Niles Audio SAS-1 Combination Speaker-Level A-B Switching System
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Niles Audio SAS-1 Combination Speaker-Level A-B Switching System

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Audio, Video or Voltage-triggered Switch System Replaces Manually Operated A-B Switches
  • Audio power handling: 600W per channel
  • Capable of switching speaker-level, line-level audio, and composite video signals
  • May be configured to use any of three trigger signals: audio, video, or voltage
  • Exclusive signal-detection circuitry ensures reliable operation
  • Control input for voltage activation (5V-30V AC/DC at 20mA)
  • 12Volt control output for activating other Niles Audio devices such as a SPK-1, AVS-2, AC-3, APC-2 or RFS-1
  • Normally Open (N.O.) relay contacts for controlling devices such as electric screens, lifts and drapes
  • Relay contacts rated at one amp, 30V max., AC/DC
  • Premium gold-plated RCA connectors and five-way, nickel-plated binding posts

Item #: 6726

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$264.95
  • Details
  • Specs
  • Reviews
  • The Niles Audio SAS-1 Combination Speaker-Level A-B Switching System designed to replace manually operated A-B switches. It automatically switches from A to B when a signal is present at its B input. The unit's three switching sections can switch three different kinds of signals: Line-level audio, composite video and speaker level audio. The SAS-1 switches each of these sections at the same time, allowing simultaneous control of these signals if needed. Five-way speaker wire binding posts are provided for the speaker level switching and RCA-type phono jacks are provided for the line-level audio/video switching.

    Application Examples:
    • Automatically switch a pair of speakers between a receiver and a television
    • Turn a Surround Sound system on automatically

    There are two ways to trigger the SAS-1 switch: a signal sensing mode (1) and a voltage control mode (2).
    • In the signal sensing mode, the SAS-1 automatically switches from A to B when a signal is present at input B. A sensitivity control is provided for setting the amount of input level (trigger threshold) needed to activate the switch. The B input will have priority as long as a signal remains at its input. Depending upon the setting of the delay control, the unit switches from B back to A anywhere between 1/4 of a second to 30 seconds after the trigger signal (input B) is removed. The SAS-1 can be programmed to trigger from the speaker-level, line-level or video sources. At DIP switch is provided for the programming.
    • In the voltage control mode, applying 5 to 24 volts AC or DC to the control input connector will trigger the SAS-1 to switch. There are several ways this feature can
      be used:
      • An included wall mount, 16Volt AC transformer (Part# XF00008) can be used as the control voltage source. Plugging the AC transformer into the switched AC outlet of an AM/FM receiver will trigger the SAS-1 to switch every time the receiver is turned on.
      • A toggle switch wired between the output of the AC transformer and the 'Control IN' jack can be used as a manual trigger.
      • Any voltage source between 5 to 24 Volts AC or DC can be used to activate the SAS-1. For example, a 12Volt control signal from a home automation system can trigger the SAS-1.
    • A control output connector is also provided. It has four screw terminals and provides two different outputs. Two of the terminals provide a set of normally open, dry relay contacts and the other two provide 12Volt DC output. The set of dry contacts 'close' whenever the switching section of the SAS-1 is activated. They will remain 'closed' as long as the signal that triggered the SAS-1 is present. Depending on the setting of the delay control, they will 'open' anywhere between 1/4 of a second to 30 seconds after the signal that triggered the SAS-1 is removed. With this feature, the SAS-1 can activate television lift systems, operate electric projector screens, control lighting systems, etc.
    • The 12Volts DC is present at the other two terminals whenever the switching section of the SAS-1 is activated. Depending on the setting of the Delay Control, the voltage turns off anywhere between 1/4 of a second to 30 seconds after the signal that triggered the SAS-1 is removed. This feature is provided as an interface when using the SAS-1 to control other Niles switching devices such as the AVS-2, SPK-1 and AC-3.

  • Speaker Level Power Handling: 600 Watts channel continuous (RMS)
    Control Voltage Output: 12Volts DC at 400 milliamperes (.4 Amp)
    Dry Relay Contact Rating: Maximum of 28Volts DC at 1 Amp
    Minimum Trigger Levels: 15 MV line-level, .1 Watt speaker-level
    Delay Control Range: Adjustable from 1/4 of a second to 30 seconds
    Frequency Response: FLAT from 20 Hz to > 20 Khz
    Signal to Noise Ratio: > 90dB, 1Volt reference
    Crosstalk: -70dB at 20 Khz
    Total Harmonic Distortion: Less than .01%, 20 Hz to 20 Khz at 1Volt reference
    Connectors: RCA type phono jacks and five-way speaker wire binding posts
    Power Requirements: Wall-mount AC transformer supplied with unit
    Overall Dimensions: 6-13/16" wide x 3-1/8" high x 5-5/16" deep
    Weight: 1-3/4 lbs
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