Instrukcja obsługi Earthworks QTC40

Earthworks mikrofon QTC40

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July 11, 2018

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

User’s Guide

™

earthworksaudio.com

Pin 1

“Shield”

Pin 2

“+”

Pin 3

“ ”-

Description

The Earthworks QTC40 is an omnidirectional (pressure)

pre-polarized condenser microphone directly coupled to

a dedicated wideband, low output impedance preampli-

er. The QTC40 requires a standard 24-48V phantom

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

frequency response from 3Hz to 40kHz, extremely fast

impulse response, low self-noise, very low handling

noise, uniform polar pattern, and high SPL handling ca-

pabilities. It exhibits no proximity effect.

Each microphone is delivered with its own calibration

chart providing the individually measured frequency re-

sponse curve. A mounting clip is included with the mi-

crophone.

Applications

The Earthworks QTC40 is easy to operate. Connect the

microphone 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 powered up. Make sure to mute the signal

to speakers or headphones when phantom power is rst

applied.

The QTC40 is a premium microphone designed for re-

cording quieter sources such as vocals, strings, wood-

winds, and distant-miked orchestras or choirs. For

classical location recording a matched pair will provide

spectacular results. The QTC40 will faithfully repro-

duce sound with impeccable detail and does not ex-

hibit the typical problems and limitation exhibited with

conventional microphones. Its impulse response and

diaphragm settling time is extraordinary, resulting in the

most pure and uncolored sound.

This microphone has no removable parts.

Care of Microphone

The Earthworks QTC40 High Denition Microphone

™ is a

precision instrument designed and built to provide years

of top performance. Following these simple rules will

help to protect your investment in the QTC40:

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 QTC50 in its case.

•

XLR Output Connector Assignment of QTC40

Specications

Frequency response: 3Hz to 40kHz +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: 229 x 22 mm (9 x .860 in.)

Weight: 225g (.5lb)

Impulse Response of QTC40 (typical)

Polar Response of QTC40 (typical)

Specications are subject to change without notice.

Frequency Response of QTC40 (typical)

Specyfikacje produktu

Marka:	Earthworks
Kategoria:	mikrofon
Model:	QTC40
Kolor produktu:	Stal nierdzewna
Wysokość produktu:	229 mm
Technologia łączności:	Przewodowa
Częstotliwość mikrofonu:	3 - 40000 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:	225 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