Description
Earthworks TC25 is an omnidirectional
(pressure) pre-polarized condenser mi-
crophone directly coupled to a dedicated
wideband, low output impedance pream-
plifier. The TC25 requires a standard 48V
phantom power supply. It features a linear
free-field frequency response from 9Hz to
25kHz (Fig. 2), fast impulse response (Fig.
3), very low handling noise, uniform polar
pattern, and very high SPL handling capa-
bilities. It exhibits no proximity effect.
Applications
Earthworks TC25 is easy to operate. Con-
nect the microphone to a microphone pre-
amplifier supplying 48V phantom power
using a standard XLR microphone cable.
Please allow up to one minute for the mi-
crophone to settle. Plugging in the mi-
crophone “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 first applied.
The TC25 is designed specifically for
drums and percussion and is the model
that comes in the Earthworks Drumkit™
System. The TC25 has a brilliance that is
ideal for drum overheads, percussion, Les-
lie, guitar and bass. It is a versatile micro-
phone great for general studio use and is an
exceptional value. It has no handling noise,
no proximity effect, and is very forgiving
in terms of placement.
A mounting clip is included with the mi-
crophone.This microphone has no remov-
able parts.
Care of Microphones
Earthworks TC25 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 TC25:
•Avoidtouchingthefrontprotectivescreen.
•Neverattempttodisassemblethemicro-
phone – it cannot be opened.
•Avoidextremeheatandcondensinghu-
midity.Allow the microphone to warm up
in the case when bringing it in from the
cold weather.
•Roughhandlingmaydamagethemicro-
phone even if no visible marks are left.
•WhennotinusekeeptheTC25initscase
Specications
Frequency response: 9Hz to 25kHz +1/-3dB
Polar Pattern: Omnidirectional (Fig. 4)
Sensitivity: 8mV/Pa (Typical)
Power Requirements: 48V Phantom, 10mA
Peak Acoustic Input: 145dB SPL
Output: XLR-3 (Fig. 1)
Output Impedance: 100Ω, balanced
(50Ωea. pin 2 & 3)
Minimum Load: 600Ωbtw. pins 2 & 3
Noise: 27dBA equivalent
Dimensions L x D: 6.5 x .860 in.
(165 x 22 mm)
Weight: .35lb (160g)
Compliant
Fig 1. XLR Output Connector Assignment of TC25
Specications are subject to change without notice. Fig 4. Polar Response (Typical) of TC25
Fig 3. Impulse Response (Typical) of TC25
Fig 2. Frequency Response (Typical) of TC25
Version 4, July 7, 2011
