
CrashGuard™ CG421
mic isolator for Sennheiser® MD 421
USER GUIDE
Thank you and congratulations on purchasing the Primacoustic CrashGuard™ CG421!
Please take a few minutes to read through this manual. The CG421 is designed to
surround a Sennheiser® MD421 microphone on three sides to attenuate the sound
of nearby cymbals or hi-hat during the recording process. This attenuation allows the
engineer to capture the drum sound without having too much extra sound bleeding
into the recording. Please refer to www.primacoustic.com for various placement
options, benefi ts, and general information. Should you have any questions or
comments, we invite you to send us an email at info@primacoustic.com.
Mounting Position A:
Mounting Position B:
The CG421 is designed to fi t any standard boom arm.
Begin by taking the mic clip off your mic stand boom arm.
Make sure you leave the knurled ring on that usually
comes with most booms. The CG421 comes equipped
with a spare ring in case you do not have one. Push
the CG421 onto the boom arm then screw the mic clip
onto the boom. Do not over tighten. Connect the mic
by passing the cable through the rear access port. The
mic may be articulated up and down. Leave some space
between the mic head (capsule) and the inside of the
CG421. This will reduce any effect the shell may have on
the mic’s polar pattern.
LIMITED WARRANTY
Primacoustic products are guaranteed to be free of manufacturing defects for a period of thirty (30) days after purchase. In the unlikely event that a defect is uncovered, please email info@primacoustic.com or call
604-942-1001 to obtain a return authorization number (RA#) from Primacoustic before the thirty (30) day warranty period expires. Once you have obtained an RA number return the product, freight prepaid, within
fi fteen (15) days after the date the RA number is issued. In the original packaging (or another, affording an equal degree of protection) include all of the following: (1) RA number clearly marked on the returned
package; (2) a copy of the original bill of sale showing proof of purchase from an authorized retail seller; and (3) a written note describing the defect including your name, address, telephone number, email address
and the applicable RA number. You are solely responsible for all shipping and insurance costs for returning the product to Primacoustic, and you will not be reimbursed or compensated for any loss or damage
incurred. Primacoustic will at its discretion repair or replace the product. Should the product be no longer available, Primacoustic reserves the right to exchange this with a product of similar performance and value.
This Warranty shall solely extend to the original owner and is limited to manufacturing defects only and excludes damage due to improper installation, freight handling, wear and tear, abuse, misuse, misapplication,
color fading or deterioration due to prolonged exposure to ultra violet light, smoke, humidity or other environmental factors. It is understood that the use and suitability of the product is entirely the responsibility of
the buyer and as such, these parties agree to hold Primacoustic, or its associated company, and/or offi cers, harmless from any responsibility whatsoever other than what is clearly outlined in this warranty. This
warranty gives you specifi c legal rights, and you may also have other rights, which may vary depending on where you live and where the product was purchased.
Primacoustic is a division of Radial Engineering Ltd.
1588 Kebet Way, Port Coquitlam, BC Canada V3C 5M5
www.primacoustic.com
Tel:604-942-1001 • Fax:604-942-1010 • info@primacoustic.com
Specifi cations and appearances subject to change without notice.
Copyright © 2010, all rights reserved. User Guide part #: R870 XXXX 00