Superlux PRA-518AS User manual

PRA518 SERIES
User Guide
Gooseneck
Condenser Microphone
GOANG-FANN CO.,LTD.
2007, SUPERLUX I
LB10518AB01EN (Rev. 1)
nc.
Specifications
Max. SPL (1 k load)Ω
130dB SPL (THD 1% 1kHz)≦
Dynamic range at 1 k LoadΩ
104dB
9 to 52 VDC phantom power
Power supply
Current consumption
3mA
Polarity
Integral 3 pin male XLR type
Connector
Black finish
Finish
Net weight
PRA518AS: 130g (4.59 oz.)
PRA518AM: 150g (5.29 oz.)
PRA518AL: 165g (5.82 oz.)
PRA518BM: 150g (5.29 oz.)
PRA518BL: 165g (5.82 oz.)
Back Electret
Condenser Microphone
Type
Pressure gradient,
FET preamplifier
Element
Polar pattern
50 to 16,000 Hz (Figure 2)
Frequency response
Sensitivity
(at 1,000 Hz Open Circuit Voltage)
-39dBV/Pa (11mV/Pa)
1Pa=94dB SPL
200Ω
Rated impedance
1000Ω
Minimum load impedance
Equivalent noise level
(A-weighted)
26dB (IEC/DIN 651)
Unidirectional (cardioid),
rotationally symmetrical about
microphone axis, uniform with
frequency. (Figure 1)
Model (figure 3)
PRA-518AS
Max. 19mm, head 8mm,
total length 300mm, all flexible
gooseneck.
Φ¯
PRA-518AM
Max. 19mm, head 8mm,
total length 450mm, 2 sections
of flexible goosenecks.
ΦΦ
PRA-518AL
Max. 19mm, head 8mm,
total length 600mm, 2 sections
of flexible goosenecks.
ΦΦ
PRA-518BM
Max. 19mm, head 8mm,
total length 450mm, 1 section of
flexible gooseneck.
ΦΦ
PRA-518BL
Max. 19mm, head 8mm,
total length 600mm, 1 section of
flexible gooseneck.
ΦΦ
Frequency Response
FREQUENCY IN Hz
RELATIVE RESPONSE IN dB
dB
10
-10
-20
20 50 100 200 500 1000 2000 5000 10000 20000 Hz
0
PRA518 SERIES
TYPICAL POLAR PATTERN (Figure 1)
250 Hz
500 Hz
1000 Hz
2000 Hz
4000 Hz
8000 Hz
PRA518 SERIES
TYPICAL FREQUENCY RESPONSE (Figure2)
PRA 518BM
PRA 518AL
PRA 518AM
PRA 518AS PRA 518BL
Dimensions (Figure3)
Features
Description
PRA518 series are super-miniature gooseneck back electret condenser
microphones for conferences. They are designed to fit for the demands of
conferences in tailored frequency response, excellent cardioid polar
pattern, and high gain before feedback.
PRA-518 features innovated goosenecks that hardly have any noticeable
noise in flexing. Three lengths and three flexible modes are available to
suit different applications.
The supplied standard accessories intend for the fixing and installation
of general applications, while optional accessories are availed for
special applications.
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Extended frequency response and wide dynamic range to pick up
vocals accurately.
Balanced output to guarantee the long cable free of noise.
Three lengths and three flexible modes for different applications.
Unnoticeable head with diameter of 8mm, never block the user.
Supplied with standard base for conference and foam windshield.
HM22
Standard base
S04
Foam windshield
Accessories
Supplied accessories
Optional accessories
Standard base ------------------- HM22
Foam windshield --------------- S04-
Gooseneck microphone base --------------- ------------ DS002
XLRF embedding socket with naked cable ends --- ---HM24
XLRF embedding socket with XLRM input ---------- -------HM24C
Anti-shock cover with lock-in device ----------- ------- HM23
XLR3F socket ------------------------------- -------- K3F2
XLR3F fixing base ---------------------- -------------- GT6F
------
---------
----
-------
---------
----
HM23
Anti-shock cover
with lock-in device
K3F2
DS002
Gooseneck
microphone base
JUST PLAY IT
Pin 2 output positive voltage
(related to pin 3) when diaphragm
receives positive pressure.
