Earthworks QTC40 Matched Pair

Small-diaphragm Matched Stereo Pair of Omnidirectional Condenser Mics
Earthworks QTC40 Matched Pair image 1
Earthworks QTC40 Matched Pair image 1
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Earthworks QTC40 Matched Pair
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"The Quiet Omni!"

Capture "true" sound at Sweetwater! The QTC40 microphone provides a true and accurate representation of sonic events as they happen in the air. This means you get the REAL sound, the sound that's really there. Naturally, the QTC40 mics are whisper quiet, enabling you to mic even the most subtle vocal or choir passage with no noise! You get the super-flat frequency response of the TC Series combined with a noise floor that's under this world (get it)! If what you crave is tonal purity and low noise, the QTC40 is THE mic of choice!

This is a matched pair of QTC40s!

  • Quiet TC
  • +/-1dB from 9Hz to 40kHz
  • Max SPL is 140dB
  • Omni directional
  • Requires +48V phantom power

Additional Media

QTC40 User Manual
Studio Microphone Buying Guide
Free Mics!
Earthworks QTC40 Matched Pair Review

Tech Specs

Microphone Type Condenser
Mono/Stereo Stereo Pair
Polar Pattern Omni
Frequency Response 9Hz-40kHz
Max SPL 142dB
Output Impedance 100 ohms
Self Noise 22dB (A weighted)
Color Silver
Connector XLR
Weight 0.5 lbs.
Manufacturer Part Number QTC40mp

Customer Reviews

Based on 4 reviews
Write your review

I'd give 6 stars if I could!

I bought a matched pair of these (then called the QTC1) in 2001, and I STILL use them 2 or 3 times a week. For classical recording or capturing full range instruments accurately these can't be beat. I've used many other high-end mics, and nothing has ever come close to the detail and realism of these.
Music background: Recording & Live Sound Engineer/Educator

Great transparent mics

I've specialized in location recording of classical music (choral, organ, chamber, and orchestral) for over 30 years, always using a "purist" approach: one mic per stereo channel. I've used a variety of good mics from Shure, AKG, Sennheiser, Neumann, and nothing has come close to the transparency of the matched pair QTC 40, which I have feeding an Earthworks mic preamp and then Apogee Rosetta A/D conversion. Part of the transparency comes from the very small diaphragm. The laws of physics dictate that means a small trade-off in ultimate noise floor compared to larger diaphragm mics. But I've never heard a larger diaphragm mic with the degree of neutral "you are there" quality that these mics offer. The trade-off is worth it for my ears.
Music background: College music prof, Choral conductor & organist, part-time recording engineer

Very accurate

I'm a film composer and I bought 2 matched pairs based on very high recommendations from people in the industry, and I'm very happy so far. I've used them on accoustic guitar, a baby grand piano, a hammered dulcimer and various percussion instruments. The results for all of these have been very good. I'm quite surprised by how much level they can take before clipping. You will hear everything with these mics, so you better have a quiet studio! :)
Music background: Film scoring, recording engineering.

Great sound, yes! Quiet, not so much...

I purchased these hoping for a very quiet noise floor. That just wasn't there. However, f you are recording in a situation where you don't need absolute silence these are wonderful mic's. As a spaced pair for drum overheads ambient mic's on piano close mic'ing a strummy guitar, they are stellar! Buy them, but don't expect silence if you are, maybe on more step like the DPA 4006 is needed. (That mic' would get a 5 star rating from me.)
Music background: Recording Engineer/Producer

Sweetwater Advice

Carson McClain

Not much convincing needed here. All you need is two QTC40s and a kick mic and you will be set on drum mics. Run these in to an A-Designs Pacifica for that extra charming sound.

Jeff Barnett

My first day working in a classical recording studio, the head engineer was showing me the mic collection. "When you want to record something exactly the way it really sounds, use these," he said, handing me an engraved cherry box. "Use them on everything." Inside, was a pair of Earthworks QTC1's (now re-named the QTC40's). He was right. Those mics were the real workhorses of that studio. We used them on just about everything. Since then, I've learned to love their transparency in all genres of music, not just classical. These are truly one of the gems any mic collection. Every engineer should have at least one Earthworks mic in their arsenal!

Andy Bitler

During a recent tracking session, I was looking for a microphone that would capture an acoustic guitar in an extremely natural and uncolored way. A friend of mine strongly recommended that I try out the Earthworks QTC40, so I eagerly gave them a shot. The first thing that captured my attention about this set was the quality of the craftsmanship put into the carrying case. It was made of solid cherry, with a strong spring latch, and was lined with a purple velvety material. The stainless steel mics inside the box looked like surgical devices! I was very excited to try them out. I experimented with many different placements for this mic, and every one sounded amazing. Very smooth, super detailed, and highly musical, the QTC40 accurately captured all of the intricacies of the acoustic guitar track in this session. I strongly encourage any recordist looking for a precision tool to add to their collection to purchase a matched pair of the Earthworks QTC40s!
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See also: Condenser Mics, Earthworks, Earthworks Condenser Microphones