Earthworks QTC40 40kHz Omni Microphone for Quiet Sources

Low noise omnidirectional microphone designed for recording quiet sources

– 4Hz – 40kHz flat frequency response
– Omnidirectional polar pattern
– Handles up to 138dB SPL without distortion

Delivering sound so detailed and real, the QTC40 brings recordings to life and delivers a truly accurate snapshot of your sound.

Its near-perfect omnidirectional polar pattern is uniform across all specified frequencies, letting the microphone capture rich and consistent detail at any position around the capsule.

With an extended 4Hz – 40kHz ruler-flat frequency response (with no frequencies exaggerated or attenuated) the result is a more accurate representation of the original sound.

The QTC40 is time coherent, precisely capturing high and low frequency sounds with no phase errors, which will smear transients and create other time related distortions.

With an SPL rating of 138dB the QTC40 has plenty of headroom, so there is no need to worry about the microphone distorting. And there is no proximity effect, you can get the QTC40 as close as you want to the sound source.

Ideal for for recording quieter sources such as vocals, strings and distant miked orchestras or choirs, these low noise omnis are also an excellent choice for drum overheads, close-miked wind and percussion instruments, and foley.

The QTC Series (Quiet Time Coherent) is designed for recording quieter sources such as vocals, strings and distant miked orchestras or choirs. These low-noise omnis are also an excellent choice for drum overheads, close-miked wind and percussion instruments. Earthworks’ reputation for realism is based on these distinctive omnis. Time Coherent Response means these models do not smear the time domain as most microphones do.

Benefits

– High intelligibility
– More gain before feedback
– Near-perfect polar response
– Excellent off-axis rejection
– Uniform frequency response on or off-axis
– Wide pickup pattern, allowing performer to move about freely and still maintain pristine sound quality
– Far less sound in the microphone from your floor monitors
Reliable performance

Earthworks directional microphones have patented near-perfect polar patterns. The sound across the entire front hemisphere is remarkably uniform and is flatter at 90 degrees than most microphones are on-axis. Our live performance microphones also have an incredible transparent sound quality, offering near-perfect polar response and high rejection of sounds at the rear of the microphone, resulting in less leakage and more gain before feedback.

With a maximum sound press level of 145dB SPL, you don’t have to worry about overloading the microphone with loud attacks or strong plosives. While the microphones are able to capture your performance with incredible nuance and precision, they are also built to withstand the rigors of the road.

QTC40 Impulse Chart

Polar Pattern

 

QTC40 Frequency Response Chart

 

Features

– With a frequency response to 40kHz and excellent impulse response, it will reproduce sounds with incredible detail that are true and life-like, making it an ideal and affordable choice for recording applications
– Intended for detailed sources
– Omnidirectional polar pattern
– Flat frequency response, fast impulse response and exceptional polar characteristics
– Accurate and uncolored
– Handles sound levels up to 140dB with no proximity effect or handling noise
– Requires 48V Phantom Power

Uses

– Acoustic String Instruments
– Brass/Woodwinds
– Choir
– Piano
– Recording
– Studio Vocals
– Theater

Models

QTC40 40kHz omnidirectional microphone for quiet sources

QTC40mp 40kHz omnidirectional microphone for quiet sources – Matched Pair

Testimonial

“A single QTC40 on a 12-string acoustic guitar yields a result that is instantly gratifying-balanced, plenty of weight, not at all harsh and full of that HF harmonic detail that really brings a sound to life.”

Jon Thornton, Resolution

“When using the Earthworks mics, you can really hear and tell what things sound like. The QTC40s are great on about everything I have put them on. You just don’t have the proper perspective, until you have actually used Earthworks mics, and find out what a revelation they are.”

Robert Root, Recording Engineer

Model	QTC40, QTC40mp

- Frequency Response: 4Hz to 40kHz ±1/
- Polar Pattern: Omnidirectional
- Sensitivity: 36mV/Pa (-29dBV/Pa)
- Power Requirements: 48V Phantom, 10mA
- Max Acoustic Input: 140dB SPL
- Output: XLR (pin 2+)
- Output Impedance: 65Ω balanced (between pins 2 & 3)
- Min Output Load: 600Ω between pins 2 &
- Noise: 20dB SPL equivalent (A weighted)
- Dimensions L x D: 229mm x 22mm (9 x .860 inches)
- Weight: .5 lb. (225g)

Download User Manual for Earthworks 40kHz Omni Microphone for Quiet Sources