Check the listing for details. Audio-Technica AT4021 Small Diaphragm Condenser Microphone. Condition: New. Listed at 349.00 USD. Audio-Technica AT4021 Small Diaphragm Condenser Microphone Description Ideal for critical studio and live applications, the low-profile AT4021 offers a flat, extended frequency response, high maximum SPL, and wide dynamic range. Its low self-noise is perfectly suited for the most sophisticated recording equipment. Its low-mass diaphragm improves transient response, increases response bandwidth, and reduces handling and mechanical noise transfer. The microphone offers outstanding reproduction of low-frequency sounds. Features High SPL Handling and Wide Dynamic RangeSwitchable 80 Hz Hi-Pass Filter and 10 dB PadLow Self Noise Perfectly Suited for Digital Recording EquipmentExceptional Reproduction of Low Frequency SoundsLow-Mass Element for Superb Transient Response Attributes Color: BlackConnector Type: XLRTechnical Specifications Type: CondenserFeatures: Case IncludedUnit Count: SingleInstrument Type: Acoustic Guitar, DrumFormat: InstrumentPower Source: 48V Phantom PowerPolar Pattern: CardioidDiaphragm: Small: Up to 0.5" (12.7mm)Max Sound Pressure Level (SPL): 140-149dBFrequency Response: 20Hz-20kHzOutput Impedance: 250 ohms