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Altronics - Opus One Compact - Weatherproof Speakers


Employing an all-weather polypropylene cone and rubber surround ensuring extended service life when used either for indoor or outdoor applications. Extremely compact it is well suited to confined areas. The C 0840 is an excellent choice for mounting in boats, alfresco areas, bathrooms, under eaves etc. Installation is made very simple by the in-built swivel clamps.

Suits ceilings or walls up to 29mm thick. Sold in pairs. Ceiling or panel cut out required 140Ømm.

IP65 rated for outdoor use. Great for boats, yachts, outdoor areas etc.

Features aluminium grill & stainless steel fixings.



  • Impedance: 4Ω
  • Rated power: 20W RMS
  • Max power: 30W
  • SPL 1W @ 1m: 88dB
  • Freq response: 65Hz - 17kHz
  • Weight: 710g
  • Mounting hole size (mm): 140Ø
  • Dimensions (mm): 167Ø x 62D
  • Sold as pair

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