Product Price Frequency Response (Hz) Max Peak SPL (dB) Frequency Response Accuracy (%) THD at 90dB (%) Crossover Frequency (Hz) Impedance (Ohms)
iSEMcon EMX-7150
US
£247.69 10 Hz-20 kHz 145 dB SPL ±0.5 dB linearity

The iSEMcon EMX-7150 is an omnidirectional stainless-steel measurement microphone with a 10 Hz-20 kHz frequency range, ±0.5 dB linearity, and a 145 dB SPL maximum level. Its rugged construction, phantom-power operation, and individual calibration data suit acoustic measurement, room analysis, sound-system alignment, and demanding field work.

★ Ideal for

It suits beginners seeking a studio monitor frequency response analyzer because its 10 Hz-20 kHz range, ±0.5 dB linearity, individual calibration data, and straightforward phantom-power operation support accurate room and monitor measurements.

Earthworks M23
US
£4139.94 3Hz to 23kHz 140dB SPL +1/-3dB 65 ohm balanced

The Earthworks M23 is an omnidirectional measurement microphone with a 3Hz to 23kHz response, 140dB SPL capability, and individually tested calibration data. It suits room acoustics, loudspeaker design, PA tuning, and audio measurement work with FFT-based software.

★ Ideal for

The M23 suits beginners analyzing studio-monitor frequency response because its wide 3Hz to 23kHz range, omnidirectional pattern, 140dB SPL capacity, and included calibration chart provide dependable measurements with common software such as REW.

miniDSP UMIK-2 USB Reference Measurement Microphone
US
£144.18 20 Hz to 20 kHz ±1 dB 125 dB SPL ±1 dB

The UMIK-2 is a calibrated USB-C omnidirectional measurement microphone with a low-noise 1/2 in capsule, 32-bit ADC, and selectable sample rates from 44.1 to 192 kHz. Its plug-and-play compatibility with REW and Dirac Live makes it suitable for room correction, speaker measurement, and home studio acoustic analysis.

★ Ideal for

It suits beginners analyzing studio monitor frequency response because its 20 Hz to 20 kHz ±1 dB response, individual calibration file, USB-C connection, and direct REW compatibility simplify accurate measurements without requiring a separate audio interface.

Rational Acoustics RTA-420
US
£331.99 20 Hz - 20,000 Hz Approx. 110 dB

The RTA-420 is an affordable omnidirectional measurement microphone with a 20 Hz - 20,000 Hz frequency range, heavy-gauge steel construction, and a maximum SPL of approximately 110 dB. It suits beginners, students, home or classroom use, multi-microphone setups, and professionals needing a durable backup microphone.

★ Ideal for

It suits beginners because its 20 Hz - 20,000 Hz response, modest 110 dB maximum SPL, rugged construction, and low price support accessible frequency-response measurements, although it is not intended for high-level SPL work.

Audix TM1 Plus
US
£228.48 20 Hz to 25 kHz 130 dB +/-2 dB 200 ohms

The Audix TM1 Plus is an omnidirectional 6 mm pre-polarized condenser microphone designed for acoustic measurement, room analysis, and real-time analyzer software. Its flat response, high maximum SPL, and included calibration data make it suitable for studio engineers, sound professionals, and recording enthusiasts.

★ Ideal for

The TM1 Plus suits beginners learning studio monitor frequency response analysis because its 20 Hz to 25 kHz response with +/-2 dB accuracy provides a broad, consistent measurement range, while the included calibration data supports more reliable analyzer results.