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SKU: OSD-DSM8 Dual Source 8 Zone Speaker Selector, High Performance with Amplifier Impedance Protection - DSM8

Purchase Dual Source 8 Zone Speaker Selector, High Performance with Amplifier Impedance Protection - DSM8
  • SKU: OSD-DSM8 dsduso8zosps

    Dual Source 8 Zone Speaker Selector, High Performance with Amplifier Impedance Protection - DSM8

  • $69.99

    Compare at: $179.99 You Save $110.00

    Please Note: 'Dual Source 8 Zone Speaker Selector, High Performance with Amplifier Impedance Protection - DSM8' is currently low in stock.

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Speaker selectors like the DSM8 allow you to distribute an amplified signal to multiple zones throughout the house without losing audio quality. These units also have manually activated impedance-protection circuits that protect your amps or receivers from low impedance levels as you add more speakers to each zone. With independent a/b switches per zone, the DSM8 dual source 8-zone speaker selector lets you input two music sources, for instance, iPhone library and satellite radio, and choose which source will play in a designated zone. Keep in mind that playing different sources in different zones at the same time requires separate amps or receivers to power those sources. The a/b switches are a convenient way to switch from source 1 (amp A) to source 2 (amp b).

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: 8 Zone Dual Source Speaker Selector w/ Amplifier Protection
  • # of Zones or Speaker Pairs: 8
  • 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
  • Manual Impedance Protection Switch
  • 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: 4 lbs
  • Warranty: 2 Years
16 Questions asked on Dual Source 8 Zone Speaker Selector, High Performance with Amplifier Impedance Protection - DSM8

CHRISTOPHER B KELLER • 04/26/2020, 8:39:52 AM Q I'm trying to replace a Russound ST2 Smart Tuner to go with much Russound CAV 6 MULTIZONE CONTROLLER for my house. Will this item work?
Customer Service • 04/27/2020, 3:39:22 PM
A Hi Christopher: This is not what you are looking for unless you are replacing your Russound CAV 6 Multi-zone Controller. We will have a product to replace the Multi zone controller the NERO MAX-12 but will not be available for two more months. If you are looking for a unique source replacement for your tuner then check out the SRT-1 and SRT-4 on our OSD Audio Premium website: These will plug and play with your system. MIVA TimL/4-27-2020
Henry • 12/17/2019, 2:17:43 PM Q How to connect the subwoofer output from a receiver to this selector?
Customer Service • 12/17/2019, 2:17:43 PM
A Hi Henry: Most Receivers only feature Pre-amp subwoofer output which needs to be connected to an external amplifier or a Powered Subwoofer. We would need additional information on what your application, so we can understand why you want to connect your subwoofer to the DSM8. TL
Ian V • 12/17/2019, 2:17:43 PM Q Is there a remote that controls this unit?
Customer Service • 12/17/2019, 2:17:43 PM
A Hi Ian, This unit does not include a remote. However, we do have a 7-zone speaker selector, the ATM-7, with remote. It is a single source, unlike the DSM8. CL/MA 1313
Matt • 12/17/2019, 2:17:43 PM Q I have an Onkyo 616 receiver that I will be using to power a 7.2 outdoor surround sound system in my 5500 sq/ft backyard. I already have seven RS800 rock speakers from you guys for this. In addition, I will also be powering 8 additional speakers in different zones of the backyard. My plan was to buy AMP200 to power the 4 pairs of speakers, and an SMP250 to power 2 8 ohm outdoor subwoofers. My two subwoofers are going to be on opposite sides of the outdoor theater and I will need a way to control the volume levels of the subwoofers to allow proper integration. If I was using the SMP250 to power the two subwoofers I don't think I would be able to control the levels of the subwoofers independently of each other which is where I think the DSM8 would come in. Could I run both amps to the speaker selector and control the levels to the 4 pairs of speakers and 2 subs? In a somewhat related question, if one pair of the speakers ran by amp200 was with the center channel of the 7.2 system would the sound from each speaker be ouptut without any delay in sound? Hopefully that makes sense. In other words, would the center channel being powered by the onkyo receiver be ouptut at the same time as the two speakers being powered by AMP200. I don't think that the amp200 powered speakers would add to the center channel volume because they would be played in stereo fashion instead of integrated into the 7.2 system. How would I increased the volume by the center channel during movies without just increasing the gain in the Onkyo 616 of the center channel? Thanks.
Customer Service • 12/17/2019, 2:17:43 PM
A Hi Matt, Subwoofer location will take some experimentation to find the ideal spot for the maximum bass for your prime viewing/listening area. Try and find a prime location with a single amp first but keep in mind that the best way to get more control over each subwoofer is to purchase a Subwoofer Amplifier for each. Regarding the other speakers for your spacious backyard, we recommend adding an outdoor volume control for each pair of speakers and using a DSM4 speaker selector to connect the four pair of speakers connected to the Onkyo with the AMP200 on Zone number 2. Your other choice is to connect the AMP200 to a SSVC4 speaker selector with the Volume Controls built in so you can do your impedance matching while also controlling all four zone volumes from a central location. There is no dedicated center channel pre-amp out for the Onkyo so we’re not sure you will be able integrate it with your second zone stereo outputs. We assume you will just be adding fill when selecting the second zone. You should not experience any latency between the 7.2 surround sound and Zone 2 simulated stereo surround, but that is a question for ONKYO. TL/MA 1819
SAL • 12/17/2019, 2:17:43 PM Q can i connect this to a onkyo 2 channel amplifier to get better sound to my 6 speaker zones cause im having to raise the volume controls all the way up to get good sound
Customer Service • 12/17/2019, 2:17:43 PM
A Hi Sal, It isn't recommended because that receiver is only built to handle a pair of 8ohm speakers. If you add more than a pair, you'll be lowering the impedance to 4ohms, 2ohms and below. Even with the impedance protection of the speaker selector, the receiver will still see an unstable load. What you would need to provide ample power to your 6 zones would be our AMP200 or AMP300. Each of these can be used in line with speaker selectors. Let us know if you have questions. Thanks! BM 2736