|
General
data
|
|
|
Height
|
895
mm (35 inches)
|
|
Diameter
|
72
mm (2.8 inches)
|
|
Weight
(without floor stand)
|
2070
g
|
|
Operating
temperature range
|
0°C
to +45°C
|
|
Humidity
|
20
% to 85 %
|
|
Transmission
technology
|
2.4
GHz with automatic frequency hopping
|
|
Frequency
planning
|
not
necessary
|
|
Number
of Dynamic SoundField systems per school
|
Unlimited
|
|
Operating
range
|
typically
>10 meters (> 33 feet)
|
|
Audio
characteristics
|
|
|
Audio
bandwidth for speech
|
200
Hz–7.5 kHz
|
|
Signal-to-noise
ratio with EasyBoom
|
>
55 dB
|
|
Audio
bandwidth for auxiliary audio input
|
200
Hz–15 kHz
|
|
Signal-to-noise
ratio of external audio
|
>
70 dB
|
|
Volume
control for voice
|
+/–
8 dB
|
|
Volume
control for auxiliary audio input
|
+/–10
dB
|
|
Power
output
|
up
to 40 W
|
|
Loudspeaker
impedance
|
4
Ω
|
|
Vertical
aperture angle of the main lobe @500Hz
|
+/–25°
|
|
Vertical
aperture angle of the main lobe @2kHz:
|
+/–7°
|
|
Auxiliary
input socket
|
3.5
mm jack
|
|
Auxiliary
input impedance
|
>
10 kΩ
|
|
Dynamic
characteristics
|
|
|
Target
gain for noise level < 54 dB SPL
|
+6
dB compared to the voice level
|
|
Start
of dynamic adaptation
|
noise
level > 54 dB SPL
|
|
SNR
with 45 dB SPL noise level in classroom
|
>
20 dB*
|
|
SNR
with 55 dB SPL noise level in classroom
|
>
12 dB*
|
|
SNR
with 65 dB SPL noise level in classroom
|
>
10 dB*
|
|
Typical
average output level (Volume control 0 dB, speech level of 65
dB
S@1 m)PL
|
Noise
level < 54 dB SPL: 71 dB SPL@1 m, 66 dB SPL in the
reverberant field
Noise
level = 60 dB SPL: 75 dB SPL@1 m, 70 dB SPL in the reverberant
field
Noise
level = 66 dB SPL: 81 dB SPL@1 m, 76 dB SPL in the reverberant
field
Noise
level > 66 dB SPL: 81 dB SPL@1 m, 76 dB SPL in the
reverberant field
|
|
Maximum
average output level with EasyBoom
|
89
dB SPL@1 m (Volume control: +8 dB, noise level of 60 dB SPL,
speech level of 75 dB SPL@1m)
|
|
Maximum
peak output level with EasyBoom
|
96
dB SPL@1 m (Volume control +8 dB, noise level >60 dB SPL,
speech level of 75 dB SPL@1 m)
|
|
Maximum
peak output level over auxiliary audio input
|
100
dB SPL
|
|
Power
supply
|
|
|
Voltage
input
|
100–240
V
|
|
Voltage
output
|
19VDC/65
W
|
|
Power
consumption in standby mode
|
<
1 W
|
|
Power
consumption in Off mode
|
<
0.5 W
|
|
Floor
stand
|
|
|
Height
|
1035
mm (41 inches)
|
|
Diameter
of the foot print
|
750
mm (29 inches)
|
|
Weight
|
2165
g
|
