Sennheiser MKH 800 Manual de usuario

MKH 800 TWIN

Bedienungsanleitung

Instructions for use

Notice d’emploi

Istruzioni per l’uso

Instrucciones de uso

Gebruiksaanwijzing

Book_524137_1007_Sp6.book Seite 0 Freitag, 9. November 2007 2:22 14

Contents

Important safety information ................................................ 2

MKH 800 TWIN ........................................................................... 3

Delivery includes ....................................................................... 4

Putting the microphone into operation ................................ 5

Connecting the microphone .............................................. 5

Aligning the microphone ................................................... 5

Function monitoring ........................................................... 5

Mounting the microphone to a stand ............................. 5

Attaching the windshield .................................................. 6

Remote adjustment of the pick-up patterns ................. 6

Surround applications ........................................................ 8

Care and maintenance .............................................................. 9

Accessories and spare parts .................................................... 9

Specifications .......................................................................... 10

Polar diagram and frequency response curve ............ 11

Manufacturer Declarations ................................................... 12

Thank you for choosing Sennheiser!

We have designed this product to give you reliable

operation over many years. Over 60 years of accumulated

expertise in the design and manufacture of high-quality

electro-acoustic equipment have made Sennheiser a world-

leading company in this field.

Please take a few moments to read these instructions

carefully, as we want you to enjoy your new Sennheiser

products quickly and to the fullest.

Book_524137_1007_Sp6.book Seite 1 Freitag, 9. November 2007 2:22 14

Important safety information

Notes on these instructions for use

yPlease read these instructions carefully and completely

before using the microphone.

yMake these instructions easily accessible to all users at

all times.

yAlways include these instructions when passing the

microphone on to third parties.

During operation

yWater entering the housing of the microphone can cause

a short-circuit and damage the electronics. Protect the

microphone from liquids. Use only a slightly damp cloth

to clean the microphone.

yDo not expose the microphone to extreme temperatures

(normal operating temperatures: 10 °C to 35 °C).

After operation

yUse the microphone with care and store it in a clean,

dust-free environment.

Intended use of the microphone

Intended use includes:

yhaving read these instructions, especially the chapter

“Important safety information”,

yusing the microphone within the operating conditions

and limitations described in this instruction manual.

yNever open the microphone. If devices are opened by

customers in breach of this instruction, the warranty

becomes null and void.

“Improper use” means using the microphone other than as

described in these instructions, or under operating

conditions which differ from those described herein.

Book_524137_1007_Sp6.book Seite 2 Freitag, 9. November 2007 2:22 14

MKH 800 TWIN

The MKH 800 TWIN is a universal studio condenser

microphone of exceptional quality. It includes a dual

capsule consisting of two symmetrical push-pull trans-

ducers with high linearity. This is a “side fire” microphone

with the two cardioid pick-up patterns of the transducer

aligned back-to-back across the axis of the microphone.

The MKH 800 TWIN is based on the MKH 800. However, the

signals of both transducers are not combined in the

microphone in order to generate differing pick-up patterns

but are available separately as two channels at the

microphone output. This allows the pick-up patterns of the

MKH 800 TWIN to be remotely adjusted. The signals can be

combined in any desired way in the mixing console in order

to create all pick-up patterns from omni-directional to

figure-8 with an infinite number of intermediate stages.

yThe remote adjustability and the variable pick-up

patterns make the MKH 800 TWIN a universal main

microphone, soloist microphone or supporting micro-

phone.

yThe pick-up patterns can be set and optimised under

monitoring conditions. In other words, it is not necessary

to fix the pick-up patterns definitively before recording.

yA wide range of mixes for stereo and surround are

possible (including in parallel).

yThe saving of the microphone signals in two channels

also allows an unlimited range of mixes to be realised at

a later date.

yThe high sensitivity ensures interference-free signal

paths as a result of high signal levels. The inherent noise

of downstream microphone amplifiers is thus of minor

importance.

yThe very low inherent noise prevents the masking of

filigree sound structures. The depth of the acoustic can

be heard more clearly too.

yThe high linearity of the transducers minimises the

signal distortions and ensures the transparency of the

sound even at high sound levels.

yThe frequency response extends to 50 kHz, thus

improving the resolution for complex acoustic details.

yStable pick-up patterns minimise sound distortion in the

direct and diffuse field.

yNegative acoustic effects caused by the housing and the

sound inlet basket are minimised.

yThe small, slim design and the optionally dark housing

design (Nextel) make it visually unobtrusive.

