AIR adds top-end sparkle, while FLAT reproduces your sound as it is. Try both and capture the performance the way you want. AIR delivers an open, sparkling character. The right choice if you need great sound without spending time on post-production. FLAT provides a linear frequency response for “as-it-is” reproduction of drums, strings, acoustic guitars, and choirs. It is perfect if you aim for realistic sonic images. Check out the sound samples and hear for yourself. Features Small diaphragm condenser microphone Choose between two distinct sound characteristics Great for acoustic guitar and drums Excellent transient response  Cardioid polar pattern Specifications Type: Condenser, permanently polarized Acoustical operating principle: Pressure gradient transducer Transducer Ø: 17 mm, 0.67 in Polar pattern: Cardioid Sensitivity: 14.6 mV/Pa, -36.7 dBV/Pa Equivalent noise level: 20 dB (A), cardioid Max. SPL for 0.5 % THD: 135 dBSPL Dynamic range: 115 dB (A) Pre-attenuation pad: 0 dB -12 dB Low-cut filter: linear 80 Hz (12 dB/oct) Internal impedance: 173 O Rated load impedance: 1000 O Supply voltage: 48 V ± 4 V Current consumption: 7.2 mA Connector: Gold plated 3-pin XLR Microphone dimensions: 24 dia. x 140 mm, 0.9 dia. x 5.5 in Microphone net weight: 66 g, 2.3 oz