Marshall Electronics Genesis Manual de usuario

Professional Audio Division

Phone: 310-333-0606 ·800-800-6608 ·Fax: 310-333-0688

www.mxlmics.com ·[email protected]

Tube Microphone

Heritage Edition

Thank you for choosing the state of the art

Heritage Edition Genesis HE microphone from MXL®.

Your new Genesis HE microphone was designed and

engineered in the USA by our world class team of

electrical and audio engineers, and is built for the

most critical sound applications. As the ﬂagship of

the MXL®product family, the Genesis HE exhibits a

warmth and intimacy previously only found in

microphones costing many times more.

The MXL®Genesis HE features individually

selected components, chosen for their superior

sonic capabilities. One of the key components

is the Mullard 12AT7 tube, which is universally

accepted as one of the most musical tubes

available. Your Genesis HE will provide many years of

outstanding service, and will always ensure you get the

ﬁnest quality recordings attainable.

To assist you in obtaining the best possible results

from your MXL®Genesis HE microphone, we have

provided some tips, tricks and answers to

commonly asked questions.

We encourage you to review these materials.

110

Genesis HE Specs

Type: Vacuum Tube Studio Condenser

Microphone

Tube Type: Mullard 12AT7 or equivalent

Diaphragm: 6 micron gold-sputtered

Frequency Response: 20 Hz – 20 kHz

Polar pattern: Cardioid

Output Impedance: 200 ohms

Pre-Attenuation Switch: 0 dB, -10 dB

High Pass Filter: 6 dB/octave @ 150 Hz

Equivalent noise: 18db (A-weighted IEC 268-4)

S/N Ratio: 78dB (Ref. 1Pa A-weighted)

Max SPL for .5% THD: 130 dB/140 dB (0dB, -10 dB pad)

Power Requirements: Dedicated power supply

Size: 59mm x 240mm

Weight: 1.55 lbs.

Metal Finish: Silver Frost with Chrome Grill

Warranty

MXL microphones are guaranteed against defects in material and

workmanship for one year (except tube which is 90 days) from date of

purchase. Should you encounter any problem with this unit, promptly contact

the company you purchased it from for assistance. The original dated sales

receipt will be necessary for any warranty claim. Do not send any unit

directly to us without prior authorization from our service department!

Warranty coverage is limited to repair or replacement (at our option) of the

microphone, and does not cover incidental damages due to use of this unit,

nor damage caused by accidental misuse of this product.

Recording a Drum Set

Like the piano, capturing the drums can be quite a challenge, if for no other

reason than the fact that you must be very careful to avoid positioning the

microphone(s) where they could be hit! Ideally you’ll want a minimum of two

microphones for this job, though a single microphone can be employed.

Stereo Overhead Pair: Position the two microphones approximately 16 - 20

inches above the performer’s head - separated laterally by roughly 2 - 3 feet

and placed 5 – 6 feet out in front of the drum kit. Adjust the two microphone’s

Pan position so that you achieve a good stereo spread, though generally not

hard left and right. (see Fig. 5A)

Single Overhead Microphone: Position the microphone approximately 16

- 20 inches above the performer’s head - centered in front of the drum set,

and placed 5 - 6 feet out in front. The microphone’s Pan position should be

centered for mono drums. (see Fig. 5B)

For best results, record the drums in as acoustically “dead” a room as you

can. If the room is live, the sharp attack transients of the drum kit will only

become that much more difﬁcult to capture if the room has hard, reﬂective

surfaces - resulting in a muddy sound without any real deﬁnition. Further, you

should always record the drums dry and add signal processing after the fact.

Fig. 5A

2-3 Ft. apart

16-20” above performers head

Front View

Fig. 5B

16-20” above performers

head

Front View

Switches

The Genesis HE features switches

for both bass roll-off and a -10dB

pad. The bass roll-off is set to 6dB

per octave at 150 Hz. This can

reduce proximity effect if required.

Proximity effect is the change of

frequency response as the recorded

source is brought closer to the

microphone. With vocals, this usually

manifests itself as an increase in

low frequency content as one gets

closer to the microphone. The

-10dB pad effectively reduces

possible overloading of the

microphones internal circuitry at

high SPLs.

Power Requirements

IMPORTANT -This unit requires

the use of the dedicated power

supply included in the package. This

supply is switchable between 115

volts and 230 volts AC. In North

America the microphone ships

in the 115 volts AC position and

in the 230 Volts AC position for

export. However, you always want to

ensure that the power supply

voltage is correctly set for your local

voltage as permanent damage to the

microphone and/or power supply may

occur if the incorrect voltage setting

is selected. Every MXL®microphone

has been thoroughly checked before

shipping; so if you hear no sound,

check that the power supply is

switched on.

Caution

Do not “hot plug” the mic. Always

ensure that the power supply is off

when plugging and unplugging the

included seven-pin cable from the

microphone to avoid damaging the

microphone and power supply.

Care

Dust and foreign material can

degrade the performance of a

microphone over time so always

store the unit in its case. It is

highly recommended to use the

specially designed Genesis HE pop

ﬁlter when recording vocals.

Features

Accessories

Continued on page 3

Pop Filter

The Genesis HE comes with a

custom pop ﬁlter which should

be used anytime the microphone

is being used to record vocals.

