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Audio Trigger Circuit Speaker Input = Control Volts Output Level Sensing Switch
Audio Trigger Circuit Speaker Input = Control Volts Output Level Sensing Switch
Audio Trigger Circuit Speaker Input = Control Volts Output Level Sensing Switch
Audio Trigger Circuit Speaker Input = Control Volts Output Level Sensing Switch

Audio Trigger Circuit Speaker Input = Control Volts Output Level Sensing Switch

$ 17.16

Availability: 75 in stock
  • Model: N-902
  • Brand: Navone Engineering, Inc.
  • Return shipping will be paid by: Buyer
  • Modified Item: No
  • Condition: New
  • Restocking Fee: No
  • Country/Region of Manufacture: United States
  • MPN: N-902
  • Refund will be given as: Money Back
  • Item must be returned within: 30 Days
  • All returns accepted: Returns Accepted

    Description

    N-902 AUDIO AUTO-TRIGGER CIRCUIT
    The N-902 Audio Auto Trigger Circuit was designed to sense the presence of a low level audio signal feeding a loudspeaker or headphones. When a signal is detected, the N-902 produces an output Voltage that can activate a relay or turn on a component. This output will stay on for around 15 seconds after the input signal is dropped.
    Great for home, portable, pro, and car audio systems. Yes, the N-902 will produce a Control Voltage from the headphone output of an iPhone, Smart Phone, iPad, etc.
    The output of the N-902 supplies +12 Volts DC (actually anything from +9 Volts up to +20 Volts DC works just fine) to activate aftermarket automotive audio components, or home audio relay.
    If your vehicle has a factory type OEM deck / source unit that does not have an electric antenna control lead or other turn-on/off control Voltages, the N-902 can be connected across any speaker in the system to activate relays, components, lights, etc.
    The N-902 works by sensing 100mV or so of speaker Voltage from the terminals of any active speaker or speaker leads.  When the speaker Voltage is present, the circuitry activates and +12 Volts DC is produced on the GREEN wire.
    Wiring Instructions:
    Connect the RED wire to +12 Volts DC Accessory (Fuse at 2 Amps.) A 120 Volt AC to 12 Volt DC "wall wart" power supply works fine.
    Connect the BLACK wire to the Chassis Ground (Negative Supply).
    Connect the Paired CLEAR wires to the + and – terminals of any active speaker. (Polarity is not important.)
    The GREEN wire is the +12 Volt DC Output and should be connected to the Turn-On/Off lead of your aftermarket amplifier, equalizer, etc.
    The Blue LED indicator on the top of the plastic enclosure will illuminate when the N-902 is triggered. Notice that there is a delay to account for lapses in spoken word and musical passages.
    The N-902 measures 2" x 1.5" x 1".