(Diaphragm moving inward)

HM24
XLRF embedding
socket with naked cable ends GT6F
XLR3F fixing base
HM24C
XLRF embedding
socket with XLRM input
HM22
HM24
HM23
HM24C
12
3
12
3
RED(+)
SHIELD
BLACK (-)
12
3
12
3
RED(+)
SHIELD
BLACK (-)
RED(+)SHIELD
BLACK (-)
20mm
74mm
15mm
74mm
20mm
50mm
60mm
50mm
HM23 HM22
Assembling Diagram
Assemble dimensions
Extremely light weight diaphragm, very sensitive to sound. Very small versions
available for hiding applications. High performance condenser microphones are
regarded as standard equipment of recording studios for extreme detail capturing.
Operates with power, such as phantom or battery.
Knowing your microphone
Superlux provides variety selection of microphones for professionals and amatures. To
know your microphone is the first step to successful result.
Type of transducer
Condenser
Condenser microphones work with power. Professional standard is 48VDC phantom
power. Some microphones work with lower voltage as low as 1.5VDC, such as battery
power model. PRA518 SERIES work with 9~52VDC phantom only. Please make sure
your sound system provide adaquate power to the microphone.
Powering microphone
About Frequency Response
Suitable for working at controlled environment, or for acoustic measurements.
Although people persuit flatness, but for none-professionals, it is a challenge to makes
it works as expectation.
Flat
Based on years of practical experience of pro users. There are curves to be build for
various applications, so that it is very simple to use the microphone for the purpose.
Limiting bandwidth, and emphasing are typical skill.
Popular curve response
Incorporating switchable filters to elliminates interference, such as sub-sonic filter to
cut air-conditioner and floor vibrations. And allows full flat when used in controlled
environment.
Variable response
Directivity
Picks up most signal on axis. Rejects side and picks up least to the back. Suitable for
live sound re-inforcement. Apparent proximity effect and most singer likes to take this
bass boost advantages which is not good for speech.
Cardioid
Maintainence
Uni-directional condenser microphone features very high sensitivity at -39dBV/Pa for
high intelligible speech application. Reduced off-axis sensitivity to keep lower
background noise and maximized on-axis sensitivity for highest gain before feedback
in live sound system.
User shall keep 15 cm to 40 cm from microphone, and maintain average speech level.
Up close will result excessive bass due to proximity effect which interfere intelligibility.
Maintain their speaking in front of the microphone for high gain before feedback.
Quality conference microphone incorporating built-in limiter to prevent distortion due
to exciting user or close up speaker.
Choices of gooseneck for various demands. For aesthetic, single or double bend
goosenecks are better choice over fully bend design. Low bending noise is another
important feature of good gooseneck microphone. User shall not bend the gooseneck
to hard or rush which may generate excessive noise which disturbs the audience.
In most cases, each attendee has his own microphone or share a microphone every 2
attendee. Although there are numbers of microphones in one space which is not a good
criterion for feedback problem, system operator shall keep as less turn-on microphone
as possible for best result. Auto-mixer is a good choice for multiple microphones
installation which limit the number of turn-on microphone at the one time. Advanced
auto mixer features dynamic threshold and auto gain reduction according to the
number of turn-on microphones to keep the same system gain.
Wind screen is vital for windy environment such as outdoor or close to air-conditioning
fan.
Keep capsule and wind screen clean for good audio performance.
Condenser microphone shall be kept in low humidity environment for best sound
performance. Store the condenser microphones in airconditioned room or dehumidifier
to keep away form moisture. Clean air is another important factor. Keep away from
smoking environment to avoid tar residuals.
Using condenser gooseneck microphone
GF
PRO AUDIO
Shanghai Shenzhen Taipei••
Tel [phone]:
Fax [phone]:
E-mail [email protected]:
Http://www.superlux.com.tw
GOANG-FANN CO.,LTD.
3F, No.7,Alley 2, Lane 342, Fu-Der 1st Road
Hsichih, Taipei, Taiwan