Bogen MHH User Manual

COMMUNICATIONS, INC.

CARDIOID DYNAMIC MICROPHONE

DESCRIPTION AND APPLICATIONS

The Model MHH is a high-output dynamic cardioid
microphone designed for lecturers, entertainers, and
vocalists who truly need dependable performance and high
output in a handsome, but very durable hand-held package.

The MHH has a shaped frequency response which provides a
natural, transparent sound quality, as well as a warm bass­boost (proximity effect) when working up close. An excellent
cardioid directional pattern, factory tuned for precise
ocouetical repoatability,
from the back and sides, as well as diminishing annoying
feedback when used in close proximity to sound
reinforcement speakers and monitors.

The microphone'g grille screen is constructed of Flcx-Form^^,

a special alloy that dramatically resists deformation, while
eliminating risk of adverse performance caused by a bent
grille. This unique feature of retaining its original shape
assures that the MHH will maintain its attractive
appearance through many years of use.

The low-frequency response of the MHH may be enhanced
by increasing or decreasing the distance from the sound
source. This phenomenon is technically known as “proximity
effect”. Nominal or “flat” response is generated at a distance
of 24 inches or more. However, as the distance to the sound
source decreases, the bass sensitivity increases, providing a
solid, robust character.

The microphone is supplied complete with a snap-in
microphone swivel-mount, a locking on/off switch, and an
effective internal multi-stage pop filter to minimize wind and
breath noise. An internal shock-mounting system reduces
stand, cable and handling noise.

reduces pick-up

of unwanted

sources

MODEL

I ®

MHH

SPECIFICATIONS

Generating Element;

Moving Coil Dynamic

Frequency Response:

50-16,000 Hz

I See Figure 1)

Polar Pattern:

Unidirectional (Cardioid)
(See Figure 2)

Impedance:

Low (150 ohms nominal)

Output Level:

Power Level;

— 54 dB (0 dB = 1 mw per 10 microbars)

Open Circuit Voltage;

— 74 dB (0 dB = 1 volt per microbar)

2 mv/ Pascal

Phasing:

Positive Pressure on Diaphragm
generates a positive voltage on

pin 2 relative to pin 3

Switch;

Low profile, lockable

Grille Screen:

Woven Flex-Forin“ steel

Case:

Die Cast Zinc Alloy

Finish:

Durable textured urethane Ash gray

Dimensiuns;

(See Figure 3)

Net Weight:

269 grams (9.5 oz)

Included Accessory:

Snap-in clamp

SPECIFICATIONS

FREQUENCY IN HERTZ

FIGURE 1; FREQUENCY RESPONSE

MODEL MHH MICROPHONE

MAINTENANCE DIRECTIONS

The MHH is a high quality audio instrument. Although it is
BA-tremely durable, It should be protected irom dust and dirt
when not in use.

If the front screen becomes soiled by dirt or residue, it may
be cleaned using the following procedure. Unscrew the front

screen assembly and

Wash the foam windscreen using a mild detergent, and let
dry thoroughly. Follow the same method for the grille
screen. To clean the mic housing, use a cloth dampened with

isopropyl plcohcil.

ARCHITECTS’ AND ENGINEERS’
SPECIFICATIONS

The microphone shall be a dynamic cardioid type, low
impedance with wide-range frequency response, uniform
from 50 to 16,000 Hz and having a lockable on/off switch.

Output level at 1000

microbars). The polar response shall show a minimum of

— 20 dB at 180 degrees between 150 and 5KHz, The woven

steel screen, when attached to the microphone, shall

withstand a drop of 6 feet to a wooden

deformation. The microphone shall have a length of 7-1/16"

— 1/32" and a maximum diameter of 2-7/64" ± 1/64". The

microphone shall be finished in a urethane non-reflecting
gray. A snap-in clamp shall be supplied.

remove the inside foam windscreen.

HZ ahall

be —54 dB 10 dB = 1 mw/10

floor without

any

FIGURE 2: POLAR RESPONSE

FIGURE 4: WIRING DIAGRAM

4ft

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2

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'tft

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The MHH microphone is guaranteed a-

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gainst defects in material and workmanship
for two years from the date of sale to the
original purchaser, provided that the equip

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ment has not been subjected to abuse or
accident or altered in any way. Any part of
the equipment covered by this warranty

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which, with normal installation and use,

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becomes defective will be repaired or leplac-

ed by Bogen, provided the equipment is

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delivered or shipped prepaid and insured to
our authorized service station or to the

Bogen Factory Service Department, 50

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Spring St., Ramsey, New Jersey 07446. The

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equipment will be returned to you freight
prepaid.

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YEAR

LIMITED

WARRANTY

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COMMUNICATIONS. INC.

50 Spring Street, P.O. Box 575, Ramsey, NJ 07446 [phone] FAX: [phone] -SI'S«‘I'I-61