W28A
bi-amped, active loudspeaker system
Specifications
Speaker system
•
Components:
- bass frequencies
Woofer Mod. 15NDL76 - 8
Ω
Nominal diameter
Frequency range
Power capacity
Sensitivity
Rated impedance
Net weight
TThiele & Small Parameters
fs
Re
Qms
Qes
Qts
Vas
η
o
B.l
SD
Xmax
- mid/high frequencies
Exponential horn (ME60)
Nominal coverage:
Cutoff frequency:
Throat diameter:
Material:
Dimensions:
Net weight:
Driver (DE1050)
Throat diameter:
Nominal impedance :
D.C resistance:
Power capacity:
Sensitivity:
Frequency range:
Voice coil diameter:
winding material:
Diaphragm material
Inductance:
Flux density:
Overall diameter:
Depth:
Net weight:
•
Impedance
•
Frequency response
•
Sensitivity (1W / 1m)
•
Max SPL
Built-in electronic crossover:
•
crossover frequency
•
slope
Built-in power amplifiers
•
Max. output power
- bass
- mid-high
•
Frequency response (bass + mid-high)
•
Input impedance
•
Input sensitivity
•
Noise referred to input
•
Power supply (Europe and Asia)
•
Power supply (USA and Canada)
•
Fuse (Europe and Asia)
•
Fuse (USA and Canada)
Connections
Construction and finish
Dimensions (w x h x d)
Weight
2-way bass reflex
custom designed to Montarbo specifications
2 x 15" high efficiency woofers, with neodymium magnet
15"
40÷2000Hz
1000W
100dB
8 Ohms
4,6 Kg
37Hz
5,3 Ohms
4,5
0,24
0,22
95dm
3
4,1%
22,5Tm
855cm
2
±7mm
2" neodymium driver coupled with a
constant directivity horn
(HxV) 60°x40°
800 Hz
50 mm (2")
cast aluminium
270x237x202 mm
2 Kg
50 mm (2")
8 ohms
8,3 ohms
300 Watt RMS
109,5 dB
0,5 ÷ 20kHz
100 mm (4")
aluminum
titanium
0,14 mH
1,95 T
154 mm
85mm
3,6 kg
4 ohm (bass) / 8 ohm (mid/high)
45Hz ÷ 20kHz
- bass: 45Hz ÷ 900 Hz
- mid/high: 900Hz ÷ 20kHz
106 dB SPL
135 dB
900Hz
24dB/Oct
2 MOSFET (class AB) with 2 independent processors
900 + 300 W
900 W continuous
(4 ohms, @ 0,1%THD)
/
1200 W peak
300 W continuous
(8 ohms, @ 0,1%THD)
/
350 W peak
Forced cooling provided by a thermostatically controlled
low turbolence fan.
35Hz ÷ 25kHz +0/-1dB
10KOhms (balanced)
0dB (775 mV)
- 108dB (A weighted)
230 V.A.C. 50÷60 Hz
117 V.A.C. 50÷60 Hz
F 6,3 AL
F 10 AL
Balanced male (OUT) and female (IN) XLR inputs
wired in parallel.
Phenyl-glued multiply birch; polyurethane paint
48 x 109,6 x 40 cm
50,5 Kg
APPENDIX
14