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AKG C 900 M

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This item has either been discontinued by the manufacturer or is no longer available to purchase on our website.

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(800) 771-8330

Handheld Cardioid Condenser Microphone


The AKG Model C 900M is a rugged condenser cardioid microphone intended for on-stage vocal and instrument pickup. Its extremely uniform polar pattern assures immunity to feedback and that helps make the C 900M ideal for use with in-ear monitoring systems. Due to its newly-patented backplate design, the C 900M maintains very uniform frequency response. If needed, the snap-on PB 1000 presence boost adapter adds 3 to 4 dB of response above 5 kHz for increased presence.

The microphone's capsule has been carefully shock mounted for low handling noise, and the dent-resistant spring steel grille is durable and easily removable for cleaning. The C 900M also has a modular output system, which allows the microphone to be equipped with a standard module, or used with the AKG TM 40 to function as a UHF wireless system.

The light-weight body is die-cast zinc alloy and has a soft touch paint finish for comfortable, secure handling and to minimize reflection and glare. A gold trim ring enhances the microphone's appearance. The microphone includes an SA 61 stand adapter, PB1000 presence boost adapter and nylon carrying bag.


  • Patented frequency-independent cardioid capsule for increased feedback immunity

  • Interchangeable output connector module for switched or wireless operation

  • Add-on presence boost adapter provides +3 to 4 dB boost above 5 kHz

  • Ideal for use with in-the-ear monitoring systems

  • Internal elastic suspension system for reduced handling noise

  • Light-weight die cast metal body with soft-touch paint finish and gold trim ring

  • Gold-plated capsule housing and XLR connector for added reliability and protection against corrosion


  • Transducer type: Pre-polarized backplate condenser

  • Frequency response: 20 - 20 kHz

  • Polar pattern: Cardioid

  • Power requirements: 9 - 52 Vdc

  • Impedance: 200 ohms

  • Recommended load impedance: >2000 ohms

  • Output connector: Gold plated XLR-M

  • Sensitivity: 6 mV/Pa; -45 dB (re 1 V/Pa)

  • Sound pressure level for 1% (3% ) THD: 139 dB SPL (142 dB SPL)

  • Equivalent noise level: 17.5 dB-A to DIN 45412

  • Dynamic range: 121.5 dB

  • Environmental operation:

  • Temperature: -10C to +65C

  • Maximum relative humidity at +20C: 90%

  • Size: Maximum diameter: 2.0 in. (50 mm), 7.1 in. length (180 mm)

  • Net weight: 10.4 oz. (295 g)

  • Shipping weight: 1.4 lb. (650 g)

  • Accessories included:Carrying bagPB 1000 presence boost adapterSA 61stand adapter

  • Optional accessories:TM40 UHF transmitter module,AKG WMS 40 Series wireless receiversB15 phantom adaptor

Q & A

C 900 M
MFR Part Number
C 900 M
Product Category
Unit of Measure
Shipping Weight
1.50 lbs.
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