Technical Specifications; Specifications; Frequency Response And Impedance Curve - Beta Three MU Series User Manual

MU404
MU Series Pro Loudspeaker System

Specifications

Product:
Transducer:
Frequency Response(-3dB):
Frequency Response(-10dB):
Sensitivity(1W@1m):
Maximum. SPL(1m):
Power:
Dispersion Angle(HxV):
Rated Impedance:
Cabinet:
Installation:
Paint: White durable textured finish
Grill:
Connector:
Dimension(WxDxH):
Packing Dimension(WxDxH):
Net Weight:
Gross Weight:
Optional Accessories:
Frequency response curve & Impedance curve
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Passive Wooden Speaker
4 x 4'' LF , 1x44mmHF
1
160Hz-20kHz
150Hz-20kHz
2
88dB
3
109dB/115dB ( PEAK )
4
120W (RMS)
240W (MUSIC)
480W (PEAK)
° °
150 x 150
8 ohms
15mm plywood construction
Mounting U bracket included and
optional mounting points provided.
White powder coated ,
1.0mm steel mesh.
4-Push terminal
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
Frequency response curve
Impedance curve
100 200 500
Frequency (Hz)

TECHNICAL SPECIFICATIONS

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.
1k 2k 5k
50
30
20
15
9
8
10k 20k