Audio-Technica AT4049B End-address omnidirectional condenser microphone

Product Overview

The Audio-Technica AT4049B is an end-address omnidirectional condenser microphone from the 40 Series, built for natural, accurate capture of acoustic instruments, ensembles, and room ambience. Its true omnidirectional pattern and low self-noise make it a precise omnidirectional condenser microphone for broadcast studios, auditoriums, and houses of worship. It operates on 48V phantom power.

Product Description

The AT4049B captures an open, natural sound with consistent off-axis response, which suits room miking, orchestral and ensemble capture, and acoustic instruments where an accurate omnidirectional pattern is preferred. Low self-noise of 16 dB SPL supports quiet, detailed sources.

Frequency response runs 20–20,000 Hz with an open circuit sensitivity of –34 dB (19.9 mV) and a 50 ohm impedance. The microphone handles up to 145 dB SPL (155 dB with the 10 dB pad) for louder sources.

For cardioid and hypercardioid coverage in the same family, the modular AT4900b-48 body accepts interchangeable head capsules. The AT4049B requires 48V phantom power.

Key Features

• True omnidirectional capture — An accurate omnidirectional pattern delivers open, natural sound with consistent off-axis response.
• Low self-noise — A 16 dB SPL noise floor supports quiet, detailed sources such as room ambience and acoustic instruments.
• High SPL handling — Handling up to 145 dB SPL (155 dB with the pad) extends use to louder sources.
• 40 Series precision — The 40 Series design delivers detailed, accurate studio reproduction.
• 48V phantom operation — Standard phantom powering integrates with professional consoles, interfaces, and DSP inputs.

Typical Applications

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

Technical Specifications

Frequently Asked Questions

What is the AT4049B best used for?

Natural capture of room ambience, ensembles, orchestras, and acoustic instruments where an accurate omnidirectional pattern is preferred over a directional one.

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 16 dB SPL, which supports quiet, detailed sources without adding audible hiss.

Can it handle loud sources?

Yes. It handles up to 145 dB SPL, or 155 dB with the 10 dB pad engaged.

How does it integrate into our system?

It connects on standard 3-pin XLR to a phantom-powered channel on your mixer or DSP.

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.