The CTSW10 is a passive subwoofer featuring a 10-inch paper drive unit. It is designed to be used with both the CT800 and CT700 ranges. All CT SW subwoofers have a closed-box design that makes them easy to install in cabinetry.

It might seem strange to many listeners that a material like paper could have much to do with a product as solid and powerful as a Custom Theatre subwoofer. Nevertheless, paper plays a vital part in what they’re hearing.

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Closed-box subwoofer system with external rackmount amplifier

Technical features

  • Long throw paper/Kevlar® cone bass driver
  • Magnetically attached grille

Drive units
ø250mm Paper/Kevlar® cone long-throw

Frequency range
-6dB at 18Hz and 25/140Hz adjustable (EQ at A)

Frequency response
±3dB 26Hz – 40/140Hz adjustable (EQ at A)

Bass extension

  • -6dB at 18Hz (position A)
  • -6dB at 23Hz (position B)
  • -6dB at 29Hz (position C)

Power handling


  • Height: 360mm
  • Width: 340mm
  • Depth: 260mm
  • Depth with grille: 290mm

Net Weight

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