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Apex Electronics 591

Pricing & Availability

  • MSRP: $200


591 Documentation

CardioidApex Electronics 591

Cardioid Condenser Microphone

Apex 591 is a battery-powered electret condenser with cardioid pattern. It appears to be a rebadged Alctron CM5.

The mic uses a 16mm back electret capsule. It can be powered by internal 9V battery or phantom power.

Two recessed switches provide a 3-way attenuation pad (flat, -10dB, -20dB) and switchable High Pass Filter (-12dB/Octave @ 80Hz).

The Apex591 bears a strong resemblance to the AKG C1000 and Rode M3, all battery-powered electret condensers.

It ships with a hard mount, foam windscreen and nylon sack.

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Pickup Patterns Pads & Filters
Cardioid (7.9 mV/Pa; 40 - 20,000 Hz)
  • Pad: -10dB (Via Switch)
  • Pad: -20dB (Via Switch)
  • Filter: -12dB/Oct @ 80Hz (Via Switch)
Capsule Dimensions Impedance SPL/Noise
Capsule diameter: 16mm
200 Ohms (Low) Max SPL: 142 dB
Self-noise: 21.0 dB(A)
Weight Length Max Diameter Interface(s)
490g (17.28oz) 227mm (8.94'') 33mm (1.30'')
  • 3-pin XLR male (1)
Power Specifications
  • Requires phantom power
  • Has battery compartment (9V)
  • Phantom voltage: 48v

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