Countryman Isomax 4RF Podium Microphone

Countryman Associates Isomax 4RF Podium Microphone

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.

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 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

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.

ISOMAX 4RF Podium: Frequently Asked Questions:

How should I position the ISOMAX 4RF for best coverage?

The ISOMAX 4RF’s extremely accurate hypercardioid pattern works best when the mic element is about a foot in front of the presenter and at chest level, pointing toward the face. This location eliminates pops and other breath noises, doesn’t interfere with sight lines, and accommodates both normal conversational levels and presenters who prefer to project to the crowd.

The pickup area is approximately a 90° cone extending from the tip of the microphone, allowing the presenter to move around or share the podium with a second person.

What options are available for the ISOMAX 4RF?

The most popular configuration is black, with an 18” semi-rigid stalk that is flexible at the top and bottom. The ISOMAX 4RF is supplied with a matching windscreen and storage tube.

Length:
Stock lengths are 12”, 18”, and 24”, including the connector base.

Rigidity:
The ISOMAX 4RF stalk is available flexible; semi-rigid with a flexible top, bottom, or top and bottom; and completely rigid. The semi-rigid section can be bent without tools and rebent many times. The flexible sections are easily adjusted by the presenter.

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