Countryman Isomax 4RF Podium Microphone
Cardiod Standard Sensitivity 18 inch Flexible Ends (M4-C-P-5-RF-18-E)
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 Install Sound > Install Microphones > Gooseneck thumping the podium or hand-holding the mic during interviews ... and there’s no need for an expensive and bulky shock mount.
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.
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 Install Sound > Install Microphones > 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.
All-purpose podium or table mic
Excellent choice for live reverberant rooms and houses of worship
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
Sleek elegant mic doesn't distract attention from the presenter
Active Vibration Isolation eliminates need for bulky unattractive shock mounts
Available Specified Options:
H = Hypercardioid
C = Cardioid
5 = Standard
4 = High Gain
12 = 12 in
18 = 18 in (most popular)
24 = 24 in
E = Both ends (most popular)
T = Top flexible
R = Rigid (can be bent by hand)
B = Bottom flexible
Supplied with windscreen and storage tube.
270 Ohms balanced, transformerless. Will drive any load impedance without distortion at full rated SPL.
Overload Sound Level:
124 dB SPL at 1% THD
9 V to 50 V at 10 mA
Equivalent Acoustic Noise:
39 dBA SPL