3
Dimensions
See Figure 5
(13/16 in.)
20 mm
(5-7/16 in.)
138 mm
ÂÂ
ÂÂ
ÂÂ
Â
Â
Â
Â
ÂÂ
11.9 mm
(15/32 in.)
31.8 mm
(1-1/4 in.)
98 MICROPHONE
ILP–1 PREAMPLIFIER (SM98A)
WM98: 1.52 m (5 ft)
SM98A: 4.6 m (15 ft)
OVERALL DIMENSIONS
FIGURE 5
TA3F
TA4F
(WA330)
WM98 STANDARD TEST CIRCUIT
FIGURE 6
1
2
4
3
5V
20 K
V out
1.0
µ
F
100 K
+
–
INSTALLATION
To mount the 98 in the supplied swivel adapter:
1. Mount the adapter on a microphone stand.
2. Attach the microphone to the connector.
3. Slip the cable through the slot in the adapter. Slide the connec-
tor back through the hole until the protruding black cable lock
button is in the open slot and the back of the microphone itself
stops flush with the front of the holder. Only the silver metal seg-
ment of the connector is held by the holder (see Figure 7).
SWIVEL ADAPTER MOUNTING
FIGURE 7
4. Slide the cable through the slot in the cable guide and make a
large loop (see Figure 8). Then route the cable away from the
stand to prevent transmission of noise and vibration through
the cable.
CABLE RETAINED IN GUIDE
FIGURE 8
5. Tilt the adapter to aim the microphone as desired.
6. To remove the microphone without disturbing the swivel adapt-
er and cable, reach into the open slot of the adapter and press
the cable-lock button while disengaging the microphone.
PREAMPLIFIER PERMANENT MOUNTING (SM98A)
The supplied mounting clamps are intended to hold the pre-
amplifier in place in permanent installations (see Figure 9). Use
either one or two clamps depending on location and application.
MOUNTING CLAMPS – SM98A PREAMPLIFIER
FIGURE 9
PREAMPLIFIER SWITCHES
The preamplifier case contains two miniature recessed slide
switches. In the Lo Cut position, the Flat/Lo Cut switch provides
a 12 dB rolloff below 80 Hz (see Figure 1). The effects of the 0/+10
dB Gain switch are described in the Preamplifier Output Clipping
Level specifications.
INSTALLING THE A98SPM
The A98SPM Supercardioid Polar Modifier is supplied with
the SM98A . To mount the microphone in an A98SPM Polar Modi-
fier, proceed as follows.
IMPORTANT
The white internal element of the A98SPM is essential
to maintaining the supercardioid polar pattern. Do not
remove it!
1. Unscrew the rear support from the front support by turning the
rear support counterclockwise (from bottom). See Figure 10.
2. Insert the microphone (cable not connected) into the rear sup-
port with its connector end contacting the support.
3. Attach the front and rear supports together by turning the rear
support clockwise (from bottom). Tighten sufficiently to prevent
rattling.
CAUTION
Do not overtighten. Damage to the internal element
may result.
