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Small black preamp microphone with RCA output and DC power supply

VideoSecu

VideoSecu MIC09K Preamp Microphone A91 with Power Supply

SKU CH-7XZX-ZGP74

High-sensitivity preamp microphone adds RCA audio capture to CCTV systems with 60–1600 sq ft monitoring range and included DC power supply

  • Specifications•RCA for audio output •2.1mm center + DC plug for power inpu
  • Features•Super high sensitive preamp mini microphone for capturing a
  • Package Contents(1) Mini Microphone, (1) Power Supply and (1) Security Warni
  • High-sensitivity preamp captures clear audio evidence
  • Built-in preamplifier IC boosts low microphone voltage to usable level
  • Low-noise circuit with auto level adjustment ensures clean recordings
  • RCA output and 2.1mm DC power input simplify CCTV integration
  • Adjustable monitor range covers 60 to 1600 square feet

Preamp microphone for CCTV audio

The VideoSecu MIC09K adds audio pickup to a security camera system with a built-in preamplifier IC that raises the microphone's low output voltage to a stronger, more usable level. It covers a monitor range of 60sqf to 1600sqf and operates on a DC 6V to 12V supply drawing 20mA. The frequency response spans 300 to 5kHz with an output level of 0 to 6V. A power supply and a security warning decal are included in the box.

RCA output and 2.1mm DC power input

Audio leaves the unit through an RCA connector while power enters via a 2.1mm centre-positive DC plug, so the microphone can be wired directly into most DVR or NVR audio inputs and a standard low-voltage supply. The on-board preamp circuit provides low noise, high gain and automatic level adjustment, reducing the need for extra gain staging at the recorder. Its compact form factor allows discreet placement near the camera without a separate preamp box.

Upgrades cameras that lack built-in audio

This microphone replaces the absence of sound capture on video-only security cameras, supplying evidence-grade audio where the recorder has an RCA audio input and a 6V to 12V DC source is available. It is not suited for installations that require wireless audio transmission, IP-networked microphones, or coverage beyond the stated 1600sqf range. Buyers needing multiple audio zones or digital audio protocols should look elsewhere.

Highlights

  • High-sensitivity preamp captures clear audio evidence
  • Built-in preamplifier IC boosts low microphone voltage to usable level
  • Low-noise circuit with auto level adjustment ensures clean recordings
  • RCA output and 2.1mm DC power input simplify CCTV integration
  • Adjustable monitor range covers 60 to 1600 square feet

Specifications

BrandVideoSecu
ModelMIC09K
Specifications•RCA for audio output •2.1mm center + DC plug for power input •Monitor range: 60sqf - 1600sqf •Frequency range: 300 - 5kHz •Current consumption: 20mA •Output level: 0 - 6V •Power supply: DC 6V - 12V
Features•Super high sensitive preamp mini microphone for capturing audio evidence •With preamplifier IC built on board, it increases a microphone's low output voltage to a stronger more usable level •Low noise, high sensitive, high gain and auto level adjustment on-board preamp circuit
Package Contents(1) Mini Microphone, (1) Power Supply and (1) Security Warning Decal

Questions about this item

What audio connector does the MIC09K use and what voltage does it output?

The MIC09K uses an RCA connector for audio output and delivers an output level of 0 to 6V, suitable for direct connection to CCTV camera audio inputs.

What power connector and voltage range does the microphone require?

It needs a 2.1mm centre-positive DC plug and accepts any supply between DC 6V and 12V, drawing only 20mA.

How do I connect the power supply to the MIC09K without reversing polarity?

Plug the supplied power supply into the 2.1mm centre-positive DC jack on the microphone; the centre pin is positive, so match the adaptor tip accordingly.

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