Countryman ISOMAX 4RF


Countryman ISOMAX 4RF


The ISOMAX 4RF is a cardioid condenser lectern microphone designed for speech purposes. Additionally, a unique Active Vibration Isolation detects and subtracts table thumps, handling noise, and other vibration from the signal, providing full, clean sound without the need for bulky shock mounts. Its tightly-controlled, consistent pickup pattern preserves voice quality at any angle while reducing feedback. 

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  • Type: Electert Condenser
  • Polar Pattern: Cardioid
  • Power: 9 - 50 V DC 
  • Frequency Response: 50 - 18,000 Hz
  • Impedance: 270 Ω
  • Sensitivity: 5 mV/Pa
  • Max SPL: 124 dB
  • Self Noise: 39 dB (A-weighted)
  • Connector: 3-pin XLR