Qi subwoofer

Qi-SUB subwoofer front
Qi-SUB subwoofer front line array

Qi subwoofer

Bass-reflex subwoofer

  • Components 18"
  • SPLmax 133 dB

Product description

The Qi-SUB is the installation version of the Q-SUB and can be used to supplement Qi1, Qi7 and Qi10 cabinets in various combinations, either flown or ground stacked. It is acoustically compatible with the standard road version, differing only in cabinet construction and mounting hardware. The Qi-SUB cabinet is an actively driven bass-reflex design housing a long excursion 18" driver, its frequency response extending from 40 Hz to 130 Hz. The Qi-SUB cabinet is constructed from marine plywood and has an impact resistant paint finish. The front of the loudspeaker cabinet is covered with a replaceable acoustically transparent foam that is then protected by a rigid metal grill. Four M10 threaded inserts on each side panel of the cabinet enclosure are provided for attaching installation hardware. Four rubber pads placed into their recessed positions prevent movement of the cabinets when two or more Qi-SUBs are stacked. The cabinet rear panel is fitted with two NL4 connectors wired in parallel. The loudspeaker cabinet is also available in Special Colour (SC) and Weather Resistant (WR) options.

System data
Frequency response (-5 dB)
40 Hz - 130/1001 Hz
Cabinets per channel D6/D12/D20/D80
Max. sound pressure2
with D6
with D12/D20
with D80

129 db SPL
133 db SPL
133 dB SPL
Loudspeaker data
Power handling capacity (RMS/peak 10 ms)
400/1600 W
18" driver
Dimensions / weight
Dimensions (H x W x D)
488 x 580 x 669 mm
19.2 x 22.8 x 26.3"
37 kg
81 lb

1 100 Hz mode
2 1 m, free field, SPL max peak test signal: pink noise with crest factor 4

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