AKG's versatile C 391 B cardioid condenser microphone is made up of an SE 300 B powering/output module and CK 91 cardioid capsule, with foam windscreen and stand adapter included. It's a great mic for the studio, and its insensitivity to handling noise makes it an invaluable addition to your collection.

Features:
• Switchable bass cut filter and 10-dB preattenuation pad
• Insensitive to handling noise
• High resistance to RF interference
• Capsules mount directly on SE 300 B powering unit or connects via 10-ft. (3-m) cable

Specifications:
• Polar pattern: cardioid
• Frequency range: 20 to 20,000 Hz
• Sensitivity: 10 mV/Pa (-40 dBV)
• Max. SPL: 132/142 dB (for 1% THD)
• Equivalent noise level (CCIR 468-3): 28 dB
• Equivalent noise level: 17 dB-A
• Signal/noise ratio (A-weighted): 77 dB
• Preattenuation pad: 10 dB, switchable
• Bass filter: 12 dB/octave at 75 Hz
• Impedance: 200 ohms
• Recommended load impedance: >1000 ohms
• Supply voltage: 9 to 52 V phantom power to DIN 45596
• Current consumption: <2 mA
• Connector: 3-pin XLR
• Finish: dark gray
• Dimensions: 19 dia. x 146 mm / 0.7 dia. x 5.7 in.
• Net weight: 115 g / 4 oz.
• Shipping weight: 420 g / 14.8 oz.