Instrukcja obsługi Shure SM93

Shure mikrofon SM93

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Models WL93 and SM93 User Guide
©2012 Shure Incorporated
27D3106 (Rev. 6)
Printed in U.S.A.
GENERAL
Shure Model WL93 and SM93 Microphones are omnidirectional,
subminiature, lavalier electret condenser microphones. Their
visually unobtrusive design and tailored frequency response make
them ideal for body-worn applications in TV broadcasting, theater,
and sound reinforcement. Both the Model WL93 and the SM93
feature a small microphone element that provides full, clear sound
comparable to that of much larger microphones.
The WL93, intended for wireless use, connects directly to a Shure
wireless body-pack transmitter. The SM93, intended for wired
applications, includes a preamplifier assembly for connection to
three-pin professional (XLR) audio connectors. The SM93 requires
phantom power, and operates over a range of 11 to 52 Vdc,
covering both DIN and IEC phantom power standards.
FEATURES
• Subminiature lavalier design; ideal size for theater, television
broadcasting, video, film, and sound reinforcement
• Small, inconspicuous mounting hardware
• Full, clear sound comparable to larger microphones
• Smooth extended frequency response with presence rise special-
ly tailored for chest-worn microphone operation
• Controlled low-frequency rolloff reduces low-frequency clothing
and room noise
• Low distortion, wide dynamic range
• Uniform omnidirectional polar pattern
• Preamplifier assembly (SM93) can be pocketed, strapped to the
body, or clipped to belt or waistband
• Wide-range phantom powering (SM93) accepts all commonly
used voltages
VARIATIONS
CONNECTIONS
Connect the male, four-pin miniature connector (TA4M) at the end
of the 93 microphone cable to the supplied preamplifier (SM93) or
to a Shure wireless body-pack (WL93).
NOTE: Do not connect the 93 microphone directly to a mixer
without using the supplied preamplifier or body-pack.
MOUNTING THE MICROPHONE
The tie clips and mounting bracket provided with the WL93 and
SM93 allow the user to wear the microphone in a variety of ways.
To achieve optimum pickup, attach the microphone to the user's
chest. You can also obtain high-quality sound when the
microphone is worn in the hair, sewn into clothing, or attached to
an acoustic instrument such as a guitar.
•
Tie Clip.
A spring-loaded clasp attaches easily to a necktie, lapel,
blouse, or shirt. Snap the microphone into the clip's mounting
bracket and attach the clip to an article of clothing. The dual tie
clip supplied with the SM93 provides simultaneous mounting of
two microphones.
•
Sew-On Bracket.
Sew the supplied sew-on mounting bracket
directly to a garment (Figure 1). Use dark or light thread as
necessary to match the color of the bracket.
SEW-ON MOUNTING
FIGURE 1
MOUNTING THE SM93 PREAMPLIFIER
Use the spring-loaded belt clip to hold the amplifier to a belt, skirt
or trouser waistband, or inside pocket.
WINDSCREENS
An acoustic foam windscreen is supplied to help reduce
undesirable wind noise associated with outdoor miking.
Version Cable Color
WL93 1.2 m (4 ft.) Black matte microphone and ca-
ble with black accessories
SM93
WL93-6 1.8 m (6 ft.)
WL93T 1.2 m (4 ft.) Tan matte microphone and cable
with tan accessories
WL93-6T 1.8 m (6 ft.)
2
POWERING THE SM93 PREAMPLIFIER
Power the preamplifier supplied with the SM93 using any phantom
supply providing 11 to 52 Vdc, such as the Shure Model PS1A
Power Supply.
SM93 PREAMPLIFIER IMPEDANCE
Use a minimum load impedance of 800 or greater for maximum
signal handling and minimum distortion. Load as low as 150 can
be used, but a reduction in output clipping level will result. Note that
the power supply itself may add loading (3300 in the Shure
PS1A) to the microphone.
USING OTHER PREAMPLIFIERS OR BODY-PACKS
If connecting the 93 microphone to anything OTHER than a Shure
wireless body-pack or the preamplifier supplied with the SM93,
make sure it provides a regulated +5 Vdc source (40 A minimum)
at pin 2 of the microphone connector, as shown in Figure 2.
MICROPHONE WIRING DIAGRAM
FIGURE 2
*Produces positive voltage at pin 2 of Shure L4/EC4 wireless receiver three-pin connector.
CONDENSER
CARTRIDGE
IMPEDANCE
CONVERTER
G
SHIELD
BLK
RED
S
D+
4
1
2
3
SPECIFICATIONS WL93 MICROPHONE (with standard test circuit
shown in Figure 3)
SM93 MICROPHONE (with preamplifier)
Type Condenser (electret bias) Condenser (electret bias)
Frequency Response (Figure 4) 50 to 20,000 Hz 80 to 20,000 Hz, 12 dB/octave rolloff below 100 Hz
Polar Pattern Omnidirectional, uniform with frequency Omnidirectional, uniform with frequency
