SKU: OSD-ISS8
OSD ISS88x Zone High Power Speaker Selector with Impedance Protection and Easy Input/Output Connectors
The ISS8 High Power Speaker Selector is an easy and effective way to distribute music to up to eight listening zones (four pairs of speakers) and play any pair, a combination of pairs, or all pairs simultaneously. Easy to connect with a low-profile design that easily fits into a cabinet or equipment rack.n choose. Front-panel push buttons let you quickly turn each pair of speakers on or off independently, and die cut labels fit within the recessed area on the buttons for easy labeling of each zone. A passive device that does not require power to operate, the ISS8 also includes impedance-matching circuitry so you can safely drive all eight pairs at once without damaging your receiver or amp. Designed with quality in mind, the ISS8 is constructed of 16-gauge steel with a durable black powder coating and gray silk-screening.
Features
- Distributes audio from a receiver or amp to multiple pairs of speakers
- Send one signal to up to four pairs of speakers in different listening zones
- Impedance protection allows a single amplifier to safely power multiple speakers
- Removable input/output connectors allow easy cable termination
- Includes on/off switches for each zone
- Low prolife with beautiful black brushed aluminum finish
- Works with any amplifier
- Includes a two-year warranty
Upgraded Input/Output Connectors
The ISS8 is easy to install (even for non-technical types) and accepts up to 14-gauge cable. The European-style input/output connectors are removable, which gives you better leverage when terminating cable than traditional spring-loaded terminals. This speaker selector takes either four or two conductor speaker wire stripped at the ends that are inserted into the screw-down input/output terminals for a tight fit to ensure the best signal transmission and sound quality possible.
Protecting Valuable Audio Equipment with Impedance Protection
When connecting multiple speakers to a receiver or amplifier, you need to stay above the amp's minimum load requirements. Going below the impedance rating can overheat or even damage expensive equipment. The ISS8 includes selectable impedance matching protection circuitry that allows a single amplifier to safely power several pairs of speakers. The speaker selector handles 140 watts per channel total input power without the manual protection engaged and 70 watts per channel with the protection engaged.
Warning: California's Proposition 65
Warning:
This product can expose you to chemicals, including vinyl chloride, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
- Speaker Selector Type: 8 Zone Single Source Speaker Selector
- # of Zones or Speaker Pairs: 8
- Single Source
- Power Handling: 140W Per Channel
- Input Source: Single Amplifier or Receiver
- Speaker Impedance: 8 Ohms
- Impedance Protection: Yes
- Input/ Output Connector Type: Spring-loaded Guillotine-style Push Terminals
- Removable Input/ Output Connectors Allow Easy Cable Termination
- Wiring Requirement: Up to 14 Gauge Wire
- Includes On/ Off Switches for Each Zone
- Dimensions (L x H x D): 17" x 1.75" x 4.5"
- Weight: 6 lbs
- Warranty: 2 Years
View Owner's Manual
30 Questions asked
Have a Questions?
What's on your mind?
Chad • 12/17/2019, 2:17:43 PM
You list the ISS8 as capable of handle 140 watts RMS "per" Channel if no load balancing. So the unit is capable of 8 x 140 watts = 1120 watts/channel in aggregate input. Within that, is it a HARD limit PER CHANNEL of 140 watts if only a few channels are used? For example, if I was NEVER going to use more than 2 channels (2 Pairs of 8 Ohms speakers), could this unit handle 400 watts RMS PER Channel being fed to it from a High Current Amp? Assume two pair of SAME speakers, so the LOAD would be IDENTICAL and evenly distributed on each pair. 400/2 = 200 watts to speaker channel on selector 1, 200 watts to speaker channel on selector 2. This exceeds the 140 watt per channel spec, but is well under the 1120 watt aggregate input I could feed if I had 8 identical pairs running x 140 watts/channel number.
Customer Service • 12/17/2019, 2:17:43 PM
Hi Chad:
The ISS8 Speaker Selector is rated at 140 watts a channel with the Protection switch disabled, so it is a straight wire connection where all your speakers attached are in parallel. So when you disable the protection (and are planning to play more than 2 zones at a time, you will need an Impedance matching Volume Control per each zone to provide more comprehensive protection for your Amplifier because it is adjustable based upon how many speakers you have attached. But what you are not telling me is what High Current Amplifier are you connecting to a 39.00 dollar speaker selector? In reality, we do not recommend using anything more powerful than our AMP300 and making sure the customer is using the Impedance matching volume controls rather than the internal protection. And I typically recommend stepping up to the DSM8 (same rating) but the protection switch is hidden, on the back panel and you also have dual source A/B switch for each zone so you could play Source A for Zones 1-4 and Source B for Zones 5-8 or any combination. If you can not run Volume Controls and look for a higher rated speaker selector check out the TSM8 which uses Transformers internally for protection versus Resistors featured in the ISS and DSM series. It also features a protection switch where you select the number of speakers you will need to protect. There is a reason it is three times the cost of the ISS8.
