MID-BASS
MB15H401
Professional Low Frequency Transducer
PART NUMBER
The MB15H401 is a 15-inch midbass with linear frequency response characteristics and
very high efficiency. The MB15H401 uses a fibre loaded exponential cone assembly along
with a high excursion triple roll, constant geometry surround. The fibreglass former,
inside/outside aluminum voice coil provides a very good power handling maintaining
light moving mass and proper Q for bass alignment. Demodulation ring for fastest time
response and lowest distortion.
11100015
4-inch, fibreglass inside-outside aluminum voice coil
APPLICATIONS
1400 Watt continuous program power handling
The MB15H401 is ideal for use in applications where is required good power handling,
very high efficiency and perfect linearity. Is the ideal 15” woofer for mid-bass
application in high power, compact 2 way systems. Thanks to his linearity, very easy to
crossover compared to competitors 4” voice coil 15”. The robust mechanical design and
optimised weight of the device make it desirable for use in fixed installation or portable
professional loudspeaker systems.
100 dB Sensitivity
40 Hz - 2 kHz Frequency range
Dual spider design with silicon based dampening control
Triple-roll surround and corrugated exponential cone geometry
Aluminum demodulation ring
40
20
74
2000
100
1.000
10.000
20.000
GENERAL SPECIFICATIONS
393 mm
mm
øø 393
16 mm
Nominal Diameter
Rated Impedance
Program Power 1
Power handling capacity 2
Sensitivity 3
Frequency Range
Effective Piston Diameter
Max Excursion Before Damage (peak to peak)
Minimum Impedance
Voice Coil Diameter
Voice Coil Material
Voice Coil Winding Depth
Number of layers
Kind of layer
Top Plate Thickness
Cone Material
Cone Design
Surround Material
Surround Design
380/15
8
1400
700
100
40 - 2000
340/13.4
50/2.0
7.0
100/4
aluminum
21/0.8
2
inside/outside
12/0.5
No pressed pulp
Curved
Polycotton
Triple roll
mm/inch
ohm
Watts
Watts
dB
Hz
mm/inch
mm/inch
ohm
mm/inch
mm/inch
mm/inch
148mm
mm
148
THIELE - SMALL PARAMETERS 4
Resonance frequency
DC resistance
Mechanical factor
Electrical factor
Total factor
BL Factor
Effective Moving Mass
Equivalent Cas air load
Effettive piston area
Max. linear excursion (mathematical) 5
Voice - coil inductance @ 1KHz
Half-space efficiency
220 mm
mm
øø 220
351 mm
mm
øø 351
SPL,
SPL,1w/1m
1w/1m(dB)
(dB)
110
110
100
100
90
90
80
80
20
20
100
100
1.000
1.000
Frequency (Hz)
(Hz)
Frequency
10.000
10.000
20.000
20.000
Frequency response curve of the loudspeaker taken in a hemispherical, free field environment
and mounted in a closed box with an internal volume of 600 litres (21,2 cu.ft) enclosing the rear
of the driver
Impedance
Impedance(ohms)
(ohms)
316
316
100
100
Fs
Re
Qms
Qes
Qts
BL
Mms
Vas
Sd
Xmax
Le
Eff
44
5.4
4.8
0.32
0.30
22.1
107
121
0.091
7.5
0.7
3.11
Hz
ohm
T·m
gr
liters
m2
mm
mH
%
MOUNTING INFORMATION
Overall Diameter
Bolt Circle Diameter
Bolt Hole Diameter
Front Mount Baffle Cut-out
Rear Mount Baffle Cut-out
Depth
Volume occupied by the driver 6
393/15.5
371-376/14.6-14.8
6.5/0.3
352/13.9
360/14.2
148/5.82
4.3/0.15
mm/inch
mm/inch
mm/inch
mm/inch
mm/inch
mm/inch
liters/ft3
SHIPPING INFORMATION
10
10
20
20
100
100
1.000
1.000
Frequency (Hz)
(Hz)
Frequency
10.000
10.000
20.000
20.000
Net Weight
Shipping Weight
12.2/26.8
12.8/28.4
Kg/Lbs
Kg/Lbs
Impedence magnitude curve measured in free air
NOTES TO SPECIFICATIONS
1 Program Power is defined as 3 dB greater than AES power. - 2 AES standard. - 3 Sensitivity measurement is based on a 500-2,5 kHz pink noise signal with input power of 2.83V @ 8 Ohms. - 4 Thiele-Small parameters are
measured after a 2 hour warm up period running the loudspeaker at full power handling capacity. - 5 The maximum linear excursion is calculated as: (Hvc - Hg)/2 + Hg/4 where Hvc is the voice coil depth and Hg the gap depth. - 6
Calculated for front mounting on 18 mm thick board.
The data are not binding; RCF reserves the right to modify the data at any time and without previous notice.
75
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