Countryman Isomax 4RF Gooseneck Microphone

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  • Product Highlights
  • Excellent RF Rejection
  • Active Vibration Isolation
  • Consistent Pickup Pattern
  • Exceptional Sound Quality
  • Lengths from 12" to 24"
  • 3-Pin XLR Connection
  • Includes Windscreen
  • Includes Carrying Tube
Model Isomax 4RF A3 Podium

Gooseneck Podium Microphone with Active Vibration Isolation

The ISOMAX 4RF's 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. The ISOMAX 4RF also virtually eliminates buzz from cell phones and other radio frequency (RF) sources, resulting in high-quality, interference-free audio for meeting rooms, houses of worship, and other sound reinforcement and broadcast applications. Its tightly-controlled, consistent pickup pattern over the vocal range preserves voice quality and any angle while reducing feedback.

Active Vibration Isolation
A separate pickup element senses vibration, handling noise, and physical shock and actually subtracts these problem sounds from the output. The result is less noise from bending the gooseneck, thumping the podium, or hand-holding the mic during interviews ... and there's no need for an expensive and bulky shock mount.

RF Immunity
The ISOMAX 4RF improves on the impressive RF rejection of the ISOMAX 4, making this version practically immune to interference from cell phones and other wireless devices.

Hypercardioid Pattern
Can be positioned farther from the presenter than conventional mics, so it remains unobtrusive while covering a wide area. The excellent side and rear rejection lets you use higher levels of amplification while avoiding feedback. Cardioid and Omnidirectional versions are also available.

Exceptional Sound Quality
Frequency response is essentially flat between 70 Hz - 18 kHz, with a slight rise at 3 kHz for additional presence. A 24 dB/octave high-pass filter at 70 Hz cuts wind noise and rumble without affecting voice. Overall sound quality is better than mics costing many times more.

The gooseneck tube can be bent and re-bent many times, and can be ordered in any length from 12" to 24". Semi-rigid reinforcing sections can be specified in the middle, at either or both ends, or along the entire tube. Special applications are easily accommodated while a variety of popular stock configurations makes ordering easy. The ISOMAX 4RF can be mounted in a standard clamp or plugged into an optional, unobtrusive through-desk mount that both connects and supports the mic. It can be powered by phantom power supply or optional battery pack.
  • Performance
  • Impressive RF rejection virtually eliminates interference from cell phones and other wireless devices.
  • Active Vibration Isolation eliminates vibration noise caused by tapping or bumping the table, raising/lowering mic, etc.
  • Frequency response is flat with excellent pattern control
  • Excellent hypercardioid directional pattern
  • Doesn't lose directionality at higher frequencies
  • Style
  • Sleek, elegant mic doesn't distract attention from the presenter
  • Active Vibration Isolation eliminates need for bulky, unattractive shock mounts
  • Polar Pattern: Hypercardioid, Cardioid, Omni
  • Output Impedance: 270 Ohms balanced, transformerless. Will drive any load impedance without distortion at full rated SPL.
  • Maximum Sound Level: 124 dB SPL at 1% THD
  • Phantom Power: 6 V to 50 V at 2 mA
  • Connector: XLR-3 male
  • Equivalent Acoustic Noise: 39 dBA SPL
  • Sensitivity: 5.0 mV/Pascal
  • Supplied with wind screen and carrying tube.
  • All-purpose podium or table mic
  • Excellent choice for live, reverberant rooms and houses of worship
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