Good luck, tim@osdaudio.com
TL/5364
Ric • 12/17/2019, 2:17:43 PM
can this unit be rack mounted? if so, are rack ears available or can i use generic ones? based on the pic, it appears there may be screw holes for rack ears. thanks in advance.
Customer Service • 12/17/2019, 2:17:43 PM
Hi Ric:
OSD based in Brea, CA. The ISS and DSM (6 and 8 zones) series do not come with Rackmounts but appear to have holes available. You will need to call customer service to verify if they have a set of rack ears that will fit these units. 562-697-2600, Customer Service/Sales.
TL/5443
Wayne Powell • 12/17/2019, 2:17:43 PM
Can I run an impedance matching speaker selector switch even if I have impedance matching volume controls in each room/zone ? Is there any harm in doing so ? These are OSD volume controls Transformer type. Running 10 speakers total. Thanks.
Customer Service • 12/17/2019, 2:17:43 PM
Hi Wayne:
Typically the best choice for Protection your Amplifier/Receiver is the Impedance Matching Volume Controls. So if you are utilizing the Volume Controls with a Speaker Selector featuring an internal protection circuit like our ISS and DSM series you need t make sure the Protection is turned off or disabled. The ISS series has the button on the front panel (on/off) and the DSM series placed on the back panel where you would be less tempted to activate by mistake (the DSM series also features Dual Source per zone, A or B). You would use the Impedance matching protection if you were not utilizing Impedance Matching Volume Controls. Note when you use the protection switch on the ISS and DSM series you cut the power handling per channel in half (140 watts to 70 watts). So in your application, you will want to disable the protection switch. The ISS and DSM series utilize Resistors for the protection. We do also have our TSM series which features selectable Impedance Matching Protection based upon how many speakers are connected to the Speaker Selector. The two Selector (TSM8; eight zones and TSM12; twelve zones) feature internal Heavy Duty Transformers for protection. This is our best option when not utilizing Impedance Matching Volume Controls. We also feature Speaker Selectors with internal Impedance Matching Volume Controls, our SSVC series. There are four models (1, 2, 4 and 6 Zone versions). Here the Impedance Matching Volume Controls do the protection. One last Speaker Selector, the ATM7 features a wireless IR Remote control but no internal protection circuit so you would need to add an Impedance Matching Volume Control for each zone you connect. One other note in regards to the Impedance setting on the Volume Controls themselves. Most feature a choice of 1/2X, 4X and 8X settings (our VSM slider series adds a 16x setting). These numbers refer to the number of 8-ohm speakers you have in total connected in parallel to the Speaker Selector. There are other factors in more advanced applications, but this covers the basics.
Regarding your question; Is there any harm in doing so? Yes, we call it double dipping, not a good idea.
Questions; tim@osdaudio.com
Good luck
TL/5463
Wayne Powell • 12/17/2019, 2:17:43 PM
Can I run an impedance matching speaker selector switch even if I have impedance matching volume controls in each room/zone ? Is there any harm in doing so ? These are OSD volume controls Transformer type. Running 10 speakers total. Thanks.
Customer Service • 12/17/2019, 2:17:43 PM
Hi Wayne:
Do not use the internal protection for the Speaker Selector. The Impedance Matching Volume Controls will do the heavy lifting. Make sure the button on the front panel (ISS Series) is left out. The Impedance matching is your best option for protection if available. And it sounds like you have already gone that direction. Adding the security at the Speaker Selector will cause issues (we refer to it as double dipping, a no-no).
TL/5463
Larry • 12/17/2019, 2:17:43 PM
I have a tight area where my receiver is located and want to drive 8 speaker pairs. Can I locate an AMP 300 and ISS8 50 feet away in a closet?It would be much easier to manage the speaker connections in a closet than the tight area near the receiver.
Customer Service • 12/17/2019, 2:17:43 PM
Hi Larry:Yes, you can locate the AMP300 and your speaker selector in the closet some 50 feet away as you described. Two things to consider for your application. First, are you using individual Impedance Matching Volume Controls for each pair of speakers? If so than the ISS8 will work fine. You will need to make sure not to use the internal protection on the front panel of the ISS8. The Impedance Matching Volume Controls provide the best protection for your system. If you have no Volume Controls than I suggest stepping up to the TSM8 speaker selector which features the optimum internal protection utilizing heavy-duty Transformers. The Amplifier Protection is selectable depending on how many speakers you would typically listen to at once. The Control Knob is on the back panel. The second consideration for your application is the signal cable you will need to connect the Receiver and Amplifier. You will need a CL2/3 Certified cable for in the wall installation.TL/5641