Instrukcja obsługi Earthworks QTC30

Earthworks mikrofon QTC30

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User’s Guide

Warranty

All Earthworks microphones carry a limited

warranty (parts and labor).

Product Registration

To help you get the most out of your

Earthworks purchase, please take a moment

and register your product with us online at

earthworksaudio.com/register.

Service & Repair

If you have any problems with your

Earthworks products, please contact our

Service & Repair Department.

Email: returns@earthworksaudio.com

Telephone: (603) 654-2433, ext. 119

MADE IN USA

™

Printed in USA

earthworksaudio.com

July 11, 2018

Frequency Response of QTC30 (typical)

Description

The Earthworks QTC30 is an omnidirectional (pressure)

pre-polarized condenser microphone directly coupled to a

dedicated wideband, low output impedance preamplier.

The QTC30 requires a standard 24-48V phantom power

supply. It features an extended linear free-eld frequency

response from 3Hz to 30kHz, extremely fast impulse re-

sponse, low self-noise, very low handling noise, uniform

polar pattern, and high SPL handling capabilities. It exhibits

no proximity effect.

Each microphone is delivered with its own calibration chart

providing the individually measured frequency response

curve. A mounting clip is included with the microphone.

Applications

The Earthworks QTC30 is easy to operate. Connect the mi-

crophone to a microphone preamplier supplying 24-48V

phantom power using a standard XLR microphone cable.

Please allow up to one minute for the microphone to settle.

Plugging in the microphone “hot” (phantom power already

present at the input) will not damage the microphone, and

is actually preferred for faster settling. It is normal for any

phantom powered mic to “pop” when plugged in or pow-

ered up. Make sure to mute the signal to speakers or head-

phones when phantom power is rst applied.

The QTC30 is designed for recording quieter sources such

as vocals, strings, woodwinds, and distant-miked orches-

tras or choirs. The QTC30 will faithfully reproduce sound

with impeccable detail and does not exhibit the typical

problems and limitation exhibited with conventional mi-

crophones. Its fast impulse response and diaphragm set-

tling time results in very natural and uncolored sound. The

QTC30 is also an excellent room mic for ambiance in the

studio and for recording rehearsals and performances. This

microphone has no removable parts.

Care of Microphone

Earthworks QTC30 microphone is a precision instrument

designed and built to provide years of top performance.

Following these simple rules will help to protect your invest-

ment in the QTC30:

Avoid touching the front protective screen.

Never attempt to disassemble the microphone –

it cannot be opened.

Avoid extreme heat and condensing humidity. Allow the

microphone to warm up in the case when bringing it in

from the cold weather.

Rough handling may damage the microphone even if no

visible marks are left.

When not in use keep the QTC30 in its case.

•

XLR Output Connector Assignment of QTC30

Specications

Frequency response: 3Hz to 30kHz +1/-3dB

Polar Pattern: Omnidirectional

Sensitivity: 34mV/Pa (Typical)

Power Requirements: 24-48V Phantom, 10mA

Peak Acoustic Input: 140dB SPL

Output: XLR-3

Output Impedance: 65Ω, balanced between pins 2 & 3

Minimum Load: 600Ω between pins 2 & 3

Noise: 20dB, A equivalent

Dimensions L x D: 165 x 22 mm (6.5 x .860 in.)

Weight: 160g (.3lb)

Impulse Response of QTC30 (typical)

Polar Response of QTC30 (typical)

Specications are subject to change without notice.

Specyfikacje produktu

Marka:	Earthworks
Kategoria:	mikrofon
Model:	QTC30
Kolor produktu:	Stal nierdzewna
Wysokość produktu:	165 mm
Technologia łączności:	Przewodowa
Częstotliwość mikrofonu:	3 - 30000 Hz
Czułość mikrofonu:	-29 dB
Impedancja mikrofonu:	65 Ω
Typ kierunku mikrofonu:	Wielokierunkowy
Interfejs urządzenia:	XLR-3
Model:	Mikrofon instrumentalny
Zużycie energii:	10 mA
Liczba dołączonych produktów:	2 szt.
Wyjście XLR:	1
Waga mikrofonu:	160 g
Średnica:	22 mm
Zawiera zacisk:	Tak
Czułość (1 kHz):	34 mV/Pa
Maksymalny poziom ciśnienia akustycznego (1 kHz):	140 dB
Zasilanie Phantom:	24 - 48 V
Równoważny poziom hałasu:	20 dB