Filters
Product Search

    Secure Checkout
    Your Shopping Cart Is Empty

    Secure Checkout

    SKU: BSTK-ISS4

    BSTK ISS44x Pair High Power Speaker Selector with Impedance Protection and Easy Input/Output Connectors

    Open Box
    Purchase Open Box - 4x Pair High Power Speaker Selector with Impedance Protection and Easy Connectors - ISS4
    • Outdoor Speaker Depot SKU: BSTK-ISS4 ishipo4pasps
    • In Stock

      $38.59

      Compare at: $58.84
      You Save: $20.25

    • Countdown Truck
      FREE Delivery by Tuesday, Apr 8
      Order within hours and minutes
      Change Shipping Zip 43017? $50+ Free Shipping (Exceptions Apply)
      More Delivery Options
      Estimated Arrival
      Estimated Cost
      April 08
      $43.80
      UPS 3 Day
      April 07
      $50.47
      UPS 2nd Day Air
      April 04
      $91.25
      UPS Next Day Air Saver
      April 04
      $100.38
      UPS Next Day Air
      Finalize delivery options at checkout

      Arrival dates and shipping costs shown above are estimates.  See exact dates and costs and select preferred shipping option during checkout.

    Lifetime Tech Support

    Guarantee

    Lifetime Tech Support

    Uncover unbeatable value with our Open Box item—rigorously inspected, quality-assured, and performance-tested for an exceptional audio experience. Take advantage of this excellent deal, where a minor packaging imperfection translates into a significant discount on your premium Outdoor Speaker Depot product.

    The ISS4 High Power Speaker Selector is an easy and effective way to distribute music to up to four 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 ISS4 also includes impedance-matching circuitry so you can safely drive all four pairs at once without damaging your receiver or amp. Designed with quality in mind, the ISS4 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 profile with beautiful black brushed aluminum finish
    • Works with any amplifier 
    • Includes a two-year warranty
    Upgraded Input/Output Connectors
    The ISS4 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 ISS4 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: 4 Zone Single source Speaker Selector
    • # of Zones or Speaker Pairs: 4
    • 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): 8.5" x 1.75" x 4.5"
    • Weight: 3 lbs
    • Warranty: 2 Years
    We're currently collecting product reviews for this item. In the meantime, here are some reviews from our past customers sharing their overall shopping experience.
    4.8
    Out of 5.0
    A graph showing this site's review totals.
    Overall Rating
    97%
    of customers that buy
    from this merchant give
    them a 4 or 5-Star rating.
    Verified Buyer
    April 1, 2025 by Frank (United States)
    “straight forward , the process was nice and easy”
    Verified Buyer
    March 31, 2025 by Rob (United States)
    “very nice”
    Verified Buyer
    March 29, 2025 by SEAN (Pennsylvania , United States)
    “Great amp! Only issue experienced was post purchase signature required for delivery. The need for signature delivery should be made clear prior to shipping so customers can make an informed decision.”

    No Questions asked yet!


    mgctlbxN$MZP mgctlbxV$5.3.7 mgctlbxL$C mgctlbxP$miva
    Support
    Contact Form
    Knowledge Base
    Help Center
    Search Knowledge Base
    Help Center
    Open in Help Center
    Help Center
    Search Knowledge Base
    Search Results
    Contact Form
    Send us your message privately
    Subject
    Description
    Full Name
    Reason for your ticket
    Email
    Product Name
    Invoice/Order #