Beta Three MU Series Pro, User Manual

Page: 7 / 10

6
S
ensitivity
(
dB
)
20
60
70
80
90
100
110
50
20
9
8
Frequency ( Hz )
Impedanc
e
(
Ohms
)
50 100 200 500 2k 5k 10k 20k 1k
文件 （图）名
版本 第7页 共10页
英文说明书
产品名称
客户/品牌/型号
文件 （图） 号
专业音箱
ELDER/β3/MU404
30
15
MU404
MU Series Pro Loudspeaker System
TECHNICAL SPECIFICATIONS
Specifications
160Hz-20kHz
88dB
8 ohms
° °
150 x 150
109dB/115dB ( ) PEAK
150Hz-20kHz
Passive Wooden Speaker
4 x 4'' LF , 1x44mmHF
4
15mm plywood construction
White powder coated ,
1.0mm steel mesh.
4-Push terminal
Packing Dimension(WxDxH):
Sensitivity(1W@1m):
Frequency Response(-3dB):
Dispersion Angle(HxV):
Dimension(WxDxH):
Maximum. SPL(1m):
Frequency Response(-10dB):
1
2
3
Product:
Transducer:
Power:
Rated Impedance:
Cabinet:
Installation:
Grill:
Connector:
Net Weight:
Gross Weight:
Optional Accessories:
Speaker Testing Method
1. Frequency Response
Use Pink noise to test the speaker in the anechoic chamber, adjust the
level to make the speaker work at its rated impedance and set the output
power at 1W, then test the frequency response 1m away from the
speaker.
2. Sensitivity
Use full range Pink noise which has been modified using an EQ
curve to test the speaker in the anechoic chamber, increasing the
signal to make the speaker work at its rated impedance and set the
power output at 1W, then test the sensitivity 1m away from the
speaker.
3. MAX.SPL
Use full range Pink noise which has been modified using an EQ
curve to test the speaker in the anechoic chamber , increase the
signal to make the speaker work at its maximum power output
level, then test the SPL1m away from the speaker.
4. Rated Power
Use Pink noise to the IEC#268-5 standard to test the speaker,
increase the signal for a continuous period of 100 hours, the
rated power is the power when the speaker will show no visible
or measurable damage.
120W (RMS)
240W (MUSIC)
480W (PEAK)
Mounting U bracket included and
optional mounting points provided.
Paint:
White durable textured finish
Frequency response curve
Impedance curve
Frequency response curve & Impedance curve
144 × 166 × 692mm
(5.7 × 6.5 × 27.3in)
235 × 215 × 772mm
(9.3 × 8.5 × 30.4in)
10.0kg(22.0 lbs)
11.0kg(24.2 lbs)
Wall bracket,U-Bracket,L-Bracket