Condenser design for studio-quality vocal and instrument applications
Excels in high-SPL applications
Extended response for smooth, natural sonic characteristics
Low-mass element for superb transient response
Corrosion-resistant gold-plated XLRM-type connector
Rugged design and construction for reliable performance
Cardioid polar pattern reduces pickup of sounds from the sides and rear, improving isolation of desired sound source The AT2021 is intended for use in professional applications where remote power is available. It requires 48V DC phantom power, which may be provided by a mixer or console, or by a separate, in-line source such as the Audio-Technica AT8801 single channel or CP8506 four-channel phantom power supplies. Output from the microphone’s XLRM-type connector is low impedance (Lo-Z) balanced. The signal appears across Pins 2 and 3; Pin 1 is ground (shield) Output phase is “Pin 2 hot” – positive acoustic pressure produces positive voltage at Pin 2. To avoid phase cancellation and poor sound, all mic cables must be wired consistently: Pin 1-to-Pin 1, etc. Avoid leaving the microphone in the open sun or in areas where temperatures exceed 110° F (43° C) for extended periods. Extremely high humidity should also be avoided.
AT2021 SPECIFICATIONS
ELEMENT Fixed-charge back plate permanently polarized condenser
POLAR PATTERN Cardioid
FREQUENCY RESPONSE 30-20,000 Hz
OPEN CIRCUIT SENSITIVITY –39 dB (11.2 mV) re 1V at 1 Pa*
IMPEDANCE 250 ohms
MAXIMUM INPUT SOUND LEVEL 145 dB SPL, 1 kHz at 1% T.H.D.
NOISE1 19 dB SPL
DYNAMIC RANGE (typical) 126 dB, 1 kHz at Max SPL
SIGNAL-TO-NOISE RATIO1 75 dB, 1 kHz at 1 Pa*
PHANTOM POWER 48V DC, 2 mA typical REQUIREMENTS
WEIGHT (less accessories) 2.9 oz (83 g)
DIMENSIONS 4.00″ (101.5 mm) long, 0.83″ (21.0 mm) maximum body diameter
OUTPUT CONNECTOR Integral 3-pin XLRM-type
ACCESSORIES FURNISHED Stand clamp; soft protective pouch
