18″ Beyma LOUDSPEAKER LEX1000ND 8 OH
€342.55
High power handling and low distortion 18″ subwoofer
Exclusive Malt Cross® Technology Cooling System
Low power compression losses
High sensitivity: 98 dB (1W / 1m)
FEA optimized neodymium magnetic circuit
Ultra low air noise
Optimized non-linear behaviour
Waterproof cone with treatment for both sides
3.5″ DUO double layer in/out copper voice coil
Extended controlled displacement: Xmax ± 10 mm
65 mm peak-to-peak excursion before damage
Optimized for direct radiation and band-pass subwoofer applications
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BEYMA 18LEX1000Nd LOUDSPEAKER 18LEX1000Nd 8 OH
MALT Cross
In Beyma we face the problem of heat dissipation with a clear goal in mind: the speaker must deliver the best performance in the system in a consistent and reliable way, maximizing the total SPL and keeping it stable.
It is well known how the overall SPL of a system suffers a drop after some time working due to the power compression effect in the speakers. It is also known that normally the bigger the voice coil diameter the higher the power capacity, but this also means bigger motor structures to obtain high total output from the transducer.
The Maltcross cooling technology that we deliver to the Professional Audio market through our speakers, bring together several solutions to meet our goal; in one side allows the woofer to handle bigger rates of power with a given coil diameter, so we can think in smaller coil designs with smaller motor structure, reducing the weight but increasing the sensitivity and also keeping an adequate power handling figure for a target application, maintaining a total SPL finally that may be equivalent to a bigger size motor structure driver.
The Matcross technology is a forced convection circuit inside the heart of the driver that helps to lower the working temperature of the coil and also acts like a demodulation ring, linearizing the inductance of the transducer.
Brand BEYMA
Nominal impedance 8 Ohm
Power capacity 1000 W AES
Nominal diameter 460 mm 18 in
Sensitivity 98 dB 1 W @ 1 m @ ZN
Minimum impedance 6.5 ohm
Frequency range 35-1000 Hz
Program power 2000 W
Recommended enclosure volume 200 l
Voice coil diameter 88.9 mm 3.5 in
BL factor 22 N/A
Moving mass 0.185 kg
Winding length 25 mm
Air gap height 12 mm
Xdamage pp 65 mm
Fs 34 Hz
Re 5.1 ohm
Qms 5.6
Qes 0.42
Qts 0.39
Vas 260 l
Cms 117 µm / N
Rms 7.1 kg/s
Efficiency % 2.4
Sd 0.1255 m²
Xmax 10 mm
Vd 1255 cm³
Le @1 kHz 1.6 mH
Depth 233 mm 9.2 in
Net weight 7.3 kg 16.1 lb
Total weight 8.6 kg 18.9 lb
Magnet Neodymium
POWER (W AES) 1000
SEN. (dB 2.83V-1m) 98
COIL DIAM. (in) 3.5
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