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CAD Audio 631L omnidirectional dynamic handheld microphone with thumb talk switch and coiled cable

CAD Audio

CAD Audio 631L Omnidirectional Dynamic Microphone with Talk Switch

SKU CH-FX7C-ZBK31

A handheld dynamic microphone with omnidirectional pickup and a thumb-operated talk switch for clear voice capture in noisy environments

  • 360-degree noise cancellation minimises background sound
  • omnidirectional pattern captures voice from any angle
  • dynamic cartridge resists moisture and temperature extremes
  • soft lip guard ensures consistent close-talk spacing
  • DPDT thumb switch provides reliable push-to-talk control

Close-Talk Microphone for Noisy Installs

The CAD Audio 631L is a handheld dynamic microphone built for voice communication where background noise is a problem. Its omnidirectional pattern provides 360-degree noise cancellation and a frequency response tailored for clear, intelligible speech. A soft lip guard ensures consistent close-talk spacing. The high-impact Cycolac body resists moisture, temperature extremes and common chemicals.

Simple Wiring with Unterminated Leads

The microphone ships with a permanently attached, heavy-duty four-conductor coil cord with two shielded conductors left unterminated for direct wiring. A built-in DPDT thumb switch is factory wired normally open for push-to-talk operation. No soldering to the capsule is required, but installers must terminate the bare leads to their specific connector or terminal block. The coil cord stretches for flexible positioning but retracts to a compact length.

Suited for Fixed Voice Stations.

This unit suits dispatch consoles, intercom systems, security checkpoints and industrial paging where hands-on push-to-talk control and extreme noise rejection are priorities. It is not intended for music capture, podcasting or broadcast applications that demand a flat response or cardioid polar pattern. Buyers needing a USB output, stand mounting or phantom-powered condenser sensitivity should look elsewhere.

Highlights

  • 360-degree noise cancellation minimises background sound
  • omnidirectional pattern captures voice from any angle
  • dynamic cartridge resists moisture and temperature extremes
  • soft lip guard ensures consistent close-talk spacing
  • DPDT thumb switch provides reliable push-to-talk control

Specifications

No published specifications for this item yet.

Questions about this item

How do I confirm the 360-degree noise cancelling is active once I connect the 631L?

Speak close to the lip guard while background sound plays; the dynamic cartridge should reject off-axis noise and deliver clear voice output when the thumb switch is held.

What comes with the 631L and what must I source separately?

The microphone includes a permanently attached four-conductor coil cord with two shields; you will need a compatible low-impedance input or adapter to terminate the unterminated leads.

Which version of the 631L should I choose for push-to-talk operation?

This model is factory wired normally open with a DPDT thumb switch, making it the correct choice for momentary push-to-talk use in dispatch or paging systems.

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