Henry Engineering Autoswitch - Audio Switcher and Silence Sensor

Henry Engineering Autoswitch - Audio Switcher and Silence Sensor

Henry Engineering Autoswitch - Audio Switcher and Silence Sensor

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Henry Engineering AS overview

  • 1Description

The Autoswitch from Henry Engineering is designed for two purposes - to eliminate digital echo in DJ headphones caused by digital audio processing, and to prevent dead air by switching to an alternate audio source in the event that the main air feed fails. The unit can be set to manually or automatically select between two stereo audio sources.

The Autoswitch offers two sets of stereo inputs and one stereo output on phoenix connectors, as well as a phoenix connector for control interface. When interfaced to a console's mic-tall logic, the unit will sense when the mic is on and switch to a local source to eliminate headphone echo. The two adjustable silence sensors will trip if the main audio source level drops below the pre-set threshold and switch to a backup audio source. When the main level returns, the unit automatically switches back.

A built-in alarm relay output can be used to activate an external alarm or other equipment. LED indicators show which source is active, and whether or not either channel is below the silence threshold. If desired, the silence sensors and alarm relay can be disabled for manual control. Gain trims are provided for adjustment of audio levels.

1/3 rack space steel unit
Eliminates digital echo in DJ headphones
Automatically switches to secondary audio source if main feed drops below a pre-set level
Phoenix-type connectors for input, output, and control
Two adjustable silence sensors automatically switch back and forth between primary and secondary audio sources when pre-set levels are crossed
Alarm relay output activates an external alarm or other equipment
LEDs show which audio source is active, when a source is below silence threshold, and when a silence sensor has tripped
Gain trimmers for precise audio adjustments
UPC: 837654309056
In the Box
Henry Engineering Autoswitch - Audio Switcher and Silence Sensor
  • 5 Year Limited Warranty
  • Table of Contents
    • 1Description

    Henry Engineering AS specs

    Input Level -10 to +4 dBu
    Input Impedance 10 k ohms Balanced
    5 k ohms Unbalanced
    Output Level +4 dBu Nominal
    +24 dBu Max
    Output Impedance 600 ohms or Higher, Balanced
    Gain -6 to +6dB
    Frequency Response DC-20kHz, +/-0.25dB
    Distortion < 0.01%
    Noise > 90dB Below +4 dBu Output
    Control Input Maintained Contact Closure or 5-24VDC
    Silence Sense Level 10 to 40dB Below Normal Level
    Alarm Time Delay 3 to 35 seconds in 2 Ranges
    Alarm Relay Output Dry Contacts, SPDT, 24VDC, 1A Max
    Power Requirements 115/230VAC, 50-60Hz, 3W
    Dimensions (WxDxH) 5.75 x 5.5 x 1.6" (146 x 140 x 41 mm)
    Weight 3 lbs (1.36 kg)
    Packaging Info
    Package Weight 2.26 lb
    Box Dimensions (LxWxH) 9.0 x 7.0 x 2.0"

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