Akg MB3 Bruksanvisning
Sidor 2 Engels mikrofon
Läs bruksanvisningen för Akg MB3 gratis online eller ladda ner PDF:en. 22 personer har tyckt att guiden var hjälpsam. Fråga om modellen? Ställ en fråga
T
MB3
MINI-BOUNDARY
™
MICROPHONE
he AKG/Crown
®
MB3 is a miniature
boundary microphone for multi-miking
applications such as teleconferencing,
distance learning, boardrooms,
courtrooms, and security applications. This
low-profile, circular mic
permanently installs
into a hole drilled in a
table, lectern, or ceiling.
Thanks to its supercardioid pickup pattern, the
MB3 greatly reduces ambient noise and
pickup of room reverberation. The result is a
clearer, more intelligible sound.
On the bottom of the mic is a tubular power
module with a 3-pin XLR-type output connec-
tor. It is powered by 12-48V phantom power,
and has a low-impedance balanced mic-level
output.
Features
•
Small, inconspicuous.
•
Installs permanently in table top, wall or
ceiling.
•
Clean, clear, natural sound.
•
Low-Z balanced mic-level output prevents
hum and high-frequency loss.
Specifications
Type:
Phase Coherent Cardioid.
Element:
Electret condenser.
Frequency response (typical):
50Hz to 15,000 Hz at
30degrees incidence to surface (see Fig. 1).
Polar pattern:
Half-supercardioid (supercardioid in
the hemisphere above the primary boundary).
See
Figs. 2 and 3.
Impedance:
150 ohms, balanced (recommended
load impedance 1000 ohms or greater).
Fig. 1
+15
+10
+5
dB 0
–5
–10
–15
–20
–25
–30
Frequency Response
0˚
130˚
•
Removable grille assembly can be painted.
How to Paint the Microphone
1.Using a small screwdriver, pry open one side
ofthe base, then the other side (Fig. 5).
Open-circuit sensitivity (typical):
22mV/Pa* (–33
dB re 1 volt/Pa).
Power sensitivity:
–30.5 dB re 1 mW/Pa*.
EIA rating:
–125 dBm.
Equivalent noise level (self-noise):
22dB SPL
–35
201001K
10K
Frequency in Hz
Fig. 2
Horizontal-Plane Polar Response
2.Remove the foam liner.
3.Wearing a dust mask, spray-paint the grille
assembly. Be sure grille holes are not clogged.
4.Allow to completely dry.
5.Make sure the LED isproperly aligned.
6.Carefully place the grille assembly over the
base, and snap inplace.
Installation
Tables:
Ina table, typical placement for each
mic is an arm’s length from the user. Install
one microphone in front of each person, or one
between every two people.
Lecterns:
Ifthe microphone will be used on a
typical (0 dB=0.0002 dyne/cm
2
), A-weighted.
S/N ratio:
72dB at 94 dB SPL.
Maximum SPL:
120 dB SPL at 3%THD.
Polarity:
Positive (inward) pressure on the
diaphragm produces positive voltage on pin 2
with respect to pin 3.
Operating voltage:
Phantom power, 12-48 volts DC
on pins 2 and 3 with respect to pin 1 of output
connector.
Current drain:
4 mA nominal.
Connector:
3-pin pro audio, XLR-M type.
Cable:
None supplied. Use two-conductor shielded
mic cable.
Materials:
High-impact molded plastic and steel
mesh mic grille, steel chassis.
300˚
270˚
240˚
330˚
0˚
30˚
FRONT
–0
–5
–10
–15
–20
REAR
1 kHz
200Hz
5 kHz
60˚
90˚
120˚
lectern, install it on an open surface. Do not
install ina cavity or recessed area as the fre-
quency response and polar pattern will be
degraded.
Finish:
Satin black.
Net weight:
2.7 ounces (78 grams).
Dimensions:
See Fig. 4.
Fig. 3
210˚
180˚150˚
Ceilings:
When mounting mics in the ceiling,
use as few mics as possible, and put them in
front of the people speaking—not directly
overhead.
Note:
The system gain-before-feedback may
not be adequate in ceiling mount applications
because the mic is far from its user.
Optional accessories:
PH1A phantom power
supply (1 channel, battery or DC-adapter
powered). PH4A phantom power supply (4
channels, AC powered).
*1 pascal = 10 dynes/cm
2
= 10 microbars = 94 dB SPL.
30˚
0˚
Vertical-Plane Polar Response
60˚90˚120˚
1 kHz
200Hz
5 kHz
FRONT REAR
+5 –0 –5 –10 –15 –20
150˚
180˚
Produktspecifikationer
| Varumärke: | Akg |
| Kategori: | mikrofon |
| Modell: | MB3 |
Behöver du hjälp?
Om du behöver hjälp med Akg MB3 ställ en fråga nedan och andra användare kommer att svara dig
mikrofon Akg Manualer
Akg Perception 120 Bruksanvisning Akg PZM11 Bruksanvisning Akg PCC170 Bruksanvisning Akg C414 XLS Bruksanvisning Akg P120 Bruksanvisning Akg CK33 Bruksanvisning Akg C1000S Mk4 Bruksanvisning Akg CK32 Bruksanvisning
Populära i mikrofon
mikrofon Manualer
Nyaste mikrofon Manualer
Lectrosonics VRT2 Bruksanvisning Lectrosonics SMDWB/E07-941 Bruksanvisning Lectrosonics LRBATELIM Bruksanvisning Airwave Technologies AT-5220 Bruksanvisning Toa IR-842PMU-AM Bruksanvisning Toa YP-M301 Bruksanvisning Toa PM-660D Bruksanvisning Airwave Technologies AT-5250 Bruksanvisning Toa YP-M101 Bruksanvisning Toa YP-M5000E Bruksanvisning