillotine-style Push Terminals
  • Wiring Requirement: Up to 14 Gauge Wire
  • Dimensions (L x H x D): 6.5" x 1.93 x 4.4"
  • Weight: 2.5 lbs
  • Warranty: 2 Years
31 Questions asked on Dual Source 4 Zone Speaker Selector, High Performance with Amplifier Impedance Protection - DSM4

Customer Service • 12/17/2019, 2:17:43 PM
A Brian, The RMS would be approx. 140 - peak being 280 CL
DAVID POLZIN • 12/17/2019, 2:17:43 PM Q w[l thisbox or any of your boxes support a 4 surround sound and a 4 speaker stereo systtem. david
Customer Service • 12/17/2019, 2:17:43 PM
A 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. TL
Pete • 12/17/2019, 2:17:43 PM Q 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.
Customer Service • 12/17/2019, 2:17:43 PM
A 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! TL/MA
Steve Weston • 12/17/2019, 2:17:43 PM Q 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?
Customer Service • 12/17/2019, 2:17:43 PM
A 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. TL
Bill • 12/17/2019, 2:17:43 PM Q I hate to ask but no information mentions it and I can't tell by the photo. Are those volume controls next to the A/B switching per zone? Thanks, Bill
Customer Service • 12/17/2019, 2:17:43 PM
A Hi Bill Those are not volume controls but rather the zone selection (on/off). For volume controls, take a look at our SSVC4 dual source, which has volume control for each zone. CL/MA 1731