Microphones & Accesories

Precision reference microphones for acoustical measurement and sound system analysis as well as high-quality, ultra-compact microphone stands and clamp mounts so you'll never again have to gaff tape your prized measurement microphone to another broom handle or risk disaster by balancing it on top of a ladder.

18 Item(s)

per page

List  Grid 

Set Descending Direction
  1. MH-SH19 Shockmount

    ISEMcon MH-SH19 Shockmount

    $16.00

    Shock absorbent mount for use for with EMX-7150 Measurement Microphone Learn More
  2. Manfrotto Spring Clamp Mic Mount Kit

    Spring Clamp Mic Mounting Kit

    $29.99

    Q: What's the fastest way to turn a stationary object* into functional a microphone stand? A: Our spring clamp microphone mounting kit enables you to quickly mount a measurement microphone on the backs of theatre seats, balcony railings, pipes, beams, table tops or any other object up up to 1.6" (41 mm) in thickness -- a terrific option when you need to mount a microphone in locations where a mic stand is impractical to use or when you need to leave your mic stand at home. We package the Manfrotto spring clamp with a 1/4" - 3/8" Adapter Spigot and a 3/8"-to-5/8” thread adapter to fit standard USA mic clips. European style mic clips can be fitted directly to the adapter spigot without the thread adapter. *Not recommended for use on people or pets. Please note that Rational Acoustics can ship this product to destinations in the USA only. Learn More
  3. ISEMcon SWS-7 Weather Resistent Windscreen

    ISEMcon SWS-7 Weather Resistent Windscreen

    $30.00

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

    iSEMic Bushing & Cable Kit

    $34.50

    The iSEMic Bushing & Cable kit includes the MH-07D Bushing and the CX-BFBM 2 meter coax extension cable.

    The MH-07D Bushing allows the iSEMic 725TR microphone to be attached to a standard mic clamp or shockmount.

    Attach the CX-BFBM extension cable to the microphone and insert the microphone into the clamp. Use the Allen-key to fasten the screw slightly.It is best not to clamp the microphone body but the SMB connector to avoid scratches or deformations on the microphone body.

    Learn More
  5. SC-1 10mm adapter

    iSEMcon 10mm Calibrator Adapter

    $35.00

    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.

    ~ Rational can ship this product worldwide ~

    Learn More
  6. The Nano Stand – Ultra-Compact Full Size Mic Stand

    The Nano Stand – Ultra-Compact Full Size Mic Stand

    $66.00

    Out of stock

    The Manfrotto Nano Stand is an exceptionally versatile ultra-compact mic stand. It can extend up to a tad over 7' feet high (2.16 m) but thanks to an ingenious reverse folding leg design, it collapses down to a mere 18.9 inches (48 cm) – compact enough to fit in a lot of carry-on bags – and weighs just 2.1 lbs (0.95 kg). The versatile leg design also allows adjusting its footprint size from relatively small to quite large. In tight spaces, such as between seating rows, it can stand in as little as 12-14 inches (~30 - 35 cm) of floor space but expands to a whopping 39.4 inch (100 cm) circular footprint for greater stability in more open spaces. With legs fully extended it has a rated load capacity of 3.3 lbs (1.5 kg).* For lighter loads such as a microphone and wireless pack, the legs can safely be positioned at any extension that makes sense for your application. Rational supplies a thread adapter to accommodate the larger 5/8-27 USA standard mic clips with every stand we ship. European style 3/8-16 microphone clips fit directly to this stand with no adapter required. Please note that Rational Acoustics can ship this product to destinations in the USA only. Learn More
  7. 4' Mini Tripod Mic Stand

    4' Mini Tripod Mic Stand

    $75.00

    The Manfrotto 4' Mini is one of our most asked-about items. This high quality mini telescoping tripod stand is perfect for the true backpack measurement ninja. It features the most compact folded size (15.75", 39.9 cm) of any usable mic stand we've seen but opens to a full four feet high (1.23 m) when fully extended. We have found this to be a very useful height for a lot of measurement work in general, perfect for measuring on the seated listening plane. Constructed of lightweight aluminum this tripod-base stand weighs in at less than 1.5 lbs. (0.66 kg) and easily fits in virtually any carry-on bag, backpack or briefcase-style case. Compact 17.7" (45 cm) footprint diameter that easily navigates between rows in theater style seating. Please note that Rational Acoustics can ship this product only to destinations in the USA. Learn More
  8. Quick Release Mic Clamp Kit

    Quick Release Mic Clamp Kit

    $75.00

    When you need to clamp mount to objects larger than our Spring Clamp kit can accommodate, or just want the extra security of a screw clamp, the Manfrotto Quick Release clamp is just what the doctor ordered. This clamp features a rubber cushioned jaw with a V-channel that allows it to clamp securely to pipes or tubes as well as rectangular objects up to 3.14" (8 cm) in thickness/diameter. The mounting post can be extended up to 4.8 inches from the body of the clamp, providing even greater flexibility in positioning your mic. A patented quick release mechanism make setting and removing a breeze. Please not that Rational Acoustics can ship this product only to destinations in the USA. Learn More
  9. Rational RTA-420

    Rational RTA-420

    $89.00

    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! ~

    Learn More
  10. iSEMic SA-XBF Adapter

    ISEM-iSEMic SA-XBF Adapter

    $140.00

    ISEMcon SA-XBF Phantom Power Adapter for iSEMic 725TR microphone

    The SA-XBF Phantom Power adapter contains special circuitry to match the iSEMic microphone to Phantom Power devices.The mic draws power from the hot and the cold XLR input which makes it impedance symmetrical. The electronics also limits the power draw from both, the hot and the cold input (2mA each).

    NOTE: While using the full featured adapter there is approximately 1dB frequency roll-off at 10Hz.

