Shure A88SM User manual

The Shure Model A88SM Microphone Isolation Mount is
designed especially for use where exceptional freedom
from mechanically transmitted noise is a necessity. Through
its use of Shure’s highly effective Shock-Stopperhalf-
mount isolators and secure cable locking design, the
A88SM eliminates most noise associated with stands,
booms, and cable movement. Designed expressly for
Shure’s VP88 MS Stereo Condenser Microphone, the
A88SM can also be used with any microphone with a handle
diameter of approximately 27 mm (11/16 in.).
The A88SM offers several features that make it a versatile
accessory for studio and location miking (see Figure 1). As
supplied, the mount contains a locking “foot”-type slide-in
mount (1) for instant attachment to most ENG cameras with
a mounting “shoe.” A simple twist knob (2)–which also pro-
vides positive-locking vertical angle adjustment–permits re-
moval of the foot and attachment of a swivel with both 5/8”-27
and3/8”-16 tapped threads (3) for attachment to most micro-
phone stands and booms. In addition to the foot-type slide-in
mount, the following are provided.
•A threaded adapter (4) is supplied to convert the swivel’s
5/8”-27 thread to a 5/16”-18 thread.
•A screw-type camera adapter (5) permits mounting to
cameras with 1/4”-20 tapped mounting holes instead of
mounting shoes.
•A pistol grip adapter (6) allows the A88SM to be used with
several popular microphone pistol grips.
CAMERA ATTACHMENT
The A88SM is attached to most shoe-mount ENG camer-
as by inserting the flat slide of the foot (1) in the camera’s
top- or side-mount shoe and securing it with the knurled
locking nut.
Snap the microphone handle into the the A88SM as
shown in the photo above, making certain the microphone is
properly balanced and, in the case of stereo microphones,
correctly aimed with regard to stereo pickup (refer to micro-
phone data sheet for positioning information). Adjust the
vertical angle by loosening the knob (2), positioning the mi-
crophone, and tightening the knob.
Before attaching the microphone cable, slip a loop of
cable through the slot in the A88SM and hook the loop over
the protruding disc and post (see Figure 2). Pull the loop
tight against the post. Leaving a small amount of slack in the
cable, connect it to the microphone. Note that the slot and
post are sufficiently large to accommodate the two-cable “Y-
splitter” of the Shure VP88.
If the A88SM is to be mounted on a camera with a 1/4”-20
thread mounting hole instead of a mounting shoe, insert the
supplied screw-type camera adapter (5) in the hole and se-
cure it with the knurled locking nut. Insert the A88SM in the
adapter shoe as above.
MODEL A88SM MICROPHONE ISOLATION MOUNT
FIGURE 1
Model A88SM User Guide
27B2502 (BA)
E2002, Shure Incorporated Printed in U.S.A.

CABLE SECURING
FIGURE 2
BOOM OR STAND ATTACHMENT
Remove the foot-type mount (1) from the A88SM frame
by unscrewing the knob (2) holding it in place and sliding the
foot out of the frame. Insert the swivel (3) in the foot mount
slot, replace the knob, and tighten the knob securely.
Attach the swivel to any 5/8”-27 or 3/8”-16 thread micro-
phone boom or stand, or to any 5/16”-18 thread boom or
stand using the supplied adapter (4). Loosen the adjustment
knob, position the A88SM in the desired direction, and tight-
en the knob. Insert the microphone, and secure and attach
the cable as described above.
PISTOL GRIP ATTACHMENT
To use the A88SM with certain popular pistol grips such
as those made by Rycote and Sennheiser, remove the foot
mount (1) from the A88SM frame by removing the knob (2)
and sliding the foot mount out of the frame. Four aluminum
washers are supplied with the A88SM. Insert the pistol grip
adapter (6) with the two thin washers in the frame slot (see
Figure 3), replace the knob, and tighten it securely. Insert the
pistol grip adapter in the Rycote pistol grip frame and tighten
it securely.
If a Sennheiser pistol grip is to be used, insert the pistol
grip adapter in the pistol grip with both thick aluminum wash-
ers. Then tighten the pistol grip locking screw.
PISTOL GRIP MOUNTING
FIGURE 3
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