Superlux PRA528DS - Manual (Page 2)

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Back electrets condenser capsule
Switch control phantom power or battery power operation
High GBF (Gain before feedback)
Detachable base and microphone, plug and play.
Latching microphone on/off push switch
2000 noiseless bending cycle
life tested, 90 degrees bending
with less than 5mm bouncing
back offset.
Metal sturdy base, reducing
structure bound noise
S18
Pop screen
AA(UM3)
1.5V alkaline battery
Base cut (figure 5)
Power
Off
Battery 1.5V
9~52VDC
Phantom Power
Power
Off
Battery 1.5V
9~52VDC
Phantom Power
Features
Supplied accessories
Pop screen ------------------------------------------------ S18
1.5V alkaline battery ---------------------------------------
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. PRA528DS 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
Narrower than cardioid pattern. Suitable for multiple microphone setup.
Least sensitive angle pointing toward side to rear where most stage monitors
are located. Same proximity effect as cardioid microphone.
Super Cardioid
Directivity
Maintainence
Uni-directional condenser microphone features very high sensitivity at -
35dBV/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 o 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
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UDIO
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