Bogen VAR1 Voice-Activated Relay (DPDT) for 70V Commercial Audio Systems, Priority Paging, and Two-Way Communication, Adjustable VOX Sensitivity and Delay, Black

The VAR1 intelligently detects audio activity from various inputs—including microphones, 600-ohm lines, or 25V/70V speaker lines—and activates its relay contacts to trigger external equipment or override existing audio channels.The adjustable VOX sensitivity allows installers to set the exact audio level required to trigger the relay, while the adjustable release delay ensures the channel remains active during natural pauses in speech, preventing annoying paging dropouts. It also includes a microphone pre-amp and a transformer-isolated audio output. The unit requires an external 12V to 24V DC power supply (not included)Key Features:Versatile audio detectionAdjustable VOX sensitivity to set the exact trigger threshold and an adjustable release delay Includes a built-in balanced, low-noise, high-gain microphone pre-amp with separate gain control, plus a transformer-isolated 600-ohm audio outputWorks seamlessly with both self-amplified and central-amplified paging systemsProvides both Normally Open (N.O.) and Normally Closed (N.C.) operationRated at 2A at 30V DC or 0.5A at 120V AC. (Requires external 12-24V DC power supply, sold separately). Specifications:Relay Type: DPDT (Double Pole Double Throw)Inputs Detected: Microphone, 600-ohm Line, 25V, 70VRelay Contacts: Two sets C-Form (N.O. and N.C.)Contact Rating: 2A at 30V DC; 0.5A at 120V ACVOX Sensitivity Range: 20 mV to 150 mVrms @ 600 ohmsRelease Delay Range: 0.25 to 25 secondsMic Pre-Amp Gain: 62 dBLine Input Impedance: 600 ohms70V Input Impedance: 200k ohms25V Input Impedance: 75k ohmsPower Requirement: External 12V to 24V DC @ 100 mA (Sold Separately)Dimensions: 5.38" W x 3.88" H x 1.39" DWeight: 1 lb.

• Versatile audio detection: The DPDT relay activates upon detecting audio activity from multiple input sources, including microphone, 600-ohm line, 25V, and 70V inputs, making it ideal for priority paging and emergency announcements
• Precision control: Features adjustable VOX sensitivity (20 mV to 150 mVrms) to set the exact trigger threshold and an adjustable release delay (0.25 to 25 seconds) to prevent audio dropouts during pauses in paging
• Audio interface: Includes a built-in balanced, low-noise, high-gain microphone pre-amp with separate gain control, plus a transformer-isolated 600-ohm audio output for integrating additional equipment
• System compatibility: Designed to work seamlessly with both self-amplified and central-amplified paging systems, featuring an input source selector switch for Mic or Line level signals and a visual LED status indicator
• Robust switching capability: Provides two sets of C-form relay contacts offering both Normally Open (N.O.) and Normally Closed (N.C.) operation, rated at 2A at 30V DC or 0.5A at 120V AC. (Requires external 12-24V DC power supply, sold separately)