The 40 Series is a premium line of condenser microphones specially engineered to meet the most critical acoustic requirements of professional recording, live sound and broadcast.
Features:
A strong up-front presence characterizes the sonic signature of this versatile pro-audio classic.
Transformerless circuitry virtually eliminates low-frequency distortion and provides superior correlation of high-speed transients.
Precision-machined, nickel-plated brass, acoustic element baffle provides enhanced element stability and optimal sensitivity.
The 2-micron-thick, vapor-deposited gold diaphragm undergoes a five-step aging process so that the optimum characteristics achieved remain constant over years of use.
Floating-construction capsule assembly provides isolation from noise and vibration.
Open acoustical environment of the symmetrical housing assembly minimizes unwanted internal reflections.
State-of-the-art surface-mount electronics ensure compliance with A-T's stringent consistency and reliability standards.
Technical Info
Element: Condenser
Dynamic Range (Typical): 128 dB, 1 kHz at Max. SPL
Polar Pattern: Cardioid
Phantom Power Requirements: 48V (±4V)
Frequency Response: 30 - 20,000 Hz
Switches: 10 dB pad; roll-off
Open Circuit Sensitivity: -32 dB (25.1 mV), ±2 dB re 1V at 1 Pa
Low Frequency Roll-off: 80 Hz, 12 dB per octave
Impedance: 100 ohms
Weight: 13.4 oz (380 g)
Maximum Input Sound Level Output
145 dB SPL, 1 kHz at 1% T.H.D.
Connector: XLRM-type
Signal to Noise Ratio :77 dB, 1 kHz at 1 Pa
Accessories Included: AT8449 shock mount; microphone dust cover; protective case.
4 payments of 
Because this item is used at your mouth or ear, it cannot be returned once opened due to health reasons. 