Output Impedance 3000 Rated at 150 (90 actual)
Recommended minimum load impedance: 800 (May be
used with loads as low as 150 with reduced clipping level)
Output Level
(1 Pascal = 94 dB SPL)
Open Circuit Voltage: –38 dBV/Pa
(13 mV)
Open Circuit Voltage: –43 dBV/Pa (7.0 mV)
Output Clipping Level
(at 1,000 Hz)
0.25 V at 120 dB –18 dBV (0.13 V) minimum
Total Harmonic Distortion Less than 1% at 120 dB Less than 1% at 120 dB
Maximum SPL 120 dB 120 dB
Dynamic Range (maximum SPL to
A-weighted noise level)
102 dB 98 dB
Output Noise (equivalent SPL) 18 dB typical, A-weighted 22 dB typical, A-weighted
26 dB, weighted per DIN 45 405
Hum Pickup (electromagnetic) N/A –4 dB equivalent SPL in a 1 mOe field (60 Hz)
Signal-to-Noise Ratio 76 dB at 94 dB SPL (IEC 651) 72 dB at 94 dB SPL (IEC 651)
Polarity Positive pressure on microphone diaphragm
produces positive voltage on pins 3 and 4 with respect
to pin 1 (ground)*
Positive pressure on microphone diaphragm produces
positive voltage on pin 2 relative to pin 3 of preamplifier
output cable connector
Recommended Operating Voltage 2 to 10 V; 5 V nominal (pin 2 to pins 3 and 4) 11 to 52 Vdc phantom. Protected against reverse voltage
application
Current Drain 40 A typical 0.33 mA
Environmental Conditions Operating Temperatures: –18
o to 57o
C
(0o to 135o
F)
Storage Temperatures: –29
o to 74o
C
(–20o to 165o
F)
Operating Temperatures: –18
o to 57o C (0o to 135o F)
Storage Temperatures:–29o to 74o C (-20o to 165
o F)
Cable Black 1.27 m (4.17 ft), attached, two-conductor,
shielded, terminated by miniature connector type
TA4F (WL93T: Tan 1.27 m [4.17 ft])
Black 1.27 m (4.17 ft), attached, two-conductor, shielded,
terminated by miniature connector type (TA4F)
Case Microphone: Black ABS thermoplastic case with
stainless-steel-mesh grille
Microphone: Black ABS thermoplastic case with
stainless-steel-mesh grille
Preamplifier: Steel case with non-reflective black finish,
black-chrome belt clip
Net Weight Microphone: 16 g (0.57 oz)
Microphone:16 g (0.57 oz)
Preamplifier:118 g (4.17 oz)
3
4.1V 86B429
D1
R2
C
C3
1
3
2
P1
L1
2
.6V .1V
.05V
3.5V
D2
86A415
Q1
86A348
R1
R6
C5
33K
Q2
86A350
150 pF
24K
R5
62K
150 pF
C8
C7
1.9V
.1V
B
C6
R4
360K
.047,5%
33X6.3
.047,5%
.05V
BRN
C2
C1
L2
3
1
150 pF
150 pF
YEL
GRNBLK
WHT
1. ALL RESISTORS 5%,1/8 WATT, UNLESS OTHERWISE SPECIFIED.
A
NOTES:
2. ALL NON–POLAR CAPACITORS IN µF, TOLERANCE 10% AND 50 VOLTS OR MORE
UNLESS OTHERWISE SPECIFIED. POLARIZED CAPACITORS SHOWN IN µF x VOLTS.
T1
D.C. VOLTAGE
A.C. VOLTAGE
3. D.C. VOLTAGES MEASURED WITH 11 MEG INPUT VOLTMETER; A.C. VOLTAGE MEA-
SURED WITH 1 MEG INPUT VOLTMETER. VALUES SHOWN ARE TYPICAL AND MAY
VARY ± 20%.
4. THE FOLLOWING SYMBOLS DENOTE:
CASE GROUND
CIRCUIT BOARD GROUND
13
2
RED
BLK
GRN
4
P2
5. POWER SOURCE IS 21 VDC THROUGH TWO 1.691 KOHM, 1% RESISTORS FROM
SUPPLY TO PINS 2 AND 3 OF CONNECTOR P1.
6. INPUT SIGNAL OF 0.1V AT 2 KHZ
APPLIED TO CIRCUIT BELOW:
.1V
A
B
C
18K
1.2K
10x10
FURNISHED ACCESSORIES
Preamplifier (SM93) ..................................................... 90A4360
Black Windscreen (WL93, SM93) .............................RK355WS*
Black Tie Clip Assembly (WL93, SM93) ....................RK354SB*
Dual Black Tie Clip Assembly (SM93) ........................RK307DB
Tan Windscreen (WL93T) ..........................................RK304T**
Tan Tie Clip Assembly (WL93T)..................................RK304T**
Black Sew-on Mounting Bracket (WL93, SM93) .......... 65B1733
Tan Sew-on Mounting Bracket (WL93T) ....................65B1733A
Zippered Carrying Bag ..................................................... 26A13
*Replacements furnished in multiples of 4.
** RK304 includes 2 tie clips and 2 windscreens.
OPTIONAL ACCESSORIES
In-Line On/Off Switch ...................................................... WA360
CERTIFICATION
Eligible to bear CE Marking. Conforms to European EMC Directive
89/336/EEC. Meets applicable tests and performance criteria in
European Standard EN 55103 (1996) parts 1 and 2, for residential
(E1) and light industrial (E2) environments.
TEST CIRCUIT
FIGURE 3
TYPICAL FREQUENCY RESPONSE
FIGURE 4
OVERALL DIMENSIONS
FIGURE 5
1
2
4
3
+5V
20 K
V out
2.2 F
500 1,000 2,000 5,000 10,000 20,00050 100 20020
0
+10
–10
SM93
Bd
Hz
0.23 IN.
(5.84 mm) 0.24 IN.
(6.10 mm)
0.37 IN
(9.40 mm)
0.15 IN.
(3.81 mm)
(1–1/16 IN.)
27 mm
(3–29/32 IN.)
18.8 mm
(3/4 IN.)
SM93 PREAMPLIFIER SM93/WL93 MICROPHONE
98.8 mm
SM93 PREAMPLIFIER CIRCUIT DIAGRAM
FIGURE 6

Specyfikacje produktu

Marka: Shure
Kategoria: mikrofon
Model: SM93

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