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Applied Microphone Technology 404

Pricing & Availability

  • MSRP: $299


404 Documentation

CardioidApplied Microphone Technology 404

Cardioid Pencil Condenser Microphone

The AMT is a transformerless FET condenser mic in traditional pencil-mic form factor. It has a fixed cardioid pickup pattern, although the cardioid capsules can be detached from the preamplifier body.

The mic has no high-pass filter or pad.

The 22mm microphone capsule most likely houses a ~17mm diaphragm, similar to the MXL 603S/604 and other mics listed in the sidebar.

The AMT404 ships in pairs with mic clips in a hard-shell carrying case.

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Pickup Patterns Pads & Filters
Cardioid (14 mV/Pa; 50 - 20,000 Hz)
Capsule Dimensions Impedance SPL/Noise
Diameter n/a
150 Ohms (Low) Max SPL: 137 dB
Self-noise: 19.0 dB(A)
Weight Length Max Diameter Interface(s)
128g (4.52oz) 137mm (5.39'') 22mm (0.87'')
  • 3-pin XLR male (1)
Power Specifications
  • Requires phantom power
  • Phantom voltage: 48v

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