DPA Microphone CXY4000, CXO4000 User's Manual

CXY4000 COMPACT XY STEREO HOLDER

CXO4000 COMPACT XY/ORTF STEREO HOLDER

DPA Microphones A/S

Gydevang 42-44

DK-3450 Alleroed, Denmark

Tel: [phone]

Fax: [phone]

[e-mail]

www.dpamicrophones.com

DPI4000-2

How to mount the microphones

Place the microphone in t he

hook as shown on the picture.

The hook should catch t he

microphone around the type ring.

Now place the rubber ring around

the microphone and attach it to

the little lock on the opposite side.

Please note that the hook has

two different l ocks. In daily use,

when mounting the microphones,

the rubber ring should only be

disassembled from the most open

lock, as shown on the right side of

the photo.

Tip

It is possible to use the CXO4000

in both XY and ORTF at the same

time (with 4 microphones) to

compare the setups or to record

both stereo systems and make

the choice of which one to use

after wards. It is even possible to

mount one pair facing backwards

in order to make a compact

surround sound microphone setup.

Further accessories

EXY4000 Extension for Compact

Stereo Holders

UA0897 Shock Mount

RSM4000 Shock Mount for

windjammer

The CXY4000 and CXO4000 microphone holders are made for

stereo mounting of DPA Compact Cardioid Microphones Type 4021,

4022 and 4023. The holder s are made of black anodized aluminum

and ethyl propylene rubber rings to ensure durability and st ability.

For flexibility, the holders also include a thread adapter for attach-

ment to most common microphone stands.

CXY4000

CXY4000 features mounting

of two DPA Compact Cardioid

microphones in a coincident

intensity difference XY stereo

configuration.

CXO4000

CXO4000 features mounting

of two DPA Compact Cardioid

microphones in both a coincident

XY stereo configuration as well

as in a near coincident ORTF

combined time and intensity

difference stereo configuration.

Choose the two hook s in

the middle for XY stereo and

the two hooks on the side for

ORTF stereo.

The two main principles in our perception of stereo are differences

between left and right channels in time arrival and/or in intensity.

In XY stereo, two identical microphones are placed in approximately

the same point – they are coincident. No time dif ference is present

between them. The stereo perception is based upon level dif fer-

ences, therefore this setup uses directional microphones, as they

offer attenuation to the sides. They give a level difference when

mounted with an angle between them. Several angles are seen but

most commonly used is 90°, which also is t he case with the

CXY4000 and CXO4000 in XY configuration. Other angles will result

in a change in the recording angle and the perceived stereo width.

The XY setup is very convenient because it is compact and has a

great advantage in being completely mono compatible since no

comb filtering will appear when left and right are summed to mono.

ORTF stereo (Of fice de Radiodif fusion Television Française –

French Broadcasting Organization). A combination of level and time

difference is used to obtain the stereo perception. Two identical

microphones are placed in an interaural distance of 17cm (approxi-

mately 7”) and an angle of 110° between the capsules. This dis-

tance is chosen because of its relation to the human head

- the avergae distance between the ears – and provides a stable

image, even when moving the head.

The ORTF setup has a more precise localization, a wider stereo

spread and more of t he pleasant spaciousness and dept h that

spaced microphones provide around the recording. In listening

tests, the ORTF tends to be preferred over many other systems

using cardioid microphones because it features a better compro-

mise between localization accuracy, low angle distor tion, sound

image sharpness and the more subjective warmth in t he ambience.

In order to receive an aut hentic reproduction of the tot al sound

field (direct and ambient sound elements) it is extremely important

to use microphones that have a linear and clean of f-axis response.

Likewise it is a critical factor, that the microphone manufacturer is

able to deliver two microphones t hat are identical within a narrow

tolerance. DPA Microphones fulfills these demands.

Typical applications:

XY

• When you need to be mono compatible

• When you want to boom in stereo.

• Various stereo applications for broadcast use

• When heavy windscreens are needed in a simple setup

• When the microphone setup needs to be out of sight

ORTF

• Close miking pianos

• Overheads for drum kits

• Hor n or string sections

• Choir s

• Main pair or additional spot pair for small or big acoustic

ensembles

• Ambient surround recordings

Read more on www.dpamicrophones.com

TECHNICAL DESCRIPTION A FEW WORDS ABOUT STEREO, LOCALIZATION AND

RECORDING METHODS.