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3

Dimensions

See Figure 5

(13/16 in.)

20 mm

(5-7/16 in.)

138 mm

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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.

Содержание SM98A

Страница 1: ... pin connectors and an acoustic foam windscreen to minimize wind noise in outdoor applications and from air moving equipment The Shure ILP 1 low distortion high clipping level phantom powered preamplifier is furnished with the SM98A microphone Additional included accessories are a windscreen for use with the microphone alone and a windscreen for use with the A98SPM a shock mount swivel adapter and...

Страница 2: ...ng N A Flat Lo Cut Preamp switch Lo Cut 12 dB rolloff below 80 Hz Phasing Positive pressure on microphone diaphragm pro duces positive voltage on pins 3 and 4 with re spect to pin 1 ground Positive pressure on microphone diaphragm produces posi tive voltage on pin 2 relative to pin 3 of preamplifier output connector Recommended Operating Volt age 1 5 to 6 V pin 2 to pins 3 and 4 11 to 52 Vdc Phant...

Страница 3: ...lot 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 contai...

Страница 4: ...rst Again take care not to pinch the wires connect ing the board to the end cap 3 Rotate the assembly inside the case until the four holes for Phil lips screws line up with the holes in the case 4 Replace the four Phillips screws 5 Resolder the three lead wires to the back of the XLR board as shown in Figure 11 RED BLUE BLACK 2 3 1 WIRING TO XLR PC BOARD TERMINALS FIGURE 11 6 Replace the XLR board...

Страница 5: ... BLACK SHIELD BLUE 98 MICROPHONE TB3M MICROPHONE WIRING DIAGRAMS FIGURE 12 NOTES 1 UNLESS OTHERWISE SPECIFIED ALL RESISTORS ARE 1 8 WATT 5 2 UNLESS OTHERWISE SPECIFIED ALL CAPACITORS IN mF 10 50 V OR GREATER ELECTROLYTIC CAPACITORS SHOWN IN mF X VOLTS 20 3 THE FOLLOWING SYMBOLS DENOTE PC BOARD GROUND CHASSIS GROUND GAIN GRN OR BROW N OR 90B4339C 3 CIRCUIT DIAGRAM SM98A PREAMPLIFIER FIGURE 13 ...

Страница 6: ...www shure com 222 Hartrey Avenue Evanston IL 60202 3696 U S A Phone 847 866 2200 Fax 847 866 2279 In Europe Phone 49 7131 72140 Fax 49 7131 721414 In Asia Phone 852 2893 4290 Fax 852 2893 4055 Elsewhere Phone 847 866 2200 Fax 847 866 2585 ...

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