Shure Microflex MX393/C Cardioid Boundary Microphone

Every Microflex Boundary microphone features one of the new interchangeable condenser cartridges. Available in cardioid, supercardioid and omnidirectional polar patterns, the Microflex cartridges give you superior Shure quality sound options for every installation. In addition, their programmable switches offer the flexibility to be set for Push to Talk, Push to Mute or Push On/Push Off modes. Attractively designed with a low profile, professional appearance, the Microflex Boundary microphones come with an easy to use paint mask for your custom-color installations.

• RF-resistant design for immunity to mobile and wireless interference
• Interchangeable cartridge system for pattern flexibility (cardioid / supercardioid / omnidirectional)
• Low-profile surface-mount enclosure for discreet installation
• Programmable switch modes (push-to-talk, push-to-mute, on/off)
• Designed for fixed installation in professional AV environments

Microphone Type

• Boundary-mounted electret condenser microphone

Polar Pattern

• Cardioid (interchangeable capsule system available)

Frequency Response

• 50 Hz – 17 kHz

Sensitivity

• -27.5 dBV/Pa @ 1 kHz

Maximum SPL

• 117 dB (1 kHz, 1% THD)

Equivalent Noise Level

• 23 dB (A-weighted)

Dynamic Range

• 94 dB

Off-Axis Rejection

• 45 dB

Power Requirements

• Phantom power (11–52 VDC)

Connectivity

• 1 × XLR 3-pin male output
• 12 ft (3.7 m) attached cable

Controls

• Programmable membrane switch
• Push-to-talk / push-to-mute / on-off modes
• LED status indicator

Construction

• Low-profile boundary housing
• Black finish
• RF-shielded circuitry

Physical Specifications

• Weight: 117.9 g (4.16 oz)
• Dimensions: 76.2 × 108.3 mm (3 × 4.26 in)