High power, self-powered Class-D Cardioid sub cabinet 3x18"Previous page


Extremelly high power, self-powered (Class D switch mode power supply) Cardioid sub-bass cabinet with three 18″ (5″ voice coil) low frequency neodymium transducers with Double Silicon Spider (DSS) technology and reinforced cones with carbon fiber.

DSP (FIR technology) controlled with 4.200W amplification with PFC (Power Factor Correction), 141dB SPL.

The BLX-318SWA cardiod is part of the BLX Line Array Series and is the ideal solution for application in theatres, concert halls, stadiums, large discos, or any event where high precision Line Array is required. This sub-bass cabinet is the ideal combination where low frequency reinforcement is required for the BLX-L212A.

Ultra high power, cardiod, sub-bass cabinet with three 18″ low frequency neodymium transducers with carbon fiber reinforced, straight ribbed cones and Double Silicon Spider (DSS) technology delivering extremely low distortion. The transducer cones are weather protected for outdoor use and optimized air flow reduces heat dissipation increasing power handling and lowering the power compression figure. Voice coil technology employs 2 layers of copper clad aluminium wire with triple roll, polycotton suspension. The system is powered with a total of 4.200W of class D amplification with PFC (Power Factor Correction) and each cabinet has a DSP integrated. Other features include temperature sensor, fan speed control, inclinometer, Ethernet options and more.

The BLX-318SWA cardiod cabinet is not a conventional cardiod but a ‘2 in 1’. Because of our sophisticated integrated processor the user can select between omnidirectional or cardiod coverage, activating the rear speaker as well as selecting the rear frequency they most want to cancel, increasing the front pressure and directivity and ensuring that rear sound does not spill on to the stage behind the sub-bass.


ComponentsFront: 2 x 18″ (5″ voice coil) neodymium. DDS technology. Reinforced cone with carbon fiber.Rear: 1 x 18″ (5″ voice coil) neodymium. DDS technology. Reinforced cone with carbon fiber.
Frequency RangeCardiod:  30Hz – 100Hz / Omni:  30Hz – 160Hz
Frequency ResponseCardioid:  32Hz – 95Hz ± 3dB / Omni:  32Hz – 140Hz ± 3dB
Max. SPL138dB / 141 dB peak
FormatCardioid or omnidirectional
Coverage AngleDepending on selected DSP configuration
Power4.200 W Class D with switching power supply and PFC (Power Factor Correction)
Processing56 bit Boxxline dspb-22 with FIR filters
ControllTemperature sensor – Fan speed
Controll ConnectionsEthernet (OMS) optional / USB (DSP programming)
AC Power85V – 270V. 50/60 Hz with PFC
AC Connections32A Neutrik Powercon NAC3FC-HC
Material18mm Premium Birch Plywood
FinishHigh Resistant Water-Based Black Paint. Black Steel Grill With Acoustic Fabric Protection
Dimensions (HxWxD)620 x 1205 x 970 mm
Weight112 Kg


Technical Sheet BLX-318SWA1.01 MB - pdf
More info

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