Active Subwoofer 100W (20cm)

ATB20A 20 cm / 8 inch Active Subwoofer with Passive Membrane

AXTON ATB20A – 20 cm / 8″ active subwoofer for cars and mobile homes, compact housing bass box with amplifier, active bass box with high-level inputs, 140 watts

Compact, powerful and with a modern design – the active subwoofer AXTON ATB20A was developed for music lovers who do not want to do without loading space or bass on the go. With dimensions of 315 x 275 x 330 mm, the bass box can be positioned flexibly in larger vehicles such as motorhomes or trucks, but also in the trunk of small vehicles. Quick to install and remove, AXTON’s bass box is also suitable for leasing vehicles that should be changed as little as possible.

The surface of the bass box is coated with a high-strength, durable textured paint, as used in professional PA technology. That provides protection against undesirable damage that can occur in the trunk, and makes it easier to care for the bass box – so that the ATB20A always looks good.

The newly developed 20 cm woofer and the new passive cone have a one-piece construction with special geometry for precise bass reproduction – even at high excursions. The combination of the light cone material and the powerful magnet drive results in a very high efficiency. The integrated amplifier delivers 100 watts RMS and makes for tight, powerful bass. The amp module is mounted in a protected position at the rear of the housing. Nevertheless settings can be easily made at any time.

The compact active bass box has all the necessary setting options on board. These include the integrated electronic 12 dB/oct. Low-pass filter, adjustable between 50 – 150 Hz, as well as a variable phase shift (0 – 180°) and input gain as well as a bass boost (0 – 12 dB).
AXTON’s subwoofer box has cinch inputs and high-level inputs with auto turn-on function: This means that the universally applicable ATB20A is ideally equipped for a simple direct connection to factory radios, multimedia and navigation systems factory radios without a remote output. A bass level remote control is included in the package.


  • 20 cm / 8″ active subwoofer with passive membrane
  • Woofer with concave cone geometry for high rigidity
  • Compact housing dimensions, housing with sloping rear wall
  • Hard-Wearing surface thanks to high-strength textured paint
  • Class-D amplifier module with 100 W RMS
  • Variable low-pass filter: 50 – 150Hz/12dB/oct
  • Bass Boost: 0dB – 12dB
  • Phase Shift: 0 / 180 degrees
  • Variable Gain
  • High-level inputs with Auto Turn-On function
  • Bass level remote control included
SKU: ATB20A Category: Tags: , , , ,

Subwoofers (Car)

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Technical Specifications:

Type of loudspeaker: Active Subwoofer
Driver: Woofer 8″ (20cm)
Output power @ 4 Ohm: 1 x 100 W RMS
Frequency Response: 45 – 150 Hz
Variable low-pass filter: 50 – 150Hz/12dB/oct
Bass Boost: 0dB – 12dB
Phase Shift: 0 / 180 degrees
Dimensions (H x B x T): 315 x 275 x 330 mm