Applied 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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Specifications
| 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'') |
|
| Power Specifications |
|---|
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