Eighteen Sound design
Manifolded 2x21” band-pass subwoofer
- Drivers
- 21NLW9000or 21LW1400or 21NLW9600
Enclosure designs
Eighteen Sound 21LW1400
enclosure designs
Cabinets for the 21LW1400: two designs and a suggested box from Eighteen Sound, and flatpack kits of the Manifolded 2x21” band-pass subwoofer.
Eighteen Sound’s designs
From the maker, with plans to download
Cut in the UK
Eighteen Sound design
1x21” band-pass subwoofer
- Drivers
- 21LW1400or 21NLW4100or 21LW2600
Eighteen Sound’s suggested box
From Eighteen Sound’s 21LW1400 page
- Net volume
- 300L
- Tuning
- 30Hz
Eighteen Sound gives the volume and tuning only; the port is yours to size.
The 21LW1400
Specs, prices and shops
Eighteen Sound · 21" · 8 Ω21LW1400
- Fs
- 28Hz
- Xmax
- 9.5mm
- SPL
- 98dB
- Qts
- 0.24
- Vas
- 385L
- Pe
- 1000W
£426.63
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