The pop ﬁlter not only eliminates

plosives (those “popping Ps”),

it helps collect

condensation from one’s breath

and protects and protects the

microphone’scapsulefrommoisture

in the process. Condensation on

the microphone’s capsule will cause

the microphone to short circuit -

resulting in the microphone cutting

in and out of operation. Should this

occur, you can leave the microphone

uncovered, out in the open

for approximately two weeks to

thoroughly dry. This will likely

rectify the problem. Afterward, you

should always use a pop ﬁlter.

Shockmount

The Genesis HE comes with a

custom shockmount speciﬁcally

designed to handle its large

size. Shockmounts de-couple the

microphone from the mic stand and

the environment. The shock-mount

will minimize ﬂoornoise as well

as any noise induced by people

handling the microphone stand.

Shockmounts should be considered

“standard equipment” for all

recording applications.

Microphone Cables

The microphone cable can have a

profound effect on the sound of

any microphone. Even the ﬁnest

microphones will sound poor if the

interconnect cable allows noise to

enter, or causes distortion and

loss of information. We highly

recommend exclusively using the

Mogami®cables supplied with

your Genesis HE Mic.

Continued from page 2

Accessories

The front of the microphone is always indicated by the position of the

cardioid pattern symbol.

Front Panel Placement: For the upper strings, position the microphone

approximately 8 - 11 inches away from the strings, with the Pan position set

to left of center. For the lower strings, position the microphone 8 - 11 inches

away from the strings, with the Pan position set to right of center. (see Fig. 4B)

Single Microphone / Open Top: If you are using a single microphone, it is

generally recommended that you record from above, as placement of the

microphone in the lower center may interfere with the performer’s ability to

access the pedals and the microphone will likely pick up excessive pedal

and other mechanical noise. Position the microphone just over the open top,

centered over the instrument. (see Fig. 4C)

Fig. 4B

2 1

Front Panel Removed

Front View

Mics positioned

8-11” away from strings

Side View

Fig. 4C

Side ViewFront View

Recording the Piano

The piano is one of the most challenging instruments to record, and many

problems stem from the quality and maintenance of the instrument itself.

You’ll obtain the best results by using an instrument that has just been tuned

and is in good mechanical condition.

The piano is generally recorded using close miking technique. Ideally, you’ll want

a minimum of two microphones. Usually, the microphone capturing the higher

stringsisassignedtotheleftchannelandthemicrophonecapturingthelowerstrings

is assigned to the right channel in the ﬁnal stereo mix, though the stereo spread

generally is not hard left and right. While a single microphone can be used,

the lower and upper extremities of the instrument will likely be compromised.

Grand Piano: For the upper strings, position the microphone approximately 8

inches from the piano hammers (to reduce mechanical noise) and 8 - 11 inches

above the strings, with the Pan position set to left of center. For the lower strings,

position the microphone toward the far end (away from the keyboard) roughly

6 - 12 inches from the end and 8 - 11 inches above the strings, with the Pan

position set to right of center. Position the piano’s lid at full stick. (see Fig. 4A)

If you are using a single microphone, position the microphone approximately

8 inches from the piano hammers (to reduce mechanical noise) and 8 - 11

inches above the strings - centered over the piano’s mid point. Pan position

should be centered and the piano’s lid should be at full stick.

Upright Piano: With an upright piano, the two microphones are generally

placed either just over the top of the piano with the top open, or you

can remove the piano’s front panel beneath the keyboard and place the

microphones below.

Fig. 4A

Top View

or a single mic here

Front View

or a single mic here

Recording Vocals and Dialog

Ideally, you want to record vocals in a relatively “dead” room. If you clap your

hands and get an echo effect, you should consider adding some carpet,

blankets, drapes, or other sound absorbing materials. On that note, make

every effort to avoid getting too close to the room’s walls. These hard,

reﬂective surfaces can easily complicate the recording process. Move your

mic setup toward the room’s center.

Generally, you should position the vocalist roughly 6 - 8 inches away from

the microphone. Getting too close to the microphone tends to increase bass

response and can create problems with plosive sounds - those

popping Ps, Bs, Ds, and Ts (more on this in a moment). Getting too far

away makes the microphone more subject to picking up room ambience -

a sound that creates the effect of the vocalist being in a bowl. While

vocalists may need to move about in order to hit those high notes, make

every effort to maintain a constant distance from the microphone, as this

will provide the greatest tonal balance. (see Fig. 1) For the most part, the

microphone’s axis (or center line) should aim toward the nose and mouth

to obtain the fullest sound. It’s not a bad idea, however, to experiment

angling the microphone slightly away from dead center so as to help minimize

plosives. Further, you should always place a “pop” ﬁlter between the vocalist

and the microphone, with the pop ﬁlter positioned 3 - 4 inches in front of the

microphone. This will greatly increase your ability to achieve the most natural

sounding recordings with minimal interference from plosive sounds. Fixing

plosives with audio editing software often creates more of a problem than the

plosive itself. Use of a pop ﬁlter will also protect your microphone’s sensitive

capsule - keeping it free from moisture caused by saliva projecting from the

performer’s mouth, and breath condensation. Remember… Good

microphone technique, proper positioning, and use of a pop ﬁlter can make

all the difference between a so-so vocal recording and a great one.

Fig. 1

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