Enclosure Type: Band Pass
Driver Alignment: Subwoofer
Bass Type: Subwoofer
Crossover Type: DSP
Impedance: 4 Ohm
Sensitivity: 96 dB
Cutoff -3 dB: 35 Hz
Diaphragm Material: Paper
Build Complexity: Novice
Radiation Type: Monopole
Type of Use: Public Address
Placement: Outside
Bass Driver Size: 18 inch
Cost of Parts: $1260


manifolded, double 18” band-pass subwoofer kit


The Enclosure

  • High performance 2 x 18” subwoofer system
  • Equipped with 18NLW9601, for a lightweight box and extremely high power handling
  • The enclosure should be made of baltic birch plywood (18mm thickness)
  • Bolts are M6x35mm
  • M6 T-Nuts are recommended
  • Handling, rigging and connectors are user’s choice
  • It’s recommended to damp the cabinet interior well, but not extremely
  • An example of proper damping can be seen in the images
  • A high density dampening material, such as Dacron or other synthetic fibers, is required for better performance
Internal View
Internal View And Damping
Exploded View
Front View
Rear View
Top Section
Rear Section
Side Seaction
Details: Part A and F
Eighteen Sound is a leading designer and manufacturer of high quality professional audio loudspeakers, developing state-of-the-art transducer technologies and using the most advanced production techniques, located in Reggio Emilia, Italy.
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