    Learn More
  11. Rational RTA-420 with Calibration Files

    Rational RTA-420 with Calibration Files

    $149.00

    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 includes frequency response correction files (mic correction) and a microphone report with the microphone's sensitivity.

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

    ~ Rational can ship this baby anywhere! ~

    Learn More
  12. iSEMic 725 Base Kit

    iSEMic 725TR

    $199.00

    Out of stock

    The ¼“ iSEMic Microphone is a measurement mic specifically designed to interface directly with iPhones, iPads as well as other mobile devices including laptop computers and Phantom Powered Pro Audio Equipment. The iSEMic can be used directly with USB interfaces, without the need of any active converter, just using the appropriate adapter.

    The iSEMic is 1/4" (7mm) in diameter, 3.7" (94mm) long and is manufactured from a stainless steel housing, with built-in electronics and gold plated connectors.. It operates on a supply voltage of 2.5V to 52Vdc with surge voltage protection and has a frequency range from 20Hz to 20kHz. It comes with both the free-field and diffuse-field calibration data included.

    With its mechanically robust design it is well suited for harsh environmentssuch as open air sound reinforcement measurements. Its IEC 61672 class 2 frequency response makes it suitable for room acoustics analysis including recording studios and home theaters.

    The iSEMic 725TR Base Kit includes the individually calibrated microphone with individual free and diffuse-field data (available via download), the SA-iBF adapter for iPad/iPhone use and a windscreen, all packed in a compact tin metal case.

    *Rational Acoustics can ship this product to destinations within the USA and  to selected countries worldwide.  If you are ordering from outside of the USA, please contact us prior to ordering to confirm shipping availability"

    Learn More
  13. sc-1 combo

    ISEMcon SC-1 Microphone Calibrator

    $341.00

    Out of stock

    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 Acoustics can ship this product to destinations within the USA and  to selected countries worldwide.  If you are ordering from outside of the USA, please contact us prior to ordering to confirm shipping availability"

    Learn More
  14. ISEMcon EMX-7150 Kit

    ISEMcon EMX-7150

    $346.00

    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.

    *Rational Acoustics can ship this product to destinations within the USA and  to selected countries worldwide.  If you are ordering from outside of the USA, please contact us prior to ordering to confirm shipping availability"

    Learn More
  15. Earthworks S30

    Earthworks S30

    $459.99

    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
  16. iSEmcon EMX-7150 Matched Pair

    ISEMcon EMX-7150 Matched Pair

    $839.00

    iSEMcon is now offering MATCHED PAIRS of their EMX-7150 Measurement Microphones.

    For Matched Pairs of EMX-7150's, each microphone is individually calibrated and selected to meet iSEMcon's standard matching tolerance, which is applicable throughout the microphone's entire frequency range. The matching tolerance for the EMX-7150 is +/- 0.5 dB for frequency response and 1mV for microphone sensitivity.

    Matched Pairs are supplied not only with the individual microphone calibration data (both print and digital file) but also with the matching curve(s) for the bundled mics.

    Each Matched Pair of EMX-7150 microphones comes 2 EMX-7150 mics, 2 windscreens, 2 mic clips with adaptor nuts, a 1/4 inch calibrator adaptor, calibration & matching data included on a serialized jump drive and a carrying case. Optional Shock-Mount and Weather Resistant Windscreen accessories are also available.

    *Rational Acoustics can ship this product to destinations within the USA and  to selected countries worldwide.  If you are ordering from outside of the USA, please contact us prior to ordering to confirm shipping availability"

    Learn More
  17. iSMEcon EMX-7150 Matched Quad

    ISEMcon EMX-7150 Matched Quad

    $2,026.00

    iSEMcon is now offering MATCHED QUADS of their EMX-7150 Measurement Microphones.

    For Matched Quads of EMX-7150's, each microphone is individually calibrated and selected to meet iSEMcon's standard matching tolerance, which is applicable throughout the microphone's entire frequency range. The matching tolerance for the EMX-7150 is +/- 0.5 dB for frequency response and 1mV for microphone sensitivity.

    Matched Quads are supplied not only with the individual microphone calibration data (both print and digital file) but also with the matching curve(s) for the bundled mics.

    Each Matched Quad of EMX-7150 microphones comes with4 EMX-7150 mics, 4 windscreens, 4 mic clips with adaptor nuts, a 1/4 inch calibrator adaptor, calibration & matching data included on a serialized jump drive and a carrying case. Optional Shock-Mount and Weather Resistant Windscreen accessories are also available.

    *Rational Acoustics can ship this product to destinations within the USA and  to selected countries worldwide.  If you are ordering from outside of the USA, please contact us prior to ordering to confirm shipping availability"

    Learn More
  18. Microphone NOT included

    Lectrosonics TM400

    $2,164.00

    Wireless Microphone System for Test and Measurement

    The Lectrosonics TM400 is the professional's choice for large venues, outdoor events or any other situation where using a cabled measurement microphone becomes problematic. Very few wireless transmission systems for microphones are really suitable for acoustical measurement work, due to limited dynamic range and frequency response and inline non-linear processors such as compressors and limiters and compander noise reduction. The TM-400 from Lectrosonics is specifically designed to overcome these limitations, making it a virtual industry standard for acoustic test and measurement work with larger systems and venues.

    Rational Acoustics generally carries TM400 Systems with HMA B1 transmitters and R400A Block 22 Receivers in stock .  If you require a different, specific frequency block, please contact Rational Acoustics prior to ordering to confirm availability & lead time.

    Microphone NOT included

    Please note that Rational Acoustics can ship this product to destinations within the USA only.

    Learn More

18 Item(s)

per page

List  Grid 

Set Descending Direction