recordinghacks

MXL 991

Wide Cardioid Pencil Condenser Microphone

The MXL 991 is a small-diaphragm condenser mic with a fixed cardioid (described by MXL as “wide cardioid”) pickup pattern.

The gold-sputtered diaphragm is 6 microns thick and measures 20mm in diameter. The capsule, and in fact the circuit design, match the MXL 603S, although the vendor’s published frequency charts describe the 991 as a much brighter mic, with a +3dB point at ~5k and +5dB at ~9k.

The 991 is no longer sold on its own, but is now bundled with the 990 condenser in the MXL 990/991 Studio Package.

The mic ships with a standard mic clip. A suspension shockmount is available separately; look for p/n MXL-41-603.

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Specifications

Frequency Response - Wide CardioidClick Graph to Compare!

Pickup Patterns	Pads & Filters
Wide Cardioid (15 mV/Pa; 30 - 18,000 Hz)

Capsule Dimensions	Impedance	SPL/Noise
Diaphragm diameter: 20mm Diaphragm gauge: 6 microns	110 Ohms (Low)	Max SPL: 137 dB Self-noise: 18.0 dB(A)

Weight	Length	Max Diameter	Interface(s)
159g (5.61oz)	134mm (5.28'')	22mm (0.87'')	3-pin XLR male (1)

Power Specifications
Requires phantom power Phantom voltage: 48 ± 4v

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