Superlux S502 User Manual

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S502

ORTF Stereo Microphone

Instruction Manual

Classical Music Recording
Field Recording
Studio Recording
Drum set overhead live sound/recording

S502, ORTF Stereo

The S502 combined a pair of matched cardioid capsules in
the ORTF arrangement - the most popular stereo recording mi­crophone technique for loudspeakers as well as headphoness
reproductions.

Based on the successful S241 and S125 true condenser tech­nology, Superlux exercise the same precision ½” gold coated
diaphragm for the most precision sound pick-up. Simple and
straightforward design provides experienced engineers the most
convenient solution for stereo recording.

S502 includes followings:

A3 plastic carrying box

HM-30 shock mount clip

2 x S20 foam screen

FM0.6AMM 0.6m Y-Splitter Cable, 5-pin female XLR plug con­vert to 2 3-pin XLR male plug.

Optional Accessories:

FM10AMM: 10 meters, stereo XLR5F/XLR5M cable

FM20AMM: 20 meters, stereo XLR5F/XLR5M cable

FM30AMM: 30 meters, stereo XLR5F/XLR5M cable

Features

Ture condenser, precision 1/2” capsules

•

Fix capsules for ORTF standard

•

Sturdy metal body

•

5 pin, balanced output

•

Standard phantom power operation

•

Shock mount included

•

XLR 5 pins female to 2 x XLR 3 pins male plug cable included

•

Excellent stereo image

•

ORTF Stereo Skill:

When recording with ORTF microphone, keep the microphone

•

at least 1 meter away from the ensemble.

Adjust the microphone position so that the room space could

•

be heard, while excellent direct sound is maintained.

Keep the most of the ensembles/orchestra within 90° coverage.

•

Keep the microphone high enough that each instruments/artists

•

has an un-block direct path to the microphone.

Set the PAN control to extreme Left and Right. Do not pan the

•

signal in between L and R.

Choose a high quality recorder, or mixer.

•

Adjust the nominal recording level at about -18dBfs for clas-

•

sical music without compressor/limiter, while keep the peak at
about -3dBfs to -6dBfs.

Always use a shock mount.

•

Specifications

Type Stereo 1/2” true Condenser
Acoustic Pressure gradient

Polar Pattern Cardioid, ref to polar chart lower right
Frequency Response 40~20,000Hz

Sensitivity

(ref. 1Pa or 94dB SPL)

Output Impedance 200Ω

Minimum Load Impedance 1KΩ

Equivalent Noise Level

(A weighted)

Max SPL (THD≤0.5%) 135dB SPL

Dynamic Range 117dB
Signal / Noise Ratio 76dB (IEC651 ref. to 94dB SPL)

Power Phantom 48 Vdc
Drain Current 2.25 mA/CH; 4.5 mA total
Pin Configuration Pin 2/3 CH1, pin 4/5 CH2, pin 1

Finish Metal, black painted finish
Environmental conditions The S502 operates between -10°C to

Cables FM0.6AMM 0.6m Y-Splitter Cable,

Case A3 plastic carrying box
Dimensions Ref. to illustration below.

Net weight 245 grams (0.54 lbs), body only.

Low-cut -3 dB @ 30Hz

-36dBV

18dB SPL

97dB (20dB headroom)

ground. Pin 2/4 hot.

+50°C (14°F to 122°F ) with relative
humidity between 0 to 95%

5-pin female XLR plug convert to 2
3-pin XLR male plug.

Dimensions

184.52

Ø22.5

110°

172.19

Ø24

Ø20.57

47.43

66.81

From outer
to inner:

up to 2 kHz

90º

Frequency Response

dB

10

0

-10

-20

20 50 100 200

Polar Chart

45º

135º

500

180º

-10

-15

-20

dB

0º

-5
45º

4 kHz

90º

8 kHz
16 kHz

135º

1K 2K 5K 10K 20K

What is “ORTF”?

ORTF is brief from “Office de Radiodiffusion
Télévision Française”. This standard was estab­lished for stereo broadcasting that brings optimal

stereo performance to most audio systems. 2

cardioid capsules arranged with 110°

open angle and 17 cm space away.

The benefits of ORTF brings more spa-

cious sound than coincident XY tech­nique, yet avoid “hole in the center” problem of
spaced AB technique which exhibits very good
spacious sound.

ORTF technique balanced excellent stereo po­sitioning, and spacious sound that please most
of the audience than AB or XY/MS stereo tech­nique. ORTF is a technique that can be easily
handled by beginners or video production crews
with a fix ORTF stereo microphone such as
S502. Experienced engineer can also takes this
advantage with S502, or use a pair of S241 with
stereo bracket for ORTF recording.

Maintainence

Condenser microphone shall be kept in low hu­midity environment for best sound performance.

Store the condenser microphones in air-condi-

tioned room or dehumidifier to keep away form

moisture. Clean air is another important factor.
Keep away from smoking environment to avoid
tar residuals.