Moteur à compression BMS 4590
[4590-8+8] Avis/Critiques Features :
- Extended bandwith (300-22000 Hz)
- Point source sound reproduction
- Excellent phase coherence
- With two subsystems in one, each driver covers a smaller frequency range for
increased power handling, high dynamic and extremely low distortion
- Perfect time alignment without the problems of multi-source
interference
In a conventional full range compression driver the phase plug must be
located extremely close to the diaphragm, excursion of the diaphragm is limited
and middle frequency performance is compromised.
A typical 2" dome
compression driver has a limited high frequency response. Over 8 kHz the dome
diaphragm breaks up causing resonance and harsh, metallic sound.
The BMS
annular midrange diaphragm covers the frequency range between 400 and 7.000 Hz
with a smooth, linear response. The large diaphragm excursion of max. +/-0,8 mm
results in high output and increased power handling up to 1300 W peak.
The
ultra light annular diaphragm for the high range offers exceptional transient
response with very high efficiency from 6 to 22 kHz.
Specifications
Throat diameter 2" (50.8 mm)
Nominal
impedance 2 x 8 Ohm
Power capacity
Middle range (AES) 150 W RMS above
400Hz
peak 1000 W peak above 500Hz
High range (AES) 80 W
peak 450
W
Sensitivity 1W/1m 118dB on 2242 Horn
Frequency range (Hz) 200 –
22000
Recommended crossover 300Hz
Middle frequenzy range 300 -
7000Hz
High frequenzy range 300 - 22000Hz
Middle/High crossover
6300Hz
Voice coil high-range 1.75” (44.4 mm)
Voice coil mid-range 3.5” (90
mm)
Magnet material Ceramic
Flux density (Tesla) 1.95
Efficency 35%
(300 - 5000Hz)
Voice coil material Copper Clad Aluminium
(2Layers in and
outside of the VC)
Voice coil former Kapton ™
Diaphragm material
Polyester
Mounting information
Overall Diameter 182 mm (+/- 3 mm)
Depth
129 mm
Net weight 9 kg
4x M6 holes, 90° on 101.6 mm, 4” diameter
Mounting information
Overall diameter 182 mm (+/- 3 mm)
Depth 129 mm
Net weight 9 kg
4 x M6 holes, 90° on 101.6 mm, 4"
diameter
BMS 4590, SPL 1W/1m, 4 V RMS
BMS 4590, SPL 1W/1m, 4 V RMS
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