Earthworks SR40V Users Manual

Technical Support

Should you have any questions regarding your
SR40V microphone please contact us:

e-mail: [e-mail]
phone: [phone], ext. 19
(9am – 5pm ET)

For warranty and product return/exchange in­formation please refer to the back of the en­closed Calibration Chart.

FIFTEEN-YEAR WARRANTY
All Earthworks products (excluding acces­sories) carry a fifteen-year limited warranty
(parts and labor). If you have any problems
with your Earthworks products, please con­tact our warranty/repair department by email
at: [e-mail] or by tele­phone at [phone], Ext. 19.

Earthworks, Inc.

37 Wilton Rd.

Milford, NH 03055 USA

Phone: [phone]

Fax: [phone]
earthworksaudio.com

Made in U.S.A.

Printed in U.S.A.

The World’s First High Denition

Vocal Microphone

Description

Earthworks SR40V is a directional pre-po­larized condenser microphone with a first-order
hypercardioid pickup pattern directly coupled to
a dedicated wide band, low output impedance
transformerless preamplifier. The SR40V re­quires standard 48V Phantom Power. It features
a flat frequency response from 80Hz to 40kHz
(Fig. 2), fast impulse response (Fig. 3), very low
handling noise, near-perfect polar response, and
high SPL handling. The SR40V is excellent in
rejecting sounds at the rear of the microphone
and providing more gain before feedback in live
sound applications.
Each SR40V microphone is thoroughly tested
and measured to insure it meets its exceptional
specifications. A mounting clip is included with
the microphone. The SR40V is protected by US
Patent No. 6,091,829.

preserving the subtle nuances of artistic expres­sion. It is excellent in rejecting sounds from the
rear of the microphone and providing more gain
before feedback in live sound applications.

Care of Microphones

The Earthworks SR40V 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
SR40V:

• Never attempt to disassemble the microphone

– it cannot be opened.

• Avoid extreme heat and condensing humidity.

Allow the microphone to warm up to room tem­perature when bringing it inside from the cold
weather.

• Rough handling may also damage the micro­phone even if no visible marks are left.

Fig. 1. XLR Output Connector Assignment of SR40V

Fig. 2. Frequency Response (Typical) of SR40V

Applications

Earthworks SR40V is easy to operate. Connect
the microphone to a microphone preamplifier
supplying 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 cause
a “pop” in the audio or recording system when
initially plugged in or powering up. Make sure to
mute the signal to speakers or headphones when
phantom power is first applied to the microphone.
The excellent performance of the SR40V make
it an exceptional vocal microphone in the studio
or on the stage, and is an ideal choice for vocals,
voice-overs and instrumental applications. The
SR40Vs extended frequency response, fast im­pulse response and short diaphragm settling time
allow it to capture explosive performances while

Version 1, July 6, 2011

• When not in use keep the SR40V in its case.

Specications

Frequency response: 30Hz to 40kHz ±1.5dB
at 1 foot (30cm)

Polar Pattern: Hypercardioid (Fig. 4)
Sensitivity: 10mV/Pa (-40dBV/Pa)

Power Requirements: 48V Phantom, 10mA
Peak Acoustic Input: 145dB SPL

Output: XLR (Fig. 1)
Output Impedance: 100Ω, balanced

(50Ω ea. pin 2 & 3)
Minimum Load: 600Ω btw. pins 2 & 3

Noise: 22dBA equivalent
Dimensions L x D: 7.25 in. (184mm) long

max diameter 1.95 in. (55.3mm)
min diameter .97 in. (27.5mm)

Weight: 12.8 oz (363g)

Compliant

Specications are subject to change without notice.

Fig. 3. Impulse Response (Typical) of SR40V

Fig. 4. Polar Response (Typical) of SR40V