Earthworks Audio QTC30 User manual

QTC30
OMNIDIRECTIONA
ROOM MICROPHONE
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For more information, please visit
earthworksaudio.com or call 1 603 654 2433.

Thank you for purchasing the Earthworks
QTC30 Omnidirectional Microphone
YOUR PURC ASE INCLUDES
1 Earthworks QTC3
1 Microphone Cli
1 Calibration Chart
GETTING STARTED
The QTC30 is a condenser microphone with active
electronics. This meanss
U Its output level will be naturally higher than many of
the dynamic microphones that it may be replacing.
It is not uncommon to need to reduce gain if you
were previously using a dynamic microphone.c
U You will need to engage phantom power on your
interface or preamp. Pro Tip: It's always a good idea
to plug in a condenser microphone while phantom
power is off and the channel is muted. After
engaging phantom power, give the microphone a
short time to settle before unmuting.
PROPER MAINTENANCE
To guarantee your microphone provides years of
performance, follow these guideliness
U Avoid touching the front protective screen.c
U Never attempt to disassemble the microphone - it
cannot be opened.c
U Avoid extreme heat and condensing humidity.
Allow the microphone to warm up when bringing it
in from the cold.
QTC30
Omnidirectional Microphone

 Rough handling may damage the microphone
even if no markings are visible.
 When not in use, keep the microphone in its case.
IMPORT NT NOTICE
The small tip on many of our microphones allows them
to capture the highest frequencies of your sound.
Please be gentle and considerate when handling the
microphones with these tips. (Microphones such as the
SR314 and SR40V shield the tip within their capsule,
and are thus more durable.)
TROUBLESHOOTING
If you encounter issues while using your Earthworks
Audio microphone, please make sure thath
 Your microphone is connected to an active power
supply.
 Phantom power is being supplied to the
microphone.
 Your microphone and XLR cable are well
connected.
 The microphone is positioned at an appropriate
distance from the sound source.
 External noise in your recording environment is
kept to a minimum.
 Your recording space is at room temperature and
free of dust
If your issue persists after checking, please contact us
via our website.
QTC30
Omnidirectional Microphone

WARRANTY
All Earthworks® products carr a limited warrant (parts and
labor). Please register our warrant at: earthworksaudio.com/
register. If ou have an problems with our Earthworks
products, please contact our warrant /repair department b
email at: [e-mail].
NOTE
This warrant onl applies to Earthworks microphones
purchased brand new. For microphones purchased/received
second-hand, please contact us via our website.
37 Wilton Rd. Milford, NH 03055
[e-mail]
© 2021 Earthworks Audio, Inc
SPECIFICATIONS
Frequency Response
3Hz to 30kHz +1/-3d
Polar Pattern
Omnidirectiona
Sensitivity
34mV/Pa (T pical
Power Requirements
24-48V Phantom, 10m
Peak Acoustic Input
140dB SP
Output
XLR-3
Output Impe d anc 
6 5 Ω , balanced between pins 2
& 
M inimum Output L oa 
6 00 Ω , balanced between pins
2 & 
Nois 
20dB SPL (A weighted
D imension 
6 .5 x .8 6 0 in. (1 6 5 x 22 mm
Wei gh t
.3lb (1 6 0g)
Q TC 30
Omnidirectional Microphone