Microphones

Shock absorbent mount for use for with EMX-7150 Measurement Microphone Learn More

Weather resistent windscreen for use with EMX-7150 Measurement Microphone. Includes integrated metal grid, impregnated foam cover and O-ring integrated mounting. Learn More

10 millimeter adapter for the iSEMcon SC-1 microphone calibrator.  This adapter fits any measurement microphone with a 10mm head.... including the Rational Acoustics RTA420.

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LIke it's predecessor, the NEW Rational Acoustics branded RTA-420 is a great little budget-friendly measurement mic with an impressively flat response curve for its price. The RTA-420 features heavy-gauge steel construction and measurement performance to rival high-end microphones costing many times more. Makes a great starter mic, spare or "B" rig mic and goes places you would be nervous to take your high-end, lab quality mic.  The RTA-420 makes multi-microphone measurements affordable for the rest of us.

The new Rational RTA-420 comes with a mic clip and a spiffy new bright yellow windscreen, which is great for spotting your mic in dark venues. And, it includes a custom-designed soft-sided carrying case that accommodates and organizes 2 microphones plus their accessories.

Please Note:  Like it's predecessor, the new Rational RTA-420 is PIN 3 HOT.

~ Rational can ship this baby anywhere! ~

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LIke it's predecessor, the NEW Rational Acoustics branded RTA-420 is a great little budget-friendly measurement mic with an impressively flat response curve for its price. The RTA-420 features heavy-gauge steel construction and measurement performance to rival high-end microphones costing many times more. Makes a great starter mic, spare or "B" rig mic and goes places you would be nervous to take your high-end, lab quality mic.  The RTA-420 makes multi-microphone measurements affordable for the rest of us.

The new Rational RTA-420 comes with a mic clip and a spiffy new bright yellow windscreen, which is great for spotting your mic in dark venues. And, it includes a custom-designed soft-sided carrying case that accommodates and organizes 2 microphones plus their accessories.

The RTA420 with Calibration Files is individually measured and serialized and comes with FRD and Sensitivity files included on a jump drive.

Please Note:  Like it's predecessor, the new Rational RTA-420 is PIN 3 HOT.

~ Rational can ship this baby anywhere! ~

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The EMX-7150 is a 1⁄4” capsule, free-field omnidirectional (pressure) reference microphone from iSEMcon. Its extraordinarily flat, “class 1” 10Hz to 20kHz frequency response and capability to measure at high sound pressure levels up to 145dBspl make it extremely well suited for use with the Smaart measurement system.

Each EMX-7150 microphone comes with a carrying case, a windscreen, a mic clip with adaptor nut, a 1/4 inch calibrator adaptor and calibration data included on a serialized jump drive. Optional Shock-Mount and Weather Resistant Windscreen accessories are also available.

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The SC-1 sound calibrator is a single-frequency dual-amplitude,self contained field calibrator used to quickly and precisely verify the accuracy and the sensitivity of microphones.

The unit generates a 1kHz reference tone at 94 and 110 dB SPL. The SC-1 consists of a amplitude switchable constant frequency oscillator, a transducer and a microphone coupler. The coupler accepts a large variety of microphones.

Rational offers this unit pre-packaged in a carrying case with both the 1/2" and 1/4" adapters as well as with operating instructions and factory certified calibration chart. The calibrator uses a single 9 Volt battery (included).

~ Rational can ship this product worldwide ~

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The S30 is a high-precision 1/4 inch reference microphone for SMAART™and other “audio band” measurement systems. It feature a razor-flat frequency response, fast impulse response, and exceptional polar characteristics. Relative to the more expensive SM30, the S30 is 64 mm / 2.5 in shorter, is flat to 23 kHz instead of 30 kHz, and has a slightly reduced peak SPL capability. It has virtually no handling noise and is remarkably stable with respect to temperature and atmospheric conditions. The S30 requires 48 V phantom power. Learn More