Product Description

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 Description

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.

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