Blaze Audio BL218SSi-B Dual 18-Inch 5000W Passive Subwoofer

The BL218SS subwoofer is designed to work with the Blaze PowerZone™ Connect 3004 power amplifier only. This amplifier incorporate the DSP equalisation facilities required to optimise the subwoofer acoustic performance, while also providing appropriate output power capabilities. One PowerZone™ Connect 3004 power amplifier is able to drive one or two BL218SS subwoofers. The subwoofers can be configured in standard, omnidirectional directivity mode, or to play the backward facing role in cardioid subwoofer pairs. Cardioid directivity with BL218SS subwoofers requires multiple power amplifiers.

BL218SS series subwoofer and PowerZone™ Connect amplifier connections are illustrated in the diagram alongside.

Blaze Audio BL218SSi-B Features

• 5000W of stunning low-end response
• Symmetrical dispersion pattern
• The Blaze BL218SS is designed to satisfy the need for an extreme high SPL sub bass loudspeaker system
• Components have been selected solely for their performance
• The Blaze BL218SS utilizes two direct radiating 18-inch, 2500W cone driver in a tuned enclosure, which provides maximum output with minimal distortion and smooth extended low frequency response
• The tour-tested 21 ply Baltic Birch highly braced enclosure and 24 mm thick baffle board construction provide unsurpassed rigidity and strength
• Configurable as in cardioid, or end-fire arrays
• Full integration with Blaze Power Zone Connect 3004 amplifiers

• BL218SSi-B Dual 18-Inch 5000W Passive Subwoofer1

• Frequency Response (-3dB)* 25Hz - 150Hz
• Frequency Range (-10dB) 18Hz - 150Hz
• Recommended High-Pass Filter 20Hz (Butterworth, minimum 24dB/Octave (4th order)
• Nominal Directivity (-6dB) Omnidirectional or cardioid
• Recommended Crossover Frequency 90Hz (acoustic, active, external DSP)
• RMS Power Handling Capacity** LF: 5000W
• Maximum SPL @ 1m*** 143dB (Blaze Audio preset)
• Transducer ComponentsLF: 18 inch (457.2mm) x 2
• Transducer Nominal ImpedanceLF = 4 Ohms
• Dimensions (HxWxD) 22.5x48x30” (571.5x1,219.2x762mm)
• Net Weight285 lbs. (129.27 kg)
• Shipping Weight295 lbs (133.8 kg) - approximate with carton
• Enclosure Material Baltic birch plywood, engineered plastics and aluminum frame.
• Finish Two-part spray catalyzed Polyurea coating on plywood.
• Grille Material 14-gauge (1.0) perforated steel, powder-coated finish, black.
• Environmental Indoor use only.
• Connectors/Bi-Amp Two (2) parallel-wired NL4 Neutrik® Speakon® connectors.
• Suspension/Mounting Internal bracket w/ threaded 0.375” flying points (x18)
• Notes
  • *Frequency response and range measured on-axis with anechoic environment.
  • ** Power handling tested using pink noise filtered to meet IEC 268-5, 6 dB crest factor, 100 hours, with recommended EQ.
  • *** Peak level measured at 1m under free field conditions using 10 dB crest factor pink noise with specified ([Blaze Audio] preset) and corresponding EQ settings