Earthworks CTF User manual

User’s Guide
CTF
Tabletop Gooseneck
Microphone with
Integrated Base

CTF Tabletop Gooseneck Microphone with Integrated Base
The CTF microphone provides a exible microphone solution,
allowing you to either temporarily place the microphone on a table
for ad hoc meeting spaces or permanently afx it to a surface.
Optimized for speech, the CTF microphones feature a at
frequency response out to 30kHz that delivers the highest level
of speech intelligibility and articulation. This means less straining
to understand the words being spoken due to poor audio quality,
so more time can be spent understanding the message being
transmitted.
Whether speaking directly on-axis or to the sides of the microphone,
the CTF microphone always reproduces the speaker’s voice with
incredible clarity and intelligibility. This wider coverage also means
that fewer Earthworks microphones are required to properly cover
a conference room, cutting down on the number of channels of
DSP, cables and other ancillary equipment required for the system.
Compatible with all DSP systems that provide 24-48V phantom
power, the CTF microphones can easily integrate into existing
system designs or new installations.

Polar Response
500
1K
2K
4K
8K
15K
Frequency Response: 20Hz - 30kHz
Polar Pattern: Cardioid
Sensitivity: 20mV/Pa (-34dBV/Pa)
Power Requirements: 24-48V Phantom, 10mA
Max Acoustic Input: 139dB SPL @ 1kHz
Noise: 16dB SPL (A weighted)
Output: XLR-3M (pin 2+)
Min. Output Load: 1K between pins 2 & 3
Base Dimensions: 4.1 x 4.1 x 0.45 inches
(104.1 x 104. 1 x 11.4 mm)
Cable Length: 10’ (3.04m)
Connector Type: XLR-3M
Weight: 0.5 lbs (226g)
Specications subject to change without notice
Specications

Coverage Area
Top View
Standing Seated

+
-
╧
Red
Black
White
Shield
(pin 2)
(pin 3)
(pin 1)
(pin 1)
Output Cable Connection
for XLR-3 Connector
Keyhole Mount
6-32 Mounting
Holes
Bottom of Microphone
Rubber Foot
Placement & Installation
The CTF microphone comes with a low prole 10 ft. (3.04m) output cable with
installed standard XLR3-M connector. A keyhole is included on the bottom of the
CTF, so it can be secured to a tabletop or at surface. If changing the output
connector is required, use the supplied connection information below.
Template for Mounting Holes
[63.50mm]
Ø 2.5in
[4.76mm]
Ø .188in
[36.51mm]
Ø 1.438in
[25.40mm]
Ø 1.0in
[4.76mm]
Ø .188in
[104.14mm]
Ø 4.1in
Side View
6-32 screws must not protrude more than 3/16” [4.76mm]
through surface to avoid damage to microphone ange

Dimension Drawings
Cable Length 10 ft. (3.04m)
with Installed XLR-3M
(dimensions shown in inches)
0.097
Cable Diameter
0.798
2.815
4.10
.460
.140
.025
Permanently Installed on Table
with XLR Connector Removed
Permanently Installed on Table
with XLR Connector Attached

Earthworks Inc • 37 Wilton Road, Milford, NH 03055, USA
Email: [e-mail] • Phone: [phone] • Fax: [phone]
Warranty
All Earthworks microphones carry a limited warranty (parts and
labor). Please visit earthworksaudio.com/warranty for details.
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: [e-mail]
Telephone: [phone], ext. 119