Sontronics Aria, tube microphone, condenser microphone that has been developed and designed by Sontronics founder and designer Trevor Coley for vocals, polar patern cardioid, response 20 - 20000 Hz, sensitivity 28mV/Pa –35dB ±1.5dB (0dB = 1V/Pa @ 1,000Hz), pad 0dB and -10dB, lowcutfilter 75Hz, impedance 200 ohms, equivalent noise level 18dB(A-weighted), max spl 125dB (0.5% THD @ 1,000Hz), includes: shockmount, wooden box, sps-2 power supply, aluminum case