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

TECHNICAL SPECIFICATION

Specification
System:
Tweeter:
Woofer:
Frequency response(-3dB):
Frequency response(-10dB):
Sensitivity(1W@1m):
Max.SPL(1m):
Power:
Dispersion（H×V）:
Rated impedance:
Crossover point:
Cabinet:
Mounting accessories:
Handle:
Painting:
Connector:
Cabinet dimension:
(W D H)
Package dimension:
(W D H)
N.W.(pc):
G.W.(pc):
Optional mounting accessories: Speaker stand
Frequency response curve & Impedance curve
110
100
90
80
70
60
20 50
Passive full range wooden speaker with painting
1 3" Compression Driver
2×15" Neodymium woofers
1
45Hz-16kHz
40Hz-20kHz
2
98dB
126dB/132dB(PEAK)
4
600W (RMS)
1200W (MUSIC)
2400W (PEAK)
90 40
4 Ohms
1.8kHz
Wedge shape
Fixed supporting base
4 Wooden handles
Cabinet coated by Polyurethane paint; grille
is powder coated
NL4 2
530 530 1075mm
(20.9 20.9 42.3in)
660 660 1195mm
(26.0 26.0 47.0in)
48.0kg(105.6 lb)
56.5kg(124.3 lb)
100
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
1m away from the speaker.
2. Sensitivity
Use full range Pink noise which has been modified using
an EQ
increasing the
impedance and set the
sensitivity 1m away from the speaker.
3. MAX.SPL
Use full range Pink noise which has been modified using
an EQ
i n c r e a s e t h e
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 of100 hours,
the rated power is the power when the speaker will show
no visible or measurable damage.
Frequency response curve
Impedance curve
1000
Frequency (Hz)
MU215
MU Series Pro Loudspeaker System
power at 1W, then test the frequency response
curve to test the speaker in the anechoic chamber,
signal to make the speaker
power output at 1W, then test
curve to test the speaker in the anechoic chamber ,
s i g n a l t o m a k e t h e s p e a k e r
10000
work at its rated
the
w o r k a t i t s
30
20
10
4
20000
7