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Audio-Technica AT4033a Large-Diaphragm Cardioid Condenser Microphone

BH #AUAT4033A • MFR #AT4033A
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Audio-Technica AT4033a Large-Diaphragm Cardioid Condenser Microphone
Key Features
  • For Vocals and Instruments
  • Cardioid Pattern Reduces Room Noise
  • -10 dB Pad Switch
  • 80 Hz High-Pass Filter Switch
As the latest incarnation of the well regarded AT4033 studio and bluegrass mic, the Audio-Technica AT4033a is a large-diaphragm cardioid condenser microphone designed for detailed, clean, low-noise reproduction of vocals and various instruments, making it a versatile tool in project studios and home setups as well as for commercial facilities. The vapor-deposited gold diaphragm is pre-aged to stay sonically consistent over time while the transformerless circuitry minimizes low-end breakup and contributes to enhanced transient response. Additionally, the precision-machined acoustic baffle yields increased stability.
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Audio-Technica AT4033a Overview

As the latest incarnation of the well regarded AT4033 studio and bluegrass mic, the Audio-Technica AT4033a is a large-diaphragm cardioid condenser microphone designed for detailed, clean, low-noise reproduction of vocals and various instruments, making it a versatile tool in project studios and home setups as well as for commercial facilities. The vapor-deposited gold diaphragm is pre-aged to stay sonically consistent over time while the transformerless circuitry minimizes low-end breakup and contributes to enhanced transient response. Additionally, the precision-machined acoustic baffle yields increased stability.

The capsule assembly’s floating construction lessens vibration and a switchable 80 Hz high-pass filter offers at-the-source reduction of rumble and low-frequency buildup. Thanks to the custom shockmount, the AT4033a is further isolated from vibration and stand-borne noise. Since it can take high SPLs without distorting—up to 155 dB with the -10 dB pad engaged—the mic is a great choice for loud instruments in addition to nuanced, intimate performances.

Latest Incarnation of the AT4033
The latest edition of the legendary AT4033 microphone, the side-address AT4033a offers low-noise, symmetrical, transformerless circuitry that results in exceptional transient response and clean output signals.
Studio Classic Sound
A studio classic and bluegrass favorite, the AT4033 cardioid studio condenser is the microphone that broke the $1000 barrier in its class. A strong up-front presence characterizes the sonic signature of this 40 Series pro audio classic.
Switchable Settings
The AT4033a's 80 Hz high-pass filter easily switches between flat frequency response and a low-cut filter that diminishes ambient noise and popping with closely miked vocals. The -10 dB pad allows distortion-free pickup of blaring instruments such as drums and guitar amps.
Isolation from External Noise
Thanks to the floating-construction capsule assembly and provided custom shockmount, the AT4033a provides effective isolation from noise and vibration.
Features at a Glance
  • Cardioid polar pattern for directional focus and rejection of off-axis sounds
  • High maximum SPL of 145 dB (155 dB SPL with -10 dB pad engaged)
  • Transformerless circuitry minimizes low-frequency distortion and provides enhanced correlation of high-speed transients
  • Precision-machined, nickel-plated brass acoustic baffle provides enhanced element stability and optimal sensitivity
  • 2-micron, 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
  • Surface-mount electronics ensure compliance with Audio-Technica's stringent consistency and reliability standards
  • Custom shockmount provides superior isolation
  • XLR 3-pin output connector
  • Runs on 48V phantom power

Audio-Technica AT4033a Specs

Key Specs
Microphone Type
Large Diaphragm
Polar Pattern
Cardioid
Element Type
Electret Condenser
Controls
Low Cut/HPF, Pad
Frequency Response
30 Hz to 20 kHz
Maximum SPL
145 dB (1 kHz, 1% THD)
155 dB (1 kHz, 1% THD, with Pad)
Analog Output
1x XLR 3-Pin Male
Power Sources
Phantom Power
Microphone
Microphone Type
Large Diaphragm
Polar Pattern
Cardioid
Element Type
Electret Condenser
Sound Field
Mono
Diaphragm
0.1 mil / 2 µm (Thickness)
Orientation
Side Address
Controls
Low Cut/HPF, Pad
Pad
-10 dB
Filter & EQ
Low-Cut Filter: 80 Hz, 12 dB/Octave
Circuitry
Solid-State
Performance
Frequency Response
30 Hz to 20 kHz
Maximum SPL
145 dB (1 kHz, 1% THD)
155 dB (1 kHz, 1% THD, with Pad)
Sensitivity
-32 dBV/Pa (Open Circuit Voltage)
Dynamic Range
128 dB (1 kHz, at Max SPL)
Equivalent Noise Level
17 dB SPL
Connectivity
Analog Output Connector
1x XLR 3-Pin Male
Power
Power Sources
Phantom Power
Operating Voltage
48 V (Phantom Power)
Physical
Color
Black
Dimensions
ø: 2.1 x L: 6.69" / 5.3 x L: 16.99 cm
Weight
13.4 oz / 380 g
Packaging Info
Package Weight
3.145 lb
Box Dimensions (LxWxH)
11.55 x 9.85 x 4.25"

Audio-Technica AT4033a Reviews

Second to one but costs much less

By Andrew
Rated 5 out of 5
Date: 2020-07-05

Spent hours testing dozens of studio condenser mics, and the only one that sounded ever so slightly better than the AT4033 was the TLM 103. The very minor sound quality superiority of the 103 did not justify the significantly higher price. Went with the 4033 and have had absolutely no regrets. It has been a reliable studio workhorse for years of recording voiceovers, and has survived transport unscathed thanks to the sturdy case. The shock mount is another welcomed addition. You would be hard pressed to find a better sounding mic for less.

artist recommended

By 7eyes
Rated 5 out of 5
Date: 2018-07-10

very very awesome quality crisp and exceptional recording art enthus must acquire great value bang for the bucks

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