The Countryman Isomax 4RF Podium Microphone has unique Active Vibration Isolation which 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.
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. 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 theres no need for an expensive and bulky shock mount. 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. Versatile
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. Applications - All-purpose podium or table mic
- Excellent choice for live, reverberant rooms and houses of worship
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 directivity - 6dB more gain than any other podium mic
- 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
Specifications: - Polar Pattern: Hypercardioid
- Sensitivity:
- -52 dBd (0 dB 1 V/Pascal, open circuit)
- Output Impedance:
- 270 Ohms balanced, transformerless. Will drive any load impedance without distortion at full rated SPL.
- Maximum Sound Level: 120 dB SPL at 1% THD
- Phantom Power: 6 V to 50 V at 2 mA
- Connector: XLR-3 male
- Model E6iOW7 for powerful vocals
- Sensitivity: 0.70 mV/Pascal
- Equivalent Acoustic Noise: 39 dBA SPL
- Overload Sound Level: 140 dB SPL
Supplied with windscreen and storage tube.  | 
