Audio-Technica AT4033A Cardioid studio condenser microphone

Product Overview

The Audio-Technica AT4033A is a large-diaphragm cardioid studio condenser microphone known for low self-noise and a natural, detailed sound. It is a dependable cardioid condenser microphone for vocals, voiceover, and acoustic instruments in broadcast studios, auditoriums, and houses of worship. A switchable 10 dB pad and 80 Hz roll-off adapt it to loud sources and control rumble.

Product Description

The AT4033A delivers a smooth, natural response with a low 17 dB SPL noise floor, which makes it well suited to detailed vocal and voiceover work as well as acoustic instruments. Its cardioid pattern rejects off-axis sound to improve isolation in reinforced rooms.

Frequency response runs 30–20,000 Hz with an open circuit sensitivity of –32 dB (25.1 mV) and a maximum SPL of 145 dB (155 dB with the 10 dB pad). The microphone requires 48V phantom power and ships with a shockmount.

For a multi-pattern alternative, the AT4050 adds omnidirectional and figure-of-eight patterns, while the AT4047/SV offers a warmer, transformer-coupled cardioid voicing.

Key Features

• Large-diaphragm cardioid element — A natural, detailed cardioid sound suits vocals, voiceover, and acoustic instruments.
• Low self-noise — A 17 dB SPL noise floor supports quiet, detailed sources without added hiss.
• High SPL handling — Handling up to 145 dB SPL (155 dB with the pad) supports close placement on loud sources.
• Switchable pad and filter — A 10 dB pad and 80 Hz high-pass filter adapt the microphone to loud sources and control rumble.
• Studio-ready package — The microphone ships with a shockmount for isolated mounting in the studio.

Typical Applications

• Broadcast studio
• Auditorium
• House of worship
• Multi-purpose room

Technical Specifications

Frequently Asked Questions

What is the AT4033A best used for?

Detailed vocal and voiceover work plus acoustic instruments, where a natural, low-noise cardioid condenser is preferred.

Does it require phantom power?

Yes. It requires 48V phantom power from your console, interface, or DSP.

How quiet is it?

Its self-noise is 17 dB SPL, which supports quiet, detailed sources without adding audible hiss.

When should I use the pad and filter?

Engage the 10 dB pad for loud sources, and the 80 Hz high-pass filter to control rumble and proximity buildup.

Is a shockmount included?

Yes. A shockmount is supplied to isolate the microphone from stand and floor vibration.

What warranty applies?

Audio-Technica provides a limited warranty; refer to their current terms. Creation Networks supports warranty and product questions on orders placed with us.