XREF20 is a measurement microphone designed for use as a calibration tool with the Reference 4 Studio Edition bundle. Each XREF20 is individually measured by acousticians at Sonarworks to an ANSI certified stand to ensure pinpoint accuracy and the ability to avoid sample-to-sample irregularities.
- Pre-polarized electret-condenser capsule
- Flat frequency response from 20 Hz to 20 kHz
- Calibration curve
- Omnidirectional polar pattern