Book_524137_1007_Sp6.book Seite 3 Freitag, 9. November 2007 2:22 14

Delivery includes

y1 MKH 800 TWIN studio condenser microphone

y1MZS80shockmount

y1 AC 20 adaptor cable

(1 x XLR-5 socket to 2 x XLR-3 connector)

y1 MZQ 80 microphone clamp

y1 Aluminium transport case

y2 supplementary sheets with the front and rear

frequency response curves

yInstructions for use:

–MKH800TWIN

–MZS80shockmount

Sound inlet basket

LED Front (blue)

LED Rear (red)

XLR-5 connector of the microphone

AC 20 adaptor cable



쐋





Book_524137_1007_Sp6.book Seite 4 Freitag, 9. November 2007 2:22 14

Putting the microphone into

operation

Connecting the microphone

The MKH 800 TWIN has been designed for a 48 ± 4 V

phantom powering according to IEC 61938.

To power the microphone:

왘Connect the XLR-5 socket of the adaptor cable to the

XLR-5 connector of the microphone.

왘Connect the two XLR-3 connectors of the adaptor cable

to the corresponding sockets of your mixing console.

왘Switch on the phantom powering on your mixing

console.

The LEDs and on the microphone light up.

Aligning the microphone

The front of the microphone is marked by the word “Front”

and a blue LED  whereas the rear is marked by a red

LED .

The LEDs can be used for aligning the microphone. On-axis

alignment is indicated by maximum brightness.

Function monitoring

The two LEDs Front and Rear  indicate operational

readiness separately for both channels. The LEDs go off if

the supply voltage drops below 42 V.

Mounting the microphone to a stand

The supplied MZS 80 shock mount allows the MKH 800

TWIN to be mounted to a stand and effectively protects

against structure-borne noise.

To mount the microphone to a stand:

왘Select the suitable mounting thread:

– Without thread insert: 5/8" thread

– With thread insert: 3/8" thread

왘Screw the shock mount to a stand.

왘Pass the cable through the cable grip

as shown.

왘Place the microphone into the shock

mount as shown.



Book_524137_1007_Sp6.book Seite 5 Freitag, 9. November 2007 2:22 14

Attaching the windshield

Pop noises resulting from close miking can be suppressed

effectively using the optional MZW 80-ANT windshield or

the optional MZP 40 popperstopper (see “Accessories and

spare parts” on page 9).

To attach the windshield:

왘Slide on the windshield onto the sound inlet basket .

To attach the popperstopper:

왘Attach the gooseneck of the popperstopper to the stand.

The popperstopper changes the sound only slightly.

Remote adjustment of the pick-up patterns

The two signals of the MKH 800 TWIN allow the remote

adjustment of the pick-up patterns at the mixing console.

The two microphone signals (front and rear) are routed to

separate channels and summed together. The sum signal is

then distributed over the stereo channels as usual using the

pan control.

왘The pan control of both channels has to be aligned

identically for correct operation.

Pick-up pattern Setting

Omni-directional 왘Set the amplification to the same

value in both channels.

Wide cardioid* 왘Set the amplification in the rear

channel lower than in the front

channel.

Cardioid 왘Activate the front channel only.

Book_524137_1007_Sp6.book Seite 6 Freitag, 9. November 2007 2:22 14

*Wide cardioid:

Pattern between omni-directional and cardioid

The wide cardioid pattern of the MKH 800 is, for example,

the result if the rear channel has 10 dB less amplification

than the front channel. The pick-up pattern becomes more

omni-directional at higher amplification and more cardioid

at lower amplification.

