The EM-01 sits in EverSolo's Accessories and Extensions range and is the measurement microphone the company designed to work alongside its streamers. Its intended job is acoustic calibration of the listening environment, and EverSolo also positions it for speaker measurements and on-site acoustic assessments rather than purely as a recording microphone.
Measurement accuracy
Every EM-01 ships with its own calibration file, retrieved by scanning the QR code on the packaging. With that file applied, EverSolo quotes a frequency response of 20Hz to 20,000Hz within ±1dB. Sensitivity at 1kHz is -13 ±2.0dBFS and the noise level is -84dBFS A-weighted at +30dB IGPA, while maximum sound pressure level is 130dB SPL at 1% THD, 1kHz. Analogue-to-digital conversion runs at 24-bit, 48kHz.
Build
The body is aluminium alloy, 155mm long and 47g on the scales, which EverSolo describes as a balance of lightness and strength. Behind the black foam windscreen sits a 6mm electret condenser capsule with an omnidirectional pattern, so it picks up sound arriving from any direction.
Connection and compatibility
Output is over USB Type-C using the UAC1.0 audio class protocol, and the microphone is plug and play with Windows, Mac, iOS and Android. Power is drawn from the USB connection alone at +5V, so there is no separate supply to find. Alongside its role with EverSolo streamers, the EM-01 supports third-party measurement software including REW and Dirac.
In the box
The microphone is supplied with a desktop tripod stand, a microphone holder, a 3m Type-C to USB-A data cable, a 1m Type-C to Type-C OTG data cable, a windscreen and a user manual.