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CardioidApex Electronics 191

Cardioid Pencil Condenser Microphone

The Apex 191 is a small-diaphragm electret pencil condenser with cardioid polar pattern.

It is essentially the same mic as the Apex 190, but includes an internal battery compartment (for a single 1.5V AA/UM3 battery), enabling the 191 to be used where phantom power is not available.

An On/Off switch on the mic body saves battery life when not in use.

The mic’s stated sensitivity, 0.56 mV/Pa, is remarkably low. In fact it is lower than the Shure SM7B dynamic, which is somewhat famous for its low sensitivity. If the 0.56mV/Pa figure is correct, it means the Apex 190/191 are only suited to relatively loud sources.

These mics’ self-noise figure is probably in excess of 22dBA.

The 191 ships with a mic clip, foam windscreen and soft carry bag.

Permalink: Apex Electronics 191


Pickup Patterns Pads & Filters
Cardioid (0.56 mV/Pa; 70 - 18,000 Hz)
Capsule Dimensions Impedance SPL/Noise
Diameter n/a
250 Ohms (Low) Max SPL: 135 dB
Weight Length Max Diameter Interface(s)
98g (3.46oz) 182mm (7.17'') 22mm (0.87'')
  • 3-pin XLR male (1)
Power Specifications
  • Requires phantom power
  • Has battery compartment (1 x 1.5V AA)
  • Phantom voltage: 9 - 52v

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