At the same time, the rear attenuation (180° attenuation)

of the microphone changes. It is the direct result of the

amplification ratio between the front and the rear channel,

i.e. 10 dB in the example of the wide cardioid pattern.

**Super-cardioid:

Pattern between cardioid and figure-8

The super-cardioid pattern of the MKH 800 is, for example,

the result if the amplification of the rear channel is 10 dB

lower than that of the front channel and if the phase of

the rear channel is inverted. At higher amplification, the

pick-up pattern tends towards the figure-8 pattern,

otherwise the pattern becomes more cardioid.

The cancellation angle at which the microphone is

especially insensitive also changes. It is 180° in the case of

the cardioid pattern, 120° for the super-cardioid pattern

and 90° for the figure-8 pattern. If the MKH 800 TWIN is

used as a supporting microphone, the attenuation

between different groups of instruments in an orchestra

can for example be optimised in this way. Here, too, the

rear attenuation is the result of the amplification ratio

between the front and the rear channel, i.e. 10 dB in the

case of the super-cardioid pattern.

Figure-8 왘Set the amplification to the same

value in both channels.

왘Invert the phase of the rear

channel.

Super-cardioid** 왘Set the amplification in the rear

channel lower than in the front

channel.

왘Invert the phase of the rear

channel.

Pick-up pattern Setting

Phase

Book_524137_1007_Sp6.book Seite 7 Freitag, 9. November 2007 2:22 14

Changing the pick-up pattern

There are two different ways of changing the pick-up

pattern of the microphone.

If the microphone level has to be changed infrequently:

왘At the mixing console, set the preamplification to the

same value in both channels.

왘Vary the pick-up pattern by using the level control and

the phase switch of the rear channel.

The level control of the front channel stays in the same

position.

If the microphone level has to be changed frequently:

왘At the mixing console, set the level controls to the same

value and couple them mechanically or electrically.

왘Change the pick-up pattern by using the pre-set gain

control and the phase switch of the rear channel.

Surround applications

As a result of the symmetry of the microphone, it is also

possible to create any desired rear pick-up pattern. For this

purpose the microphone signals are additionally routed to

two other channels, whereby front and rear channel

exchange roles. The settings are then made in the same

way as described above and the rear pick-up patterns can

be freely selected. Both pick-up patterns are then available

simultaneously, for example for a surround front channel

and a surround rear channel. With two MKH 800 TWIN, four

surround channels can be created in this way.

If only the cardioid pick-up pattern is required for the front

and rear channels, the microphone signals can also be used

directly. This minimises the necessary effort.

With an MKH 800 TWIN and a figure-8 microphone (e.g.

MKH 30) full surround-sound recording using the double

MS technique (MSM) can be done. As is common with the

MS technique, the figure-8 microphone is positioned above

the MKH 800 TWIN and directed to the left. The front and

rear left and right surround channels are produced by

matrixing the figure-8 signal and the front and rear signals

of the MKH 800 TWIN.

By combining the front and rear signals of the

MKH 800 TWIN, a centre channel with any pick-up pattern

can be achieved and even a centre rear channel is possible

if required. In spite of the wide range of options, post-

production still only requires the original microphone

signals to be saved, i.e. only three signals for five or six

surround channels.

Book_524137_1007_Sp6.book Seite 8 Freitag, 9. November 2007 2:22 14

Care and maintenance

왘Use a soft, slightly damp cloth to clean the microphone

from time to time.

Accessories and spare parts

CAUTION! Liquids can damage the microphone!

Liquids entering the microphone can cause

a short-circuit in the electronics and

damage the microphone capsule.

왘Do not use any solvents or cleansing

agents.

Cat. No. Accessory/Spare part

003132 MZP 40 popperstopper

003780 MZW 80-ANT foam windshield

003685 MZS 80 shock mount

050174 MZQ 80 microphone clamp

006595 AC 20 adaptor cable

Book_524137_1007_Sp6.book Seite 9 Freitag, 9. November 2007 2:22 14

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