Superlux PRA528DS User Manual

Specifications

JUST PLAY IT

PRA528DS

Desktop Gooseneck

Condenser Microphone

User Guide

GOANG-FANNCO.,LTD.

2007, SUPERLUX I
LB10528DS01EN (Rev. 1)

Type

Desktop Gooseneck

noise ratio-to- ignal

70 dB

condenser microphone

Power supply

Element

Pressure gradient,
FET preamplifier

Phantom: 12 to 52 Vdc
Battery: 1.5V AA(UM3)

250 Hz

500 Hz

1000 Hz

TYPICAL POLARPATTERN (Figure 1)

2000 Hz

4000 Hz

8000 Hz

Current consumption

Polar pattern

Unidirectional (Super Cardioid),
rotationally symmetrical about
microphone axis, uniform with
frequency. (Figure 1)

Frequency response

50 to 16,000 Hz (Figure 2)

Sensitivity

(at 1,000 Hz Open Circuit Voltage)

-35dBV/Pa (17.8mV/Pa)
1Pa=94dB SPL

Rated impedance

Phantom: 200

Battery: 600ΩΩ

Minimum load impedance

Phantom: 1000
Battery: 600ΩΩ

Equivalent noise level

(A-weighted)

24dB

Max. SPL

Phantom: 124dB SPL
Battery: 114dB SPL
(THD 1% 1kHz)≦

Dynamic range

Phantom: 100dB
Battery: 90dB

nc.

(1 k load)Ω

(1 k Load)Ω

Phantom: 3mA
Battery: 1.2mA (1.5V

battery

900 hrs upward)

alkaline

Output type

Phantom: b
Battery: u

alanced

nbalanced

Polarity

Pin 2 output positive voltage
(related to pin 3) when diaphragm
receives positive pressure.
(Diaphragm moving inward)

Connector

3 pin male XLR type

Finish

Black paint

Environmental conditions

The PRA528DS operates between

-10to+50(14to

???

122 ) with relative humidity

?

between 0 to 95%.

Dimensions

PS418F base: figure 3
PRA528D microphone: figure 4

Net weight

Microphone: 240g (8.45oz.)
Base: 790g (27.85oz.)

P : 1500g(52.90oz.)acking included

dB

10

0

-10

-20

RELATIVE RESPONSEIN dB

20 50 100 200 500 1000 2000 5000 10000 20000 Hz

Frequency Response

FREQUENCY INHz

TYPICAL FREQUENCY RESPONSE (Figure2)

PUSH

PS418F Base

Dimensions (Figure3)

PhantomPower

9~52VDC

Battery1.5V

Power

Off

PRA528D microphone

Dimensions (figure 4)

Description

The PRA528DS is a desktop gooseneck microphone set. It comes
with a sturdy base (PS418F), where a latching push switch
incorporated for microphone on and off control. Underneath the
PS418F, there is a 3-position sliding switch to set the power mode
between external phantom power, power-off, and internal battery
power. The capsule of the PRA528DS is a condenser type, which is
tailored for conference speech applications. The gooseneck
microphone can be easily plugged into PS418F or be removed to
stow away. Complete set of this gooseneck desktop microphone is
shipped with a A3 carrying case.

Features

!

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

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

Directivity

Super Cardioid

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.

!

2000 noiseless bending cycle

life tested, 90 degrees bending

with less than 5mm bouncing

back offset.

!

Metal sturdy base, reducing

structure bound noise

Phantom Power

9~52VDC

Power

Off

Battery 1.5V

Base cut (figure 5)

Phantom Power

9~52VDC

Battery 1.5V

Supplied accessories

Pop screen ------------------------------------------------ S18

1.5V alkaline battery ---------------------------------------

S18

Pop screen

AA(UM3)

1.5V alkalinebattery

Power

Condenser

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.

Off

Powering microphone

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.

About Frequency Response

Flat

Suitable for working at controlled environment, or for acoustic
measurements. Although people persuit flatness, but for none­professionals, it is a challenge to makes it works as expectation.

Popular curve response

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.

Variable response

Incorporating switchable filters to elliminates interference, such as sub­sonic filter to cut air-conditioner and floor vibrations. And allows full flat
when used in controlled environment.

Using condenser gooseneck microphone

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 air­conditioning fan.

Keep capsule and wind screen clean for good audio performance.

Maintainence

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.

PRO AUDIO

GF

Shanghai Shenzhen Taipei••

GOANG-FANN CO.,LTD.

3F, No.7,Alley2, Lane342, Fu-Der 1stRoad
Hsichih, Taipei,Taiwan

Tel [phone]:
Fax [phone]:
E-mail [e-mail]:
Http://www.superlux.com.tw