40KHZ OMNI MICROPHONE
QTC40
Unparalleled accuracy. Gratifying realism. 360 degrees of sound.
40KHZ OMNI MICROPHONE
QTC40
Unparalleled accuracy. Gratifying realism. 360 degrees of sound.
Legacy building sound.
The Earthworks QTC40 eliminates the gap between form and functionality, revealing levels of realism you didn’t think possible. From the rich, mid lows to the clear, luscious highs, sacrifices in sound are a thing of the past with the QTC40 condenser.





Detail in Every Direction
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.

Detail in Every Direction
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.
Perfectly Balanced
With an extended 3Hz – 40kHz ruler-flat frequency response (with no frequencies exaggerated or attenuated) the result is a more accurate representation of the original sound.

Perfectly Balanced
With an extended 3Hz – 40kHz ruler-flat frequency response (with no frequencies exaggerated or attenuated) the result is a more accurate representation of the original sound.
Massive Headroom
With an SPL rating of 140dB, the QTC40 has plenty of headroom. And with no proximity effect, you can get it as close as you want to the sound source.
Professional products
designed with professionals in mind
In audio, our perception of what feels real and natural is incredibly sensitive to resolution in the time domain. In particular, the level of detail present in the initial transient is responsible for much of our sense of content, meaning, and frequency balance. This includes defining attributes like “timbre”, “texture”, and “air”. Earthworks’ blazingly fast technology ensures that every performance sounds like life


Specifications
FREQUENCY RESPONSE | 3Hz – 40kHz ±1dB |
POLAR PATTERN | Omnidirectional |
SENSITIVITY | 34mV/Pa (-29dBV/Pa) |
POWER REQUIREMENTS | 24-48V Phantom, 10mA |
PEAK ACOUSTIC INPUT | 140dB SPL |
OUTPUT | XLR (pin 2+) |
OUTPUT IMPEDANCE | 65Ω balanced (between pins 2 & 3) |
MIN OUTPUT LOAD | 600Ω between pins 2 & 3 |
SELF NOISE | 20dB SPL equivalent (A weighted) |
DIMENSIONS L x D | 229mm x 22mm (9.0 x .860 inches) |
WEIGHT | .5 lb. (225g) |